Commit graph

28 commits

Author SHA1 Message Date
Parafee41
ee2feb7a5b
fix(cli): announce explicit registry alias changes (#3334)
* fix(cli): announce explicit registry alias changes

* fix: handle async rename observer failures

* Address PR review feedback (#3334)

- Invoke onRename after withRegistryLock releases so observer I/O cannot stall the registry
- Spy the rejecting observer and prove lock release via re-entrant registerRepo

Co-authored-by: Cursor <cursoragent@cursor.com>

* chore(autofix): apply prettier + eslint fixes via /autofix command

---------

Co-authored-by: Gergo Magyar <gergomagyar0@gmail.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-09-20 08:28:28 +01:00
Gergő Magyar
9d95af9fc3
refactor(analyze): move detected-branch sanitization off CLI config (#3325)
* refactor(analyze): load detected-branch sanitization from core git-ref

Keep the never-throw helper next to validateBranchName so run-analyze no longer imports CLI config parsing.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(analyze): warn once when a checkout name cannot label the index

After the write lock settles, emit a single onLog warning and keep writing the workspace slot. Pin that run-analyze does not import CLI analyze-config.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(analyze): escape hidden checkout names in the detect-reject warning

Keep the rejected ref visible in onLog without replaying bidi or quote characters, and document that sanitizeDetectedBranch rethrows unexpected errors.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(analyze): keep detect-reject warnings on one line (#3325)

Git-legal U+2028/U+2029 checkout names were rejected as whitespace but left raw in the new onLog warning, so the message split across two lines. Escape those code points in the formatter without changing validateBranchName.

Co-authored-by: Cursor <cursoragent@cursor.com>

* chore(autofix): apply prettier + eslint fixes via /autofix command

* fix(analyze): keep C1 and Unicode spaces in detect-reject warnings

Escape NEL and remaining whitespace as \uXXXX so stripControlCharacters cannot drop or disguise the rejected checkout name.

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Gergo Magyar <gergomagyar0@gmail.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-09-18 11:03:24 +01:00
Gergő Magyar
21a52af1d4
fix(lbug): ship FTS per-platform and recover in-place native aborts (#3274)
* fix(lbug): pin Ladybug core so Dependabot cannot ship a skewed FTS artifact

The extension version is a separate upstream constant. Ignore daily core bumps and fail the pairing gate when the committed manifest does not name the installed core.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): make doctor and CI FTS gates resolve the packaged artifact

Doctor and the REQUIRE_FTS file gates still treated an empty ~/.lbdb as
unavailable, which would turn three CI jobs red once analyze stops
installing into that tree.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): name native-abort and tuple-missing so analyze cannot mis-advise

The CLI summary's trailing else treated every unknown skip reason as a
missing extension. New crash and platform causes must get their own
remedies, not a network-install hint.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): delete the dead read-path FTS index create

ensureFTSIndex had no production callers and swallowed read-only
CREATE_FTS_INDEX failures, which hid the only signal that a reader
tried to write.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): vendor per-platform FTS artifacts so analyze needs no host install

Keyword search depended on a CDN fetch into ~/.lbdb. Shipping the five
published tuples inside the package makes air-gapped and ignore-scripts
installs load the same artifact the publish gate checksums.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): load the packaged FTS artifact before any network install

Analyze still required a CDN fetch into ~/.lbdb even when the package
already shipped the file. FTS now path-loads the vendored tuple first
and records source labels so a later truncated home copy cannot steal
the diagnosis.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): diagnose a core/extension version skew instead of a missing runtime

A structurally valid FTS artifact whose path version disagrees with the
packaged pin must name both versions, not prescribe VC++ or OpenSSL.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): stamp an FTS phase so repair stays usable after an in-place abort

A native CREATE_FTS_INDEX abort leaves no skip reason; the next run infers
it from the dirty flag, and --repair-fts must not treat that phase as a
half-written graph.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): park an in-place FTS crash WAL without wiping the graph

An FTS abort after a successful checkpoint must reopen the live index on
macOS, Windows, and Linux. Staging never parks the live WAL; readers keep
today's large-WAL refusal.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): refuse read-only opens of an FTS-poisoned WAL

MCP and serve cannot repair a leftover in-place abort. Fail before the
native open and name --repair-fts, on macOS, Windows, and Linux.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): name a vendor-neutral Windows OpenSSL prerequisite

OQ1 is unanswered here so GitNexus does not ship OpenSSL DLLs. Windows
FTS now asks for a system OpenSSL 3 runtime instead of Git Bash PATH.

Co-authored-by: Cursor <cursoragent@cursor.com>

* test(lbug): inject the FTS vendor root and redact it on HTTP and MCP

Path-loaded artifacts no longer vary with HOME. Tests pass an injected
vendor tree and assert search warnings never leak a filesystem path.

Co-authored-by: Cursor <cursoragent@cursor.com>

* docs(lbug): document load-only as the global FTS install default

Analyze still overrides to auto. Packaged per-platform artifacts load
before any network install on macOS, Windows, and Linux.

Co-authored-by: Cursor <cursoragent@cursor.com>

* docs(lbug): format the FTS install-policy README table

Prettier does not run on Markdown in pre-commit, so the U10 table wrap
needs its own formatting commit.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): skip FTS CREATE after a persisted native abort

A recovered analyze run was retrying CREATE_FTS_INDEX from skipReason
alone. Keep that skip until --repair-fts, fail closed on unsupported
tuples, and honor the checkpoint warrant for park/repair.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): honor checkpoint flushed warrant and align FTS tests with packaged vendor

A no-op CHECKPOINT must not satisfy the FTS park warrant, and CI still asserted HOME-only FTS isolation after analyze started path-LOADing the packaged artifact.

Co-authored-by: Cursor <cursoragent@cursor.com>

* test(lbug): accept a nonempty incremental write set in the #2790 recovery check

FTS-phase recovery can incremental-add files (changed=0, added=1). That is not the #2790 empty-diff wipe skip.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): compare FTS home versions to the core pin and tighten the publish filename gate

Ladybug's ~/.lbdb/extension directory is the runtime/core version; treating it as the artifact version false-diagnosed skew. The publish guard now rejects a path-escaping filename the same way the fetch script does.

Co-authored-by: Cursor <cursoragent@cursor.com>

* test(lbug): seed FTS e2e fixtures from the packaged vendor artifact

A machine with no ~/.lbdb copy should still run the vendor-survivorship cases; the seed no longer depends on HOME or a network install.

Co-authored-by: Cursor <cursoragent@cursor.com>

* Address PR review feedback (#3274)

Keep in-place FTS abort evidence after persist so a second CREATE abort
cannot fail-open readers, and close the CLI, loader, embed, and e2e gaps
the review called out.

Note: full npm test hit Ladybug worker-pool startup failures under memory
pressure; tsc and 180 targeted unit tests passed.

Co-authored-by: Cursor <cursoragent@cursor.com>

* Address PR review feedback (#3274)

Run the vendored-path symlink guard on the OS matrix, put e2e HOME
fixtures on Ladybug's real extension layout, pin the embed crash-WAL
gate before the writable open, and let analyze writers park through
missing-shadow recovery.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(lbug): keep --repair-fts CI green after vendored-first FTS

Never-installed warning fixtures must not inspect a packaged vendor binary, and a failed dirty restamp must not abort an otherwise successful --repair-fts run.

Co-authored-by: Cursor <cursoragent@cursor.com>

* test(cli): give the #1169 analyze e2e the same 90s Windows budget as its sibling

The first #1169 persist-meta case was still on a 60s spawn/it budget and was killed banner-only on windows-latest after the FTS warning fixture no longer failed the shard first.

Co-authored-by: Cursor <cursoragent@cursor.com>

* test(ci): reweight Windows shards after the FTS e2e grew

Vendored-first HOME fixtures pushed fts-extension-e2e to ~6 minutes on windows-latest, so the old 146s weight packed it with skills-e2e and blew the 20-minute watchdog.

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Gergo Magyar <gergomagyar0@gmail.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
2026-09-14 08:52:24 +01:00
azizur100389
f8036ac349
feat(analyze): add explicit FTS opt-out (#3205)
* feat(analyze): add explicit FTS opt-out

* chore(autofix): apply prettier + eslint fixes via /autofix command

* fix(analyze): treat flag and env FTS opt-out as one mode

Avoid a same-commit rebuild when only the skipReason discriminator
changes, and advertise disablement on dirty meta before leftover
indexes are wiped.

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Gergo Magyar <gergomagyar0@gmail.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
2026-09-11 14:05:28 +00:00
Gergő Magyar
7e993ab897
fix(group): fail ambiguous sync names and honor analyze --name (#3094)
* fix(group): fail sync when a member name is ambiguous

Silent first-match bound the wrong clone when --allow-duplicate-name
registered two paths under one alias. Refs #3028.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(analyze): apply --name on the already-up-to-date path

A rename should not require --force when the index is already current.
Register before the same-commit branch restamp. Refs #3028.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(group): hint member path when impact --repo is an alias

$localRepo stays the yaml key; joining on the registry alias is a
non-join. List matching keys so operators can retry. Refs #3028.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(group): keep injected sync and alias hints consistent

Workspace-deps path maps reuse the resolved handle so duplicate names
cannot throw after an injected resolver. Alias hints match case-insensitively.

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Gergo Magyar <gergomagyar0@gmail.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
2026-08-29 21:48:46 +00:00
Gergő Magyar
7468cc915b
fix(analyze): replace the hand-incremented schema version with a derived DDL fingerprint (#2798) (#2808)
* feat(schema): derive a fingerprint from the DDL this build creates

`SCHEMA_FINGERPRINT` is a sha256 digest of the node and relation DDL that
`runSchemaCreationQueries` actually executes, in the same shape as the existing
`taintModelVersion` stamp (hex, sliced to 12).

It exists because `INCREMENTAL_SCHEMA_VERSION` is hand-picked and has to
*predict* whether an on-disk database matches this build's DDL. That number has
collided with `main` eight times, twice exactly — and an exact clash is the
quiet one, because the reuse gate is a strict `===`.

`EMBEDDING_SCHEMA` is deliberately excluded: its `FLOAT[N]` width comes from
`GITNEXUS_EMBEDDING_DIMS` at module load, so folding it in would make the
digest a function of the environment rather than of code, and two runs of the
same build under different env would thrash full rebuilds.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* feat(storage): record the DDL fingerprint in RepoMeta

`RepoMeta.schemaFingerprint` stores the digest of the DDL an index's tables
were actually created from. It is the derived companion to `schemaVersion`,
not its replacement: both are compared, and both must match.

Absent means mismatch, deliberately. Grandfathering a missing fingerprint
would let an incremental top-up stamp a fresh one onto a database whose DDL
was never verified, permanently certifying exactly the wrong-shaped index the
field exists to catch. The cost is one full rebuild per pre-existing index.

The version ladder gains a note that its "re-check against origin/main before
merge" ritual now only guards *semantic* bumps. v25, v26, v30, v31 and v34 all
changed emitted ids, edges or wire formats while leaving the DDL byte-identical,
and the fingerprint cannot see any of them — but DDL collisions no longer need
renumbering.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(analyze): gate index reuse on the DDL fingerprint, not just the version (#2798)

`INCREMENTAL_SCHEMA_VERSION` is a hand-incremented integer that has to predict
a derived fact: whether the on-disk DDL matches the code's DDL. It has collided
with `main` eight times, and twice the collision was *exact*.

An exact clash is the silent one. Two builds stamp the same number over
different DDL, the `===` reuse gate reads the index as current, every
`CREATE ... TABLE` is then skipped as "already exists" (suppressed in
`runSchemaCreationQueries`), and the edges whose endpoint pair the live database
cannot hold are dropped by `fallbackRelationshipInserts`' bare `catch`. The
result is a wrong graph, with no error anywhere.

Reuse now requires the version AND the DDL fingerprint to match, in both the
pre-pipeline force-rebuild guard and the `isIncremental` predicate, and the
fingerprint is stamped alongside the version at the end of a run.

Both conditions are necessary. The fingerprint does not replace the integer:
most entries in the version ladder change emitted ids, edges or wire formats
while the DDL stays byte-identical, and a fingerprint-only gate would stop
forcing rebuilds for all of them. What it does buy is that two branches picking
the same number no longer need renumbering.

The new branch sits above the `alreadyUpToDate` fast path for the same reason
the version guard does — a clean tree at an unchanged commit would otherwise
early-return before either check ran.

Closes #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* test(analyze): pin the DDL fingerprint gate and its two failure cases

`schema-fingerprint.test.ts` pins the properties the gate rests on: the digest
covers exactly the node and relation DDL that gets executed (recomputed from
the exported lists, so adding a table or a FROM/TO pair without the fingerprint
moving is impossible), it excludes the environment-derived embedding DDL, and
it moves when any covered string moves.

The two `incremental-orchestration` cases exercise the production path rather
than modelling it: an index carrying the *current* version with a foreign
fingerprint, and one with no fingerprint at all. Both were run against the
pre-fix tree first and both failed there with `alreadyUpToDate === true` —
the fast path swallowing the mismatch, which is the #2798 symptom exactly.

`call-summary-schema-version.test.ts` widens its gate model to two equalities.
The second argument defaults to the current fingerprint so all 33 existing
version cases read unchanged, and a new case covers the collision, the legacy
absence, and the semantic bump the fingerprint cannot see.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* docs(review-skill): point the schema-constant check at the fingerprint, not the deleted integer

All four `gitnexus-review` SKILL.md mirrors told reviewers to verify
`INCREMENTAL_SCHEMA_VERSION` "was bumped or regenerated". That constant no longer
exists, so the instruction sent every future reviewer looking for something they
could not find — and, worse, past its replacement.

The check for graph DDL is now derived: `SCHEMA_FINGERPRINT` moves on its own, so
the question is whether the diff changed a string in `NODE_SCHEMA_QUERIES` /
`REL_SCHEMA_QUERIES`, and whether a newly added DDL array was folded into the
fingerprint at all — the one way the derived gate can still be bypassed.

What did NOT change is called out explicitly: the parse-store `SCHEMA_BUMP` and
the bench fingerprint sets are still hand-maintained and still need the
re-check-against-base ritual, and semantic changes that leave the DDL untouched
fall outside the fingerprint entirely — those rely on the analyzer runner-identity
receipt.

Found by the review swarm's docs lane. The original plan for #2798 claimed no
documentation mentioned the constant; that sweep covered five root docs and never
looked at `.claude/skills/**` or the three mirrors.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* docs(migration): record the one-time rebuild the fingerprint switch costs

Replacing `schemaVersion` with `schemaFingerprint` means every index written by
an earlier GitNexus carries no fingerprint, reads as a mismatch, and is rebuilt
once. That is deliberate — grandfathering absence would stamp a fresh fingerprint
onto a database whose DDL was never verified — but until now it was undocumented,
so a user's first post-upgrade analyze would announce a full re-analyze with
nothing to explain it.

MIGRATION.md already sets the precedent: PR #2363's meta.json → gitnexus.json
rename was equally automatic and equally in need of an entry. This follows that
shape, and is explicit about the parts that are easy to undersell:

- the cost is per INDEX, and branch-scoped slots (#2106) each pay separately;
  on a large repository a full re-analyze is substantial, not a blip;
- rollback is safe — an older binary sees no `schemaVersion` and forces its own
  rebuild, which is a cost, never a stale graph;
- alternating between an old and a new binary rebuilds on every switch, because
  the end-of-run meta is written as a fresh literal so neither field survives the
  other's run.

The retired ladder's per-version rationale is pointed at in git history rather
than reproduced: `git show 561f913a3:.../repo-manager.ts`. That commit is an
ancestor of origin/main, so the pointer survives this branch being squash-merged.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(identity): cover workspace-linked packages in the analyzer dependency digest

`dependencyNames` enumerated `dependencies`, `optionalDependencies` and
`peerDependencies` only. `gitnexus-shared` is declared as a devDependency
(`file:../gitnexus-shared`), and in a source-mode run the build root is the
gitnexus package tree, which does not contain that sibling. So a change to
gitnexus-shared moved neither `build.digest` nor `dependencyRuntime.digest`.

That gap matters more since #2798 deleted `INCREMENTAL_SCHEMA_VERSION`. A
DDL-affecting edit there is still caught by `SCHEMA_FINGERPRINT`, but a
SEMANTIC-only edit — a new `REL_TYPES` member, say, where the relation table
carries a bare `type STRING` column so no CREATE statement moves — was covered by
nothing at all. Roughly thirty of the retired ladder's entries were exactly that
change class, and the runner-identity receipt is what now carries them.

Only checkout-local specifiers are added: `file:`, `link:`, `workspace:`,
`portal:` and npm's bare local-path shorthands. Pulling in every devDependency
was rejected — vitest, eslint and typescript would enter the digest and force a
full re-analyze on unrelated tool bumps, which is worse than the hole.

Scanning the linked sibling for the first time exposed a latent throw:
`collectArtifacts` honoured `PRUNED_RUNTIME_DIRECTORIES` only for a real
directory, so a SYMLINKED `node_modules` fell through to the payload branch and
died with "Analyzer identity input is not a file". Worktree-style dev layouts and
pnpm shared stores hit this immediately — verified in this worktree, where
`gitnexus-shared/node_modules` is such a symlink. Pruning it loses nothing:
packages beneath are still reached through `resolveDependencyPackageRoot`.

Verified: a real `analyze` in this worktree succeeds with `packageCount` 259;
editing the linked package's source moves the digest, bumping an installed
registry devDependency does not, and removing the link moves it.
`DEPENDENCY_RUNTIME_CANONICALIZATION` is deliberately not bumped — freshness
compares digests, not the label, and the input-set change already moves them.

Follow-up worth having: no fixture in the suite declares `devDependencies`, so
this has no regression test yet.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* refactor(analyze)!: delete INCREMENTAL_SCHEMA_VERSION, gate reuse on the DDL fingerprint alone

The integer and its ~180-line version ladder are gone, along with
`RepoMeta.schemaVersion`. Index reuse is now decided solely by
`SCHEMA_FINGERPRINT`; a mismatch — including the absent stamp every pre-existing
index carries — warns and forces a full re-analyze, which wipes and recreates the
database so the tables are built from the current DDL.

Deleting the integer is safe because it was already redundant: the
runner-identity guard deep-compares the whole schema-v4 receipt, including a
digest over the build tree, and forces a rebuild on ANY analyzer delta. Verified
empirically — a comment-only edit to logger.ts, with the fingerprint byte
identical, produced "runner identity changed ... forcing a full rebuild".

The fingerprint is not thereby redundant. It fires where that guard cannot: a
DDL-affecting change in `gitnexus-shared`, which is a workspace-linked
devDependency and so sat outside both digests until the companion commit closed
that gap.

Review findings folded in, each correcting a line this rewrite itself introduced
and never published:

- B1: two assertions matched a log string the rewrite had renamed; both tests
  failed. They now assert what production emits.
- B2: the pre-existing downgrade test perturbed `schemaVersion: 7`, a field this
  change deletes, so the spread carried a valid fingerprint, every guard passed,
  and the run legitimately took the fast path. It perturbs the fingerprint now,
  restoring the only integration coverage of the gate-above-the-fast-path
  ordering invariant.
- N5: duplicate `schemaFingerprint` keys silently collapsed two assertions into
  one (TS1117).
- N6: the absent-stamp message told non-git repositories their index was "built
  by an older GitNexus version" — on every run, about an index this exact build
  had just written. Non-git repos never record a fingerprint, and now the message
  says so.
- N9: the on-disk stamp is shape-checked before being echoed, so a crafted
  gitnexus.json cannot push ANSI escapes through the CLI log.
- N7: a test case that re-computed the same digest expression with its operands
  swapped, mislabelled as a randomness check on a module-level const.
- N10: comments claiming the digest "cannot collide" (it is 48 bits), pointing at
  a vector-column gate that does not exist, and asserting storage/ is free of a
  core/ dependency two lines below a core/ value import.

None of these were caught by `tsc -p tsconfig.json`, which covers src only, nor
by eslint, where no-dupe-keys is off. `tsconfig.test.json` reports all three test
defects and is not currently wired into CI.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* test(schema): pin that the fingerprint covers every DDL statement init executes

`SCHEMA_QUERIES` is the list `runSchemaCreationQueries` iterates — the DDL that
actually runs. The fingerprint hashes only two of its three members, and until
now no test imported `SCHEMA_QUERIES` at all, so nothing tied the two together.

A fourth member appended to that array — the one literally named for what init
executes — would have been invisible to the gate. Every existing test would still
pass, because they all recompute the digest from the same two arrays the
fingerprint already uses. An index whose gate passed would then run `initLbug`
over the old database, where `runSchemaCreationQueries` suppresses "already
exists", so the new table would never be created and its edges would be dropped
by `fallbackRelationshipInserts`' bare catch. A wrong graph, no error — exactly
the failure #2798 exists to end.

The check is a pure predicate over (executed, fingerprinted, documented
exclusions) rather than a positional `toEqual`, so `EMBEDDING_SCHEMA` is named as
an exclusion with its reason — its FLOAT[N] width is environment-derived — rather
than sitting in a list where a future reader might "fix" it by folding it in. It
asserts both directions and is order-insensitive, leaving ordering to the digest
assertion that already pins it.

The negative case is pinned in CI rather than checked by hand once: the same
predicate over a synthetic fourth member must report it. If a refactor ever makes
the predicate vacuous, that case fails even though the positive one would not.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* test(analyze): name the invariant the version deletion now rests on

Deleting `INCREMENTAL_SCHEMA_VERSION` moved a load-bearing guarantee into an
implicit one. Roughly thirty of the retired ladder's entries changed no DDL at
all — node ids, wire formats, resolution tiers — and the fingerprint is
structurally incapable of firing on any of them. Their only remaining cover is
the analyzer runner-identity receipt, and nothing in the suite said so.

This adds a table over the real `analyzerRunnerIdentitiesEqual` with a
well-formed schema-v4 receipt: byte-identical reuses; an entrypoint-only
difference reuses (CLI vs analyze worker); a moved build digest with unchanged
DDL forces — that case IS the invariant, commented as such; and a dependency
change, an ABI change, undefined, null, a schema-v3 legacy receipt, a missing
build section and a non-sha256 digest all fail closed.

The deleted `expect(INCREMENTAL_SCHEMA_VERSION).toBe(35)` pin is also worth
naming: it failed CI on every bump by design, which is what made an author stop
and think. Nothing replaced it. This does not restore that — a digest has no
literal to pin — but it does make the mechanism that took over the job visible to
the next person who reads the file.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* test(spring): pin CLASS_SCHEMA's membership in the fingerprinted DDL set

When `INCREMENTAL_SCHEMA_VERSION` went away, its sibling in
basicblock-callee-ids-schema.test.ts got a replacement assertion tying
BASICBLOCK_SCHEMA to the fingerprint's input set. This file's
`>= 23` floor was deleted with nothing put in its place.

The file still asserts CLASS_SCHEMA's CONTENT — that the `frameworkAnnotations`
column exists — but not that CLASS_SCHEMA is part of what the digest covers, and
the second is what makes an index built before that column carry a different
fingerprint and get rebuilt. Mirrors the sibling so the two read the same way.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(identity): stop a symlinked directory from aborting the whole analyze

`collectArtifacts` fused two orthogonal facts into one condition: that four
directory names never carry runtime payload, and that a symlink where a real
directory was assumed falls through to the payload branch, where
`snapshotReadableFile` stats the target, sees a directory, and throws
"Analyzer identity input is not a file".

The second was only fixed for those four names. Every other symlinked directory
in a scanned package root still aborted the run — `dist -> build`, a vendored
grammar link, anything inside a linked sibling checkout. Newly reachable,
because making workspace-linked packages scannable pointed the scanner at a live
checkout instead of an immutable registry tarball for the first time.

Split along the actual seam: prune on the NAME alone, and give symlinks their own
branch in the type dispatch, ahead of the payload branch.

Link text is recorded rather than followed. Following was rejected on three
grounds, each checked in source: the traversal is a stack with no visited set, so
a self-referential link would recurse to `runtimeDepth` — which throws, trading
one hard abort for another; `snapshotDirectory` rejects a symlink outright, so
the directory guard could not accept one without a realpath rewrite of its
canonical-path identity; and a link into an already-scanned tree double-counts
against `runtimeEntries`/`runtimeBytes`, which also throw. The cost is stated in
code: a link out of the package contributes its text, not its target's content.
Links resolving to a regular file keep the existing content digest.

The new `'unfollowed-symlink'` kind is threaded through every consumer, including
the cache validator — which re-probes with `mode: 'link'`, since the readable-file
probe resolves the target and would return null for exactly this kind, silently
failing every warm validation.

No canonicalization or cache-schema bump. Digest content changes only for trees
that previously crashed: a delta scan over all 258 scanned roots of this install
found no regular file bearing a pruned name and no symlink failing to resolve to
a file, so `dependencyRuntime.digest` is byte-identical here.

Six of the eight new tests fail against the unfixed tree with the exact production
error; all eight pass after.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* refactor(analyze): give the reuse gate a real seam and sanitize logs at the funnel

Cleanup pass over the #2798 branch. Net -183 lines.

The gate had no extracted predicate, so its own test asserted it by regex-matching
run-analyze.ts SOURCE TEXT. That pinned production formatting: one pattern froze
three back-to-back single-name imports from './lbug/schema.js', so merging them —
the obvious tidy-up — failed a test named "still imports the DDL digest itself".

`schemaFingerprintMismatch` and `isSchemaFingerprintShaped` now live in
core/lbug/schema.ts beside the constant. Not in run-analyze.ts next to
`pdgModeMismatch`, because storage/ must stay off the analyze pipeline and
mcp/resources.ts is a plausible second consumer — the same reasoning that puts
`cjkSegmentationModeMismatch` in core/search/. The regex block is gone; the test
calls the predicate. The three imports are merged.

ANSI sanitation moved from one field to the funnel. The per-field guard's own
comment stated the general hazard — gitnexus.json is parsed with no runtime shape
validation and the notice reaches console.log — while two sibling guards twelve
lines away echoed `runnerIdentity.schemaVersion` and `cjkSegmentation` from that
same file raw into the same log. `log()` now strips C0/C1 controls, covering all
seven guard messages and any written later.

Also:
- Deleted a duplicate integration test. After the downgrade test was repointed at
  `schemaFingerprint` it became the same scenario as the new one, differing only
  by an extra log assertion — which is now folded into the survivor. Saves a
  fixture and two full pipeline runs per CI pass.
- Replaced a 3-parameter set-difference helper with one set equality. Its doc was
  false at one call site (arguments semantically swapped) and it needed a fourth
  test purely to prove itself non-vacuous; set equality cannot go vacuous.
- Removed ~115 lines of runner-identity table that duplicated
  analyzer-identity.test.ts. The three genuinely uncovered cases moved there, and
  the #2798 invariant — build digest moved while the DDL did not — now asserts
  against a REAL analyzer-build-tree edit rather than a hand-built literal, which
  is strictly stronger than what it replaces.
- MIGRATION.md quoted a log line the code cannot emit; it was written before the
  placeholder changed.
- Restored the rationale on the `capabilities` docstring, which a previous pass
  replaced with its consequence — leaving a maintainer reading "duplicated by
  hand" as a wart to fix by importing, which is what the original forbade.
- Marked the `isIncremental` conjunct as belt-and-braces: `!options.force`
  short-circuits before it, so it cannot decide anything.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* feat(analyze): force a rebuild when the vector column width changes

`CodeEmbedding.embedding` is declared `FLOAT[EMBEDDING_DIMS]`, resolved from
`GITNEXUS_EMBEDDING_DIMS` at module load. Nothing gated it. Flip the variable on
a same-commit clean tree and no guard fired at all: `alreadyUpToDate` returned
over a `FLOAT[384]` table while the process embedded at 768. The only reaction
anywhere discards the embedding CACHE and re-embeds — into a column whose type it
never revisits.

This predates #2798; `INCREMENTAL_SCHEMA_VERSION` never covered dims either. It
surfaced because the fingerprint work had to reason about why `EMBEDDING_SCHEMA`
must stay OUT of the digest: its width is environment-derived, so folding it in
would make the same build disagree with itself and thrash rebuilds. That
exclusion is correct, and it leaves the width needing its own guard.

Modelled on `cjkSegmentation`, the closest sibling: an env-resolved scalar
stamped at write time and compared by a small exported predicate that forces on
mismatch. `embeddingDimsMismatch` sits in core/lbug/schema.ts beside
`EMBEDDING_DIMS`, so the query side can adopt it without importing the analyze
pipeline — mcp/local/local-backend.ts already warns on a cjkSegmentation
disagreement and has the identical claim here, since the query path embeds at the
live width against a table of unknown width with no validation at all today.

ABSENCE IS NOT A MISMATCH, deliberately. Forcing on it would be dead code:
`embeddingDims` and `schemaFingerprint` ship together, and a missing fingerprint
already forces exactly one rebuild — which is where this stamp lands. Absence
also carries no signal here, unlike the fingerprint: a missing fingerprint means
"DDL this build cannot vouch for" and ships WITH a DDL change, whereas a missing
dims stamp means only "written before the field existed", and that run's table
agreed with that run's width. Drift requires the env to change, which absence
says nothing about. The `cjkSegmentation` trick of folding absence into the
default was unavailable — there is no width that is safe to assume for an
existing table — so the stamp is instead written unconditionally, giving absence
exactly one meaning. Malformed values are not grandfathered: null, '384', NaN and
objects all read as a mismatch and err toward a rebuild.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* feat(mcp): warn when the served index's vector width differs from the query embedder's

The analyze side now forces a rebuild when the vector column width changes. The
query side had no equivalent: a serving process embeds a query at its own width
and searches a table whose width was fixed when the index was built. Disagree and
the user gets wrong or missing semantic results with nothing explaining why.

Mirrors the cjkSegmentation drift warning immediately above it — same warnings[]
array, same per-query recomputation, agent-visible in the tool response, and it
warns rather than refuses. A width mismatch degrades the semantic lane only;
keyword results are unaffected, so `partial` is deliberately not set.

Compares against `getEmbeddingDims()` — the width the query embedder actually
produces — NOT schema.ts's `EMBEDDING_DIMS`. The two diverge exactly when
GITNEXUS_EMBEDDING_DIMS is set on a server that embeds LOCALLY: the query path
ignores that variable and embeds at 384, so comparing against the env-derived
constant would report drift on a lane that works fine. The recorded width is what
the vector CAST actually binds.

`embeddingDimsMismatch` is imported from core/lbug/schema.js rather than
restated, so "absent is not a mismatch" cannot drift between the analyze and
query sides. That predicate was placed in schema.ts precisely so this consumer
could reach it without importing the analyze pipeline.

Two gates keep it quiet when it would be noise: it fires only for a repo where
this process actually produced a query vector, so an index analyzed without
--embeddings (or a server whose embedder is unavailable) never carries it. An
untrusted recorded value — meta.json is schema-less JSON — is reported as "an
unrecognized width" rather than echoed.

`loadMeta` is hoisted out of the neighbouring try so both diagnostics share one
read and an invalid GITNEXUS_FTS_CJK_SEGMENTATION cannot take this one down with
it.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(identity): detect an npm-linked dev dependency the specifier cannot see

`isLocallyLinkedSpecifier` admits a devDependency whose SPECIFIER is
checkout-local. `npm link <pkg>` leaves the specifier a registry range while the
node_modules entry symlinks to a checkout — locally linked, invisible to a
specifier check, so a semantic-only edit there still moves neither digest.

The obvious placement is unaffordable, measured rather than assumed: probing
every dev-only name inside collectRuntimePackages costs 1998 resolutions, not
the ~8 it looks like, because dependencyNames runs for every package in the BFS
and published tarballs retain their devDependencies. Persisted path guards go
2221 -> 11050 (+398%), and every guard is re-probed on each warm validation —
the path `status` takes.

Scoped to the root package instead. The declared-intent half is untouched and
still enumerated everywhere: it alone can emit the `<missing>` edge for a
declared link whose checkout is absent, where resolution returns null and cannot
distinguish that from an uninstalled dev tool. The new resolved-location half
runs only when `parent.root === packageRoot`, resolves through the existing
resolver so its path guards are recorded, and admits a name iff the realpath'd
root carries no node_modules segment.

Bounded against mis-fire by EXPANSION. "Not under node_modules" is a proxy for
"checkout-local"; under a relocated pnpm virtual store every dev dep passes it
and the whole dev tree folds into the receipt — against limits that THROW, so a
legitimate install would abort. Measured here: uncapped, that shape takes
259 -> 347 packages and 2250 -> 3786 guards. The cap admits at most four and
DROPS THE WHOLE CHANNEL on overflow rather than an arbitrary prefix, because the
abort comes from the transitive payload of whichever trees get folded in — four
of a mis-fired thirteen is still unbounded, and a sorted-prefix receipt would be
arbitrary. Overflow falls back to the specifier-only receipt that ships today.

Cost on this install: 259 packages unchanged, 13 dev names resolved, guards
2221 -> 2250 (+29, +1.3%). Verified against the real implementation, not just a
replay: validation guards 16295 -> 16324, packageCount and artifactCount
unchanged, and `dependencyRuntime.digest` byte-identical — so this forces no
re-analysis for anyone.

Each test fails on the defect it targets: disabling the channel kills the
npm-link and cap cases; dropping the root-only scope makes the differential
guard-count case fail at 2.8x guards; removing the specifier half kills the
`<missing>` case.

Refs #2798

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Gergo Magyar <gergomagyar0@gmail.com>
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-03 15:04:30 +01:00
Gergő Magyar
561f913a32
fix(embeddings): retry unparseable 200 responses and survive partial embedding failures (#2790) (#2795)
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* fix(embeddings): retry unparseable 200 responses and survive partial embedding failures (#2790)

A long-running embedding job against an OpenAI-compatible endpoint could lose
hours of work to a single transient glitch, then refuse to recover on the next
run. Four defects compounded:

1. An HTTP 200 carrying a truncated or non-JSON body was never retried.
   `classifyOutcome` treats any 2xx as success, and the `resp.json()` parse ran
   after `resilientFetch` had already returned, so the parse failure surfaced as
   a terminal error. Measured: a 503 got 3 attempts, a garbage 200 got 1.

   The parse and the response-shape check now run inside the `fetchImpl`
   callback, so a bad body is classified as a retryable failure and gets the
   same backoff as a 5xx. This also stops a garbage 200 from calling the circuit
   breaker's `recordSuccess()`, which previously erased accumulated failures and
   meant an endpoint alternating 5xx and garbage-200 could never trip it.

2. One failed `embedBatch` sub-batch aborted the entire pipeline. Failures are
   now tolerated: the sub-batch's node ids are collected and all of their
   embedding rows are deleted, so those nodes hold zero rows and are re-embedded
   later. Deleting rather than keeping partial rows is deliberate — chunk arrays
   are flat over a 16-node batch and sliced by 8, so a node's chunks can straddle
   a sub-batch boundary, and surviving rows carry the current content hash. The
   hash maps collapse per-chunk rows last-row-wins, so a partially embedded node
   would read as fresh forever and never regenerate its missing chunks.

   A run that fails 5 sub-batches in a row still aborts, and rethrows the first
   error of the streak rather than the last: after 3 failures the circuit breaker
   opens, so later errors degrade into "circuit open, retry in 30s" while the
   first still names the real defect.

3. The Phase 5 `embeddingCount === 0` fail-fast could not tell "wrote nothing"
   from "could not ask" — the count query's catch was silent. The count is now
   tri-state and only a known zero after real work is fatal. A non-numeric count
   previously bypassed the gate entirely, because `Number()` returns NaN and
   `NaN === 0` is false, and then serialized as `embeddings: null`. An unverified
   count no longer certifies `capabilities.vectorSearch.status`.

4. `saveEmbeddingCheckpoint` wrote a completion-shaped meta: it advanced
   `lastCommit`, wrote the new `fileHashes` and cleared `incrementalInProgress`.
   The first checkpoint window fires before a single embedding exists, and on a
   full rebuild the graph is still in a staging database that a crash discards.
   The next run then diffed against the advanced hashes, saw no changes and
   preserved the old graph — the "skipping wipe" symptom in the report. It now
   re-reads meta and replaces only the checkpoint, matching what the server
   endpoint already did.

A partially failed run keeps its checkpoint with the failed ids in
`pendingNodeIds`, so the next plain `analyze` regenerates them through the
existing resume path. Clearing it would have been silent data loss: a plain run
derives `shouldGenerateEmbeddings: false` once embeddings exist, so the pipeline
would never have run again. The old crash-and-abort self-healed only by accident,
via the checkpoint its crash left behind. `gitnexus status` reports the index
incomplete until the nodes recover, and `--drop-embeddings` still abandons them.

`POST /api/embed` is the pipeline's other caller and was discarding the result,
reporting "Embeddings complete" for a partial run. It now persists the pending
ids and reports the run as failed with the underlying endpoint error.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(embeddings): abort a run whose sub-batch failure ratio is too high (#2790)

The consecutive-failure ceiling only catches a total outage, because any
successful sub-batch resets it. An endpoint under load shedding that alternates
success and failure never trips it, so the run walks the whole corpus, deletes
every failed node's rows and exits 0 having dropped a large fraction of the
index. The retained checkpoint made that visible in `gitnexus status`, but a run
that drops a quarter of the corpus should tell the operator to fix their
endpoint, not leave them to notice a status flag.

Adds a cumulative guard: abort once more than 25% of attempted sub-batches have
failed, evaluated as the run progresses and gated behind a floor of 20 attempted
sub-batches. The shape follows Resilience4j's circuit breaker (failure rate plus
a minimum-sample floor) because it is the only one of the surveyed designs that
answers the small-repo case — a three node repo can fail one sub-batch and never
accumulate enough sample for a ratio to mean anything. The rate sits below a live
traffic breaker's 50% because a batch indexer's job is to index the whole corpus
rather than serve degraded traffic, and above Hadoop's single-digit
`failures.maxpercent` because tolerating transient hiccups is the point of the
change this follows.

The guard reuses the existing break-then-cleanup path, so the failed batch's
DELETE still runs before the rethrow, and it wraps the retained first-error-of-
streak rather than inventing a new one, so the message names both the ratio and
the underlying endpoint failure.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(server): record the embedding count after /api/embed so the next analyze cannot wipe it

`POST /api/embed` generated embeddings and wrote them to the database but never
wrote `stats.embeddings` into meta.json. Its checkpoint writer replaced only
`embeddingCheckpoint`, and the finalize write folded in nothing else.

So a repo embedded purely through the server kept whatever count the last CLI
`analyze` stamped, which is 0 for a repo analyzed without embeddings. The next
CLI run read `existingEmbeddingCount = 0`, `deriveEmbeddingMode` returned
`shouldLoadCache: false`, and `gitnexus analyze --force` wiped the database with
no cache load. Every server generated embedding was silently destroyed, with no
warning — the user just lost semantic search.

The route now measures the live count with the same query the CLI uses and folds
it into both meta writes. The measurement is tri-state and deliberately never
falls back to 0: an unverified count is written as absent rather than as zero,
because a wrong-low value is exactly what arms the wipe. It is taken after
`flushWAL()` and inside `withLbugDb`, so it describes durable rows and the
connection is still open. A partial run records its honest count too, alongside
the retained checkpoint, so the next CLI run preserves the partial index instead
of discarding it.

Found while working #2790; not part of that issue.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(embeddings): retry short 200 bodies and stop laundering body-phase timeouts

Two gaps in the #2790 retry fix, both found by review.

A 200 carrying `{"data": []}` or fewer vectors than inputs passed the
in-`fetchImpl` shape check, because `every(isEmbeddingItem)` is vacuously true
for an empty array. `resilientFetch` then classified it `success` and called
`recordSuccess()`, erasing the outage signal, and the cardinality check in
`httpEmbed` threw terminally one attempt later. That is exactly the pair of
properties #2790 was filed about, still broken for this body shape — and worse
than before the fix, since the pipeline now tolerates the error by deleting
those nodes' rows instead of aborting loudly. The count check moves inside the
retried callback; the outer one stays as a backstop.

The `.json()` catch also swallowed every rejection, not just parse errors.
`AbortSignal.any([caller, timeout])` is wired to the body stream, so a stalled
body rejects with a DOMException — which, wrapped in a plain Error, defeated
`classifyOutcome`'s terminal-network test. Measured: the same TimeoutError got
3 attempts and "unparseable response" when raised during the body read, but 1
attempt and "timed out after 180000ms" when raised by fetch itself, and three
such sub-batches opened the process-global breaker that `recordNeutral()`
exists to protect. Abort-like DOMExceptions are now re-raised unchanged.

The dimension check stays outside the loop deliberately: it validates against
`config.dimensions ?? DEFAULT_DIMS`, not the request-dimensions argument, and a
width mismatch is a configuration error where retrying only triples latency and
books failures against a healthy endpoint.

Adds the negative assertion the review found missing: response body text must
never reach the user-facing error string.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(embeddings): scale the sub-batch failure-ratio floor to the run

The cumulative guard needed 20 attempted sub-batches before a failure rate could
abort anything — roughly 160 chunks, or ~80 embeddable nodes at the default
subBatchSize of 8. A 50-node repo whose endpoint sheds every other sub-batch
fails half of them and still exits 0: the ratio guard is below its floor, and
every intervening success resets the consecutive ceiling.

The floor was a good choice for a first run over a small repo, where one failure
out of one sub-batch is 100% and means nothing. The defect is that every resume
run has that shape by construction — its node set is only the pending ids — so
the guard was structurally off in the one run whose entire purpose is retrying
against the endpoint that already failed.

The floor is now sized to the run: clamp(ceil(totalNodes / 16), 5, 20). The
lower bound keeps the case the flat floor protected; the upper bound preserves
today's behavior above 320 nodes and avoids a proportional-only floor perversely
weakening the guard at scale, where a sixteenth of a 20k-node repo would be 1250
sub-batches of damage before a rate could fire. Resilience4j can use a constant
minimumNumberOfCalls because a breaker sits on an unbounded call stream; a batch
indexer has a finite budget, so a constant can exceed the whole run.

The ratio is still evaluated only inside the catch. That is already its local
maximum — both counters have just incremented — so sampling more often would
only ever observe lower ratios.

Also: a failing cleanup DELETE no longer swallows the abort, which was
discarding the retained first-error-of-the-streak that names the real endpoint
fault; `ceilingError` is renamed `abortError` since it carries the ratio abort
too; and three `{ error }` log keys become `{ err }` (#2114 — an arbitrary key
serializes to `{}`, losing message and stack).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(analyze): one tri-state embedding counter, and stop partial runs wedging later runs

The tri-state count doctrine this branch introduced was applied at two of its
three CLI sites, and the two implementations that were meant to mirror each
other had already drifted.

`measurePersistedEmbeddingCount` moves to `core/embedding-count.ts` — beside
`embedding-mode.ts`, with the same no-native-imports property, and outside
`core/embeddings/` so the lazy-embeddings convention (#2370) still holds. All
three call sites now share it.

  - The mid-run `onCheckpoint` counter ran the query bare. A throw there — DB
    busy, connection closed, read-only, the VECTOR DML lock (#2623) — rejected
    the callback out of `runEmbeddingPipeline` and killed the analyze before
    Phase 5 could apply the tri-state that exists for exactly this case. A
    non-numeric cell wrote `stats.embeddings: null` to disk mid-run.
  - Phase 5 used `?? 0` while the server used `?? Number.NaN`, under a comment
    asserting both measured the field the same way. `Number.isFinite(0)` is
    true, so a no-row answer became a *measured* zero and hard-failed a run
    whose embeddings had all persisted.
  - The unknown-count fallback read `existingMeta`, assigned once at run start,
    so it republished the pre-run figure over the fresher count the terminal
    checkpoint had already written. With a prior count of 0 that armed the wipe
    chain: hasExisting false, shouldLoadCache false, and the next --force
    discards live embeddings. It now re-reads the latest on-disk meta, and an
    unverifiable count retains a recovery marker instead of clearing it.

A completed-but-partial run also planted a landmine. Its checkpoint is stamped
with the run's embedding identity, so a later plain `gitnexus analyze` from a
hook, a CI job, or a shell without GITNEXUS_EMBEDDING_URL resolved provider
'local' and threw before any phase ran — after an exit-0 run, where previously
only a visible crash left that state. `--force` did not help: the resume gate
inspected only `--drop-embeddings`.

`RepoMeta.embeddingCheckpoint` gains `kind` to tell the two situations apart.
An 'interrupted' marker (or one with no kind, so markers already on disk keep
the stricter path) still fails closed — its nodes may be half-written, and
resuming under a foreign model would mix vector spaces. A 'partial' marker
names nodes the pipeline already deleted to zero rows, so nothing is at risk: an
identity mismatch drops the pending set with a warning and continues. `--force`
now discards a checkpoint, and `attempts` bounds the retry at
EMBEDDING_RESUME_MAX_ATTEMPTS (3, matching the HTTP embedder's and the WAL
driver's existing per-operation budgets) so a node the endpoint deterministically
rejects converges instead of keeping the repo incomplete forever.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(server): close the SSE stream on terminal job status, not a progress phase

A tolerated partial run reached SSE clients as a clean success — a regression in
this branch's own claim that /api/embed reports a partial run as failed.

The pipeline emits `phase:'ready'` unconditionally before returning, including
when it dropped nodes. The route mapped that to `'complete'`, and
`mountSSEProgress` treated a terminal-looking *progress phase* as terminal:
write the event, `res.end()`, `unsubscribe()`. The route's own
`updateJob({status:'failed'})` then fired into a stream with no listener, and
the web app had already shown "ready". Before this branch the pipeline threw,
which produced `phase:'error'` and did reach the client. Pollers on
GET /api/embed/:jobId were unaffected, so the two consumers disagreed.

Terminality is a property of the job, so the relay now asks the job. Remapping
`ready` alone would have left the trap armed: the `error -> 'failed'` mapping
has the identical shape and would emit `event: failed` with `error: undefined`
before the catch block fills the message in. `ready` is additionally remapped to
`finalizing` so a poller no longer sees `status:'analyzing'` next to
`progress.phase:'complete'`. The single-terminal-event property (#2264) is
preserved on both the clean and partial paths, and /api/analyze is unaffected —
its terminal progress phase is 'done', never 'complete'.

`AnalyzeJob` gains an optional `partial` payload so a client can tell a partial
run from a total failure without a new status member; it is absent on every
other job, so existing payloads stay byte-identical. Consuming it in
gitnexus-web is left to that app's owner — today it renders both as the same
red retry chip.

`resolveEmbedRunOutcome` moves to `embed-run-outcome.ts` and `mountSSEProgress`
to `sse-progress.ts`, both free of Express/LadybugDB/MCP imports, and the local
count copy is replaced by the shared `core/embedding-count.ts`. Reaching three
pure functions previously meant importing the whole server: measured at ~20s
against a 30s test timeout, with one observed timeout failure. That file is now
1.6s.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* docs: document the partial embedding index and its recovery

A run can now finish exit 0 with a partial embedding index, which neither
operator doc described.

GUARDRAILS' "Embeddings vanished after analyze" Sign keys its trigger on
`stats.embeddings` being 0 and lists "the only ways to end up at zero". A
partial run stamps an honest non-zero count and sets `embeddingCheckpoint`, so
the operator's actual symptom is `incompleteReasons:
["embedding-checkpoint-pending"]` — a state that Sign cannot match. Adds a Sign
for it and drops the exhaustive framing from the existing one.

RUNBOOK gains the recovery path: a plain `gitnexus analyze` is correct and needs
no flag, because a retained checkpoint forces generation for the pending nodes
regardless of flags. Also corrects two stale claims — that `stats.embeddings` is
always freshly measured (it can carry forward when the count query cannot
answer, which is why `capabilities.vectorSearch.status` is the certified read),
and that later analyzes must always pass `--embeddings` or lose their vectors,
which contradicts Non-negotiable 5.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* refactor(embeddings): one owner for the checkpoint record and the abort predicate

Cleanup pass over the #2790 review fixes. No behavior change except where
noted; the two exceptions are both cases where the code was lying to the
operator or to the other half of itself.

The previous pass extracted `core/embedding-count.ts` because two hand-copied
bodies of "measure the embedding count" had drifted inside a single change. It
then created a second pair of hand-copied publishers — of
`RepoMeta.embeddingCheckpoint` — and those had drifted too: the CLI armed the
attempt counter only after clearing its identity gate, the server derived it
from the resumed marker alone. Only one of the two READERS implemented `kind`
at all, so a 'partial' marker written by `gitnexus analyze` and resumed through
POST /api/embed still hit the permanent wedge `kind` exists to remove.

`core/embedding-checkpoint.ts` now owns the record: `checkpointKind` (the one
home for absent-means-interrupted), the three minters, `nextAttemptCount`, and
`decideEmbeddingResume`, which both gates route through. Five mint sites and
two resume gates become one implementation each.

`resilient-fetch.ts` exports `isTerminalNetworkError` and `classifyOutcome`
calls it, replacing a caller-side copy of the same DOMException test whose
docstring promised it "mirrors classifyOutcome exactly" — an invariant enforced
by prose, where a divergence silently reverts body-phase timeouts to being
retried three times and charged to the shared breaker.

The ratio-guard floor now divides by the run's actual `subBatchSize` instead of
a constant 16 that assumed the default of 8. At `subBatchSize: 32` the old
formula demanded more sub-batches than the run contains, leaving the guard
structurally off — the exact failure the scaled floor was introduced to fix,
and sub-batch size is tuned mainly for the flaky endpoints it protects.

Two operator-facing corrections:

  - The count-recovery marker was stamped `kind: 'partial'` with an empty
    pending set, so `gitnexus status` reported "N node(s) lost their embeddings"
    where N is zero. It gets its own kind and its own incomplete reason.
  - `decideEmbeddingResume` initially keyed its skip-the-identity-gate branch on
    an empty pending set, assuming that meant the count-recovery marker. It does
    not: `onCheckpoint` mints an 'interrupted' marker with no pending nodes
    after every post-window save. That silently cleared an interrupted marker
    under a foreign provider instead of failing closed. Keyed on `kind` now,
    with a regression test.

Also: `isTerminalJobStatus` adopted at the seven sites that still hand-copied
it, including the one gating the single-terminal-event emit; `mountSSEProgress`
re-export dropped and `server-sse-payload.test.ts` repointed at the extracted
module, which takes it from 24.60s to 0.408s — the test that motivated the
extraction was still paying the cost it was meant to remove; the count-mismatch
message and the SSE test harness deduplicated; per-batch error strings made
lazy (~75k needless `new URL()` per large run); `retryable: true` dropped as a
field that can never be false; ~110 lines of restated rationale reduced to
pointers at their canonical home.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Gergo Magyar <gergomagyar0@gmail.com>
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-02 20:43:59 +00:00
FAll
2cfbc4a259
feat(spring): build bean candidate inventory (#2494)
* feat(java): inventory Spring bean candidates

* fix(java): fail closed on Spring annotation shadowing

* fix(java): resolve Spring beans after imports

* fix(java): remove stale bean extraction path

* style: satisfy locked Prettier version

* fix(spring): address PR review findings

* feat(spring): share bean inventory across Java and Kotlin

* fix(spring): gate bean inventory analysis completeness

* fix(kotlin): avoid reloading cached scope source

* chore(autofix): apply prettier + eslint fixes via /autofix command

---------

Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-07-20 09:28:23 +01:00
Gergő Magyar
8b5057f325
feat(skills): GitNexus Engineering Tool Kits (#2566)
* feat(skills): add ce-plan — GitNexus+PDG implementation-planning skill

Adds .claude/skills/ce-plan: a planning-only skill that builds
implementation-ready plans from GitNexus graph navigation (query/context/
impact/trace), bounded statement-level PDG slices (pdg_query, impact
mode:pdg, explain), and targeted source verification, with a context
ledger to prevent repeated reads and a machine-readable implementation
context pack (stable contract for a future ce-implement). Whitelisted in
.gitignore and registered in AGENTS.md and CLAUDE.md outside the
auto-managed gitnexus block.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(skills): apply ce-plan validation findings (tool contract, consistency, conventions)

Tool contract: impact mode:'pdg' shape now includes the schema-required
direction param; CDG branch sense documented as the result 'label' field
(reason is cypher/raw-edge only); explain caveats corrected to its real
false-negative classes (cross-function TAINT_PATH is modeled).

Consistency: PDG slice homed in working memory (ledger keeps one-liners);
depth knob defined and category-overrides-baseline ordering stated;
call_depth (consumed by nothing) and content-hash bookkeeping dropped;
Never section folded into Hard rules; Phase 3 deduplicated to a pointer;
allowed-repeat escalations defined; budget/discard accounting clarified;
verification-commands gathering added to Phase 4; open_questions added to
the context pack.

From scenario runs: plans now pin the verified-at HEAD commit and index
freshness in a header, tag claims [verified]/[graph]/[inferred]/[assumed],
quote load-bearing tool output, prefer pre-hook-carrying npm scripts, and
support an out:<path> destination override; output path defined as the
Phase 1 target repo root.

Conventions: AGENTS.md 1.9.0 / CLAUDE.md 1.4.0 changelog rows + metadata
bumps; future ce-implement qualified as future.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(skills): rename ce-plan → gitnexus-plan; add cross-CLI (Codex) entrypoints

Renames the skill dir, frontmatter, output filename convention, plan H1
(GitNexus Engineering Plan), the future executor handle
(gitnexus-implement), the .gitignore whitelist entry, and all
AGENTS.md/CLAUDE.md references. Follows the pr-swarm-review cross-CLI
pattern: SKILL.md is the canonical CLI-neutral spec, AGENTS.md § Engineering
planning is the Codex/any-agent entrypoint, and the README documents the
optional user-level ~/.codex/prompts/gitnexus-plan.md slash command plus an
invocation matrix. Skill prose de-branded from Claude Code (agent-neutral
verification layer).

Also fixes two post-review README contradictions: the anti-reread claim now
names the ledger's allowed escalations, and 'read-only by contract' is now
'planning-only' (the skill writes exactly one repo file — the plan); the
scope-creep rule and template §12 now agree on where deferred follow-ups
land. Drops the stale plugin-collision limitation.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(skills): document Codex user-level install path for gitnexus-plan

Codex discovers SKILL.md skills from ~/.agents/skills (same path the other
gitnexus-* skills install to); README now documents the cp install plus the
optional ~/.codex/prompts slash-command file, with the prompt body preferring
the repo copy and falling back to the user-level install.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(skills): gitnexus-plan freshness gate + active PDG-layer refresh

Freshness is now a Phase 1 gate, not advisory: under the default
freshness:strict, a stale index is refreshed once per planning session via
node .gitnexus/run.cjs analyze --index-only (appending --pdg when the task
will reach the PDG phase), then the context resource is re-read. A missing
PDG layer likewise triggers the one permitted --index-only --pdg refresh
and re-probe instead of a passive recommendation. freshness:accept (or a
failed/impractical refresh) preserves the old behavior: plan on the stale
graph, source-weighted, labelled in the plan header. --index-only is the
load-bearing flag choice — it suppresses all file generation, so the
planning-only contract holds (only the .gitnexus store changes). Ledger
gains an index_refresh record; plan header states fresh / refreshed /
refresh-skipped-with-reason.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(skills): gitnexus-plan runner build check before freshness refresh

When the target repo builds the analyzer from its own source (bin → dist/
mapping, as gitnexus/ does), the Phase 1 freshness gate now verifies dist/
is current before running the analyze refresh — rebuilding via the
package's build script when any analyzer source file is newer than the
built entrypoint — and prefers that freshly built CLI. Otherwise a stale
dist re-indexes with outdated extraction logic and the 'fresh' index lies.
Rebuilds are recorded in the ledger's index_refresh; the PDG-phase refresh
inherits the same check.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(skills): add gitnexus-work executor and gitnexus-lfg pipeline

gitnexus-work executes a gitnexus-plan as verified atomic commits: consumes
the §11 implementation_context pack, drift-checks the plan's evidence pin
against HEAD, re-verifies assumptions before relying on them, runs impact
before every symbol edit and detect_changes before every commit (repo
mandates), builds tests from the plan's scenarios, and routes structural
drift back to gitnexus-plan Deepen mode instead of coding around it.

gitnexus-lfg is a thin orchestrator: gitnexus-plan → blocking user gate
(deepen / proceed / stop, deepen loops allowed) → gitnexus-work → review
via the existing gitnexus-pr-review skill (open PR, else branch diff vs
default). One bounded fix cycle for review findings; never pushes or opens
a PR on its own.

gitnexus-plan gains a Deepen mode (re-run freshness gate, escalate to
depth:deep, re-verify graph/inferred/assumed claims toward verified,
rewrite the same file); its 'future gitnexus-implement' placeholder is
retired in favor of gitnexus-work. Registered via .gitignore whitelists,
AGENTS.md 1.10.0 (section renamed to Engineering planning & execution),
CLAUDE.md 1.5.0.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(skills): apply cross-skill review findings to the gitnexus skill family

Two P1s: gitnexus-plan Deepen mode now re-anchors before re-pinning
(diffs the old evidence pin over every [verified]-claim file and re-reads
or downgrades before the header moves — moving the pin without this
laundered stale claims as verified); the index-refresh budget is stated
once in Phase 1 (one --index-only refresh plus at most one Phase 3 --pdg
upgrade per session, Deepen = its own session) with ledger and pdg-slice
deferring to it.

Contract fixes: gitnexus-work's drift check now covers every file the
pack cites (not just files_to_modify) and parses the full pack incl.
primary/related symbols and acceptance_criteria (walked in Phase 4
alongside §13); a pre-completed check skips §7 steps already landed and
Deepen gains a reconcile-execution-state step, closing the mid-execution
route-back loop; pack assumptions must name what to check and how.

lfg: Lane 4 passes the merge-base to detect_changes compare (two-dot
diff misattributes upstream commits when default advanced), branch-diff
is the stated normal case, oversized review findings route to the plan
gate instead of overflowing direct mode, the one-fix-cycle cap is
explicit on re-run, and headless runs end at the plan gate with the plan
as deliverable. work: blank mode narrowed to *gitnexus-plan*.md with a
re-execution guard, direct-mode discipline spelled out, branch
meaningfulness defined against the plan slug, and the plan document is
committed as the branch's docs commit (review diff includes it).
Planning-only contract now names the dist/ rebuild as the second
permitted state change; Phase 5.1 names the four claim tags; stale
AGENTS.md anchors fixed.

Known latent issue left untouched: gitnexus/gitnexus-pr-review pairs a
three-dot example with a two-dot detect_changes compare — that skill is
also shipped by the plugin, so fixing it here would drift the copies;
lfg compensates by passing the merge-base.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(skills): ship the engineering skill family with the gitnexus package

npm i -g gitnexus users now get gitnexus-plan / gitnexus-work / gitnexus-lfg:
the three skills are added to gitnexus/skills/ in directory form (SKILL.md +
references/), which installSkillsTo already enumerates dynamically and copies
recursively to every editor target (~/.agents/skills for Codex, Cursor,
OpenCode, Qoder, ...) on gitnexus setup — uninstall enumerates the same root,
so removal stays clean. The Claude Code plugin channel
(gitnexus-claude-plugin/skills/) carries the same copies plus the standard
per-skill mcp.json.

Global-install support in the skill text: gitnexus-plan Phase 1 now resolves
the analyzer runner explicitly — node .gitnexus/run.cjs analyze when the
project has a runner, else gitnexus analyze (installed CLI), else
npx gitnexus analyze — and all analyze mentions route through it, satisfying
the skills-steering policy (#1939/#1945) which sweeps the plugin copies.

New drift guard test/unit/shipped-skills-sync.test.ts asserts the npm and
plugin copies stay byte-identical to the canonical .claude/skills/ family
(plugin = canonical + mcp.json), same discipline as run.cjs ↔
resolve-invocation.ts. skills-steering + shipped-skills-sync: 11/11 green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(eval): workflow_bench — measure the skill workflow's token savings

Benchmarks gitnexus-plan → gitnexus-work against a baseline agent
(--disallowedTools Skill) on identical tasks, in fresh detached worktrees,
using real headless Claude Code sessions; every number comes from the CLI's
--output-format json usage report (field names validated against a live
2.1.207 session). Reports per-arm medians (input/cache/output tokens, cost,
wall time, turns), a savings row, and resolve status from a per-task verify
command — savings on failed tasks are flagged, not celebrated. Per-task
setup hook prepares fresh worktrees (deps); --permission-mode
bypassPermissions (default) lets sessions run unattended in the throwaway
trees.

Free-model support: --base-url/--auth-token/--model route headless sessions
through any Anthropic-compatible endpoint; free-model.litellm.yaml is a
ready litellm-proxy template for OpenRouter :free variants or local Ollama,
so benchmarking burns no paid tokens (README documents rate limits and the
small-model skill-following caveat).

Harness validated end-to-end with a stub CLI (worktree lifecycle, both
arms, plan→work chaining, verify, aggregation, report) and 4 pytest units
for the pure aggregation/savings/report helpers. AGENTS.md 1.11.0.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(eval): record first workflow_bench calibration run

Trivial-task calibration (add -V alias): both arms resolved; workflow arm
~4.3x baseline cost — the documented overhead-dominated regime, recorded so
the regime boundary is empirical rather than asserted.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(eval): workflow_bench scenario matrix — arm variants, task classes, churn

Ground-base measurement across scenarios: tasks.scenarios.yaml spans four
labeled classes (trivial → investigation-bug → investigation-feature →
cross-module) with deterministic verifies (prescribed test files). New arms:
workflow_direct (gitnexus-work direct mode — the middle option that locates
the routing boundary lfg's gate and work's triage encode) and baseline_nomcp
(no skills AND no graph tools — separates workflow-discipline value from
GitNexus-tool value; off by default). Records now carry task class and diff
churn (files/+ins/−del vs the starting commit) as an over-engineering proxy;
the report renders a class column and per-arm savings rows vs baseline.
5 pytest units + stub-CLI e2e of the full three-arm matrix.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(eval): record workflow_bench ground base; fix churn measurement bias

Ground base (3 classes x 3 arms, n=1/cell): every arm resolved every task —
pass/fail quality saturates at this difficulty, making the comparison pure
cost. Full plan→work never amortized its ~$9-11 fixed cost on tasks a
baseline finishes in ≤35 turns (−211% to −333% cost); workflow_direct sits
near baseline (−15% to −55%, once faster wall) with more test coverage.
Routing implication recorded: direct mode/plain agent below this scale,
full workflow for cross-module / multi-session / plan-as-deliverable work.
The cross-module cell and multi-run variance are the next measurements.

Churn fix: git add --intent-to-add -A before diffing (arms that never
commit no longer undercount new files) and :(exclude)docs/plans (the
committed plan doc no longer inflates workflow churn); this run's churn
numbers predate the fix and are omitted from the recorded table.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* perf(skills): cost-optimize the workflow from measured ground base

Every optimization targets a measured fixed-cost component
(eval/workflow_bench ground base: workflow arm −211% to −333% vs baseline,
all tasks resolved):

- Plan form is category-priced: compact form (core sections w/ § anchors
  preserved, ≤80 lines excl. pack, mini-pack subset of the context pack)
  for narrow/default categories; the full 13 sections only for deep work
  (refactor/security/performance/concurrency/architecture). A compact plan
  outgrowing its cap reclassifies to full rather than overflowing.
- Freshness gate is category-priced: compact categories default to accept
  (source-weighted, refresh only when a graph claim becomes load-bearing);
  strict stays the default for full-plan categories — the rebuild+re-index
  was the largest single fixed cost.
- Turn economy: per-category tool-call budgets (~10 to ~45; architecture
  uncapped); budget exhaustion routes open questions to §12 instead of
  more digging.
- gitnexus-work fast path: HEAD == evidence pin → skip all citation
  re-reading (the pin's entire point); mini-pack fields tolerated.
- lfg Lane 1 boundary triage: tasks below the measured ~35-turn boundary
  get offered gitnexus-work direct mode before the plan lane is spent.

Copies re-synced (npm skills/, plugin, ~/.agents); steering + sync guards
green. Re-measurement of the workflow arm follows to verify the numbers
actually improve.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(eval): record optimization re-measurement — inv-bug workflow cell −20% cost

Same task, same conditions, post-830a0459 skills: $14.56→$11.70 (−20%),
83→72 turns, cache_read −24%; verified in-transcript that the compact form,
turn budget, and skipped rebuild/re-index all fired. Wall +15% from a work-
session test-debugging tail (n=1 variance). Regime unchanged (~3.5x baseline
on this class) — routing rule stands.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(eval): per-arm clone isolation — worktree ref-namespace leak contaminated an arm

The cross-module workflow_direct cell reported an impossible 28-turn solve
with churn byte-identical to the workflow arm: git worktree add shares the
repo's ref namespace, so the workflow arm's slug branch (created by
gitnexus-work Phase 2) survived worktree removal and the direct arm found
and adopted the completed work. Arms now get isolated git clone --shared
copies (object store via alternates, refs clone-local — agent branches and
stashes die with the clone; origin/<ref> fallback for non-default refs).
Leaked branch deleted; baseline arm verified clean (0 branch references in
its transcript); cell marked invalidated pending re-run.

Records the valid cross-module cells: workflow $18.32 vs baseline $18.03
(premium −1.6%, vs −211%..−333% on smaller classes) — fixed costs amortize
at this scale, with a less destructive diff and a plan artifact as bonus;
resolve rate still tied. Churn fingerprinting is what caught the
contamination — noted in the README as an integrity check.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(eval): complete cross-module cell — direct mode wins 47% cost / 56% wall

Clean clone-isolated re-run: workflow_direct resolved the hardest class at
$9.53/52 turns/15m vs $18.03/98/34m baseline and $18.32/107/37m full
workflow. The measured story across all four classes: the execution
discipline (gitnexus-work) is the consistent sweet spot and delivers real
token savings on hard tasks; the planning pass buys its artifact, not
same-session savings. Resolve rate tied everywhere (n=1/cell caveat).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(eval): add trajectory-gated skill evolution (#2431)

- Pair prompt candidates with incumbent workflow arms
- Gate promotions on pinned-model quality and efficiency
- Expire router evidence and document its lifecycle

* fix(eval): allow pr-review skill candidates

* feat(skills): rename and generalize GitNexus review

* feat(eval): external-comparator and review arms for workflow_bench

- ce_workflow / ce_workflow_direct: compound-engineering ce-plan/ce-work
  arms prompted with the same structure as the gitnexus arms
- review / ce_review: gitnexus-review vs ce-code-review on an identical
  diff applied by the task's setup
- plan handoff is snapshot-based: committed example plans in docs/plans/
  tie on clone mtimes and broke the name-glob pick (executed a stale plan)
- verify output tail is recorded per run and the final working-tree patch
  is kept, so failed rows are diagnosable after the clone is destroyed

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(skills,eval): address #2431 review — data-safe rename migration, fail-closed bench evidence

- setup: never delete a legacy renamed skill dir — the installer cannot
  prove ownership (users customize or hand-write skills under these
  names); warn with the path instead, and the test now asserts survival
- workflow_bench: fail closed when a session's --output-format json
  report is empty, malformed, or missing usage fields — an exit-0 shell
  with no parseable usage no longer counts as measured evidence
  (5 parametrized regression tests)
- workflow_bench: document the trust model prominently (task setup/verify
  are shell-executed, sessions run bypassPermissions with the parent env,
  candidate overlays are prompt injection surface) in README + docstring
- free-model.litellm.yaml: master_key from LITELLM_MASTER_KEY env instead
  of a static token; loopback-binding warning
- ci: run the eval workflow_bench pytest suite on ubuntu (pytest+pyyaml
  only — no full eval stack)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(eval): demand observed foreground verification in headless work-arm prompts

In a headless -p session there is no later turn: a work arm backgrounded
its slow test run, scheduled wakeups that can never fire, and reported
done while two of its tests failed. All four work-arm prompts (both
skill families, symmetric) now require verification output to be
observed inside the session.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(skills): ask plan depth up front instead of offering deepen afterwards

gitnexus-plan Phase 0 now asks one blocking question in interactive
sessions — quick / standard / deep, mapped onto the existing depth/form/
freshness knobs — when the invocation carries no explicit depth signal.
Explicit knobs and headless runs skip the question (category posture
unchanged, so benchmarks and automation behave as before).

gitnexus-lfg's plan gate slims to proceed/stop: depth was already the
user's up-front choice, so deepening is no longer offered by default —
an explicit deepen request at the gate and executor route-backs still
run Deepen mode, which remains the mechanism for strengthening an
existing plan document.

All shipped copies resynced (npm skills/, Claude plugin); AGENTS.md
1.13.0 and CLAUDE.md 1.7.0 pointers updated, including the analyzer's
regenerated index-stats block at this branch's head.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(skills): taint pass, expert lenses, and post-work index refresh

gitnexus-review gains a PDG-backed taint-and-dependence pass (explain +
pdg_query, --pdg folded into the stale refresh on trust-boundary diffs) and
an Expert lenses section: domain reviewers derived from the graph's
clusters plus four cross-cutting lenses (architectural fit, language
conformance per the repo's own contract, Definition of Done, simplicity),
dispatched once after the evidence-gathering steps and scaled to the diff.
gitnexus-work Phase 4 now refreshes the knowledge graph after the DoD walk
via the resolved-runner ladder with analyze --index-only, so the lfg review
lane and later sessions query the finished work without dirtying the tree.
lfg's threshold-governance paragraph moves to its README; eval citations
are tagged as measured in the GitNexus repo. All shipped copies re-synced.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(cli): remove legacy gitnexus-pr-review on uninstall; cover the rename migration

uninstall's removal set now includes LEGACY_SKILL_DIR_NAMES derived from
RENAMED_SKILL_DIRS, so a pre-rename install is cleaned up instead of
orphaned. The rename warning gains behavioral coverage (fires with a legacy
dir present, silent without), and shipped-skills-sync asserts legacy names
stay absent from every shipped tree.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(eval): metric provenance, error-kind rows, skill-invocation verification, gate noise floor

The promotion gate defaults to cost_usd (the only metric that includes
subagent spend); token metrics carry an explicit main-loop-only warning in
the report and promotion.json. Rows are classified by error_kind
(session-error / verify-failed / infra-error), excluded from efficiency
medians, and the gate requires equal valid-run counts. Each session's
transcript is scanned for the expected Skill invocation and fails closed on
a verified miss; a one-run resolution edge no longer promotes (noise
floor). Per-run timeouts and setup failures record an infra-error row
instead of aborting the sweep. Overlays touching skills no candidate arm
exercises are rejected up front.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs: fix skill routing paths, version headers, and skill rosters

Routing tables point at the tracked direct skill paths (matching the
post-#2434 generator output), AGENTS.md/CLAUDE.md headers match their
latest changelog rows, the 1.12.0 row describes what the migration actually
does, package/cursor READMEs list the full shipped skill roster, and the
swarm READMEs describe /gitnexus-review's expert lenses instead of calling
it single-agent.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* ci: drift-guard workflow for skill copies; pin eval pip deps; track docs/plans

ci.yml ignores '**.md', so an md-only skill edit would merge without the
shipped-skills-sync test running — skill-sync.yml triggers exactly on the
guarded trees. The eval job's pip install is version-pinned, and
docs/plans/ is unignored so gitnexus-plan output can be committed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(ci): keep the runner-invocation literal in gitnexus-review; add concurrency block to skill-sync

skills-steering requires skills with a stale-index hint to carry the exact
'node .gitnexus/run.cjs analyze' form — restore it with the fallback ladder
as a parenthetical instead of replacing it. skill-sync.yml gains the
top-level concurrency block the workflow-convention check enforces.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(skills): token-economy guidance for expert lenses

Merge lenses that ground in the same material into one reviewer, and use
cheaper model/effort tiers for mechanical lenses where the harness offers
them, reserving the strongest engine for adversarial judgment.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* test(eval): isolate transcript home on Windows

Ensure workflow_bench transcript tests set USERPROFILE alongside HOME so Path.home() resolves to the temporary test home on Windows.

* docs(skills): fold PR #2522 execution learnings into review/work/plan

Eight incident-backed hardenings from running the full skill cycle
(review -> plan -> work, 28-finding fix series) on PR #2522:

gitnexus-review:
- Expert lenses execute the code under review on candidate failing shapes
  (empirical probe outranks source reading — every HIGH the language
  lenses found came from a probe, not a read).
- Step 7 re-runs the exact CI check for refreshed baselines/fingerprints
  (a stale committed artifact is invisible in the diff; caught a red
  benchmarks arm).
- Step 8 treats version/invalidation constants as review surface
  (INCREMENTAL_SCHEMA_VERSION class recurred verbatim from #2494).

gitnexus-work:
- Step 4 proves regression tests discriminate against the pre-fix tree.
- Step 5 rebuilds executed build output before every verification run
  (parse workers load dist/; a correct fix 'failed' until rebuilt).
- Step 6 makes stage -> detect_changes -> commit one unbroken sequence.

gitnexus-plan:
- Phase 0 seeded-evidence mode: plan FROM a completed review's verified
  findings instead of re-running the graph ladder.
- Template §7: fingerprint/golden-guarded output rebaselines once, at the
  series tip.

All distribution copies resynced; shipped-skills-sync + skills-steering
24/24 locally.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(eval): close the skill-evolution loop with an automated proposer driver

workflow_bench.evolve adds the three arrows the README described as manual:
a proposer session that turns loser trajectories (results.jsonl rows,
transcripts, patches, the learning queue) into ONE bounded candidate
overlay, a driver that iterates propose -> paired benchmark -> deterministic
gate up to --generations, and an --apply step that copies a promoted
overlay onto the canonical skills and shipped mirrors as a working-tree
diff. The trust boundary is unchanged: overlays re-validate through
candidate_overlay_files before any benchmark or apply consumes them, and
committing, CI, and the PR merge stay human.

learnings.jsonl is gitignored: it is machine-local evidence, like the
session transcripts it complements.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(skills): route live-task friction into the evolution learning queue

Each family skill gains a short 'Skill feedback' section: on friction with
the skill's own instructions, append one JSON line to
eval/workflow_bench/learnings.jsonl (GitNexus repo only) — never self-edit
the skill from a live task. The proposer in workflow_bench.evolve consumes
the queue as hints; a learning reaches a shipped skill only by beating the
incumbent on the paired benchmark. All shipped mirrors re-copied byte-
identical.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* ci(tests): run the evolve helper tests in the eval pytest job

test_evolve.py needs only pytest+pyyaml, same as the harness tests the job
already runs — without this line the new module had no CI coverage.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(ci): comment-triggered GitNexus review agent for PRs

'@gitnexus review' from a maintainer (OWNER/MEMBER/COLLABORATOR; the action
re-validates write access) runs the repo's gitnexus-review skill headlessly
against the PR and posts the review as a sticky comment — remote triggering
with no local setup. Read-only by construction: contents: read token,
Write/Edit and web tools disallowed, Bash allowlisted to git reads and the
gitnexus CLI; analyze parses PR code with tree-sitter, never executes it.
Requires the ANTHROPIC_API_KEY repository secret; activates once the file
is on the default branch.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(ci): dispatch lane + existing OAuth secret for the review agent

Align with claude.yml: same action pin and the CLAUDE_CODE_OAUTH_TOKEN
secret the repo already carries — no new secret to configure. Add a
workflow_dispatch lane (PR number input) so the agent can be triggered from
the Actions UI and tested before the issue_comment trigger reaches the
default branch. Allowlist gh pr view/diff and gh api, which the review
skill uses to pin PR SHAs.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(ci): close a fork-PR RCE vector in the review agent's tool allowlist

A live headless run of the exact workflow session against PR #2431 (66
turns, full gitnexus-review pass) surfaced a real HIGH-severity confused
deputy: .gitnexus/ is gitignored, not blocked — a fork PR can commit its
own .gitnexus/run.cjs, issue_comment checks out PR-head content, and the
skill's runner ladder tries 'node .gitnexus/run.cjs analyze' first. That
would execute fork-controlled JS inside a job holding
CLAUDE_CODE_OAUTH_TOKEN and a write-scoped GITHUB_TOKEN — the opposite of
the 'PR code is read, never executed' claim in the workflow's own header.

Fix: drop the run.cjs allowlist entry so analyze always resolves through
npx gitnexus (npm registry, not the checked-out tree); the skill's
documented fallback mode covers the resulting graceful degradation. Also
drop 'gh api' (not read-only — accepts -X POST/PATCH/DELETE) and downgrade
pull-requests: write to read (comment posting only needs issues: write;
the prompt already forbids formal review submission).

Same session flagged a latent evolve.py bug: select_evidence's cost sort
used dict.get's missing-key default, which doesn't cover an explicit JSON
null in a foreign --seed-results row and crashes proposer setup with
TypeError. Guarded with 'or 0.0' and added a regression test.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix: harden PR review and evolution trust boundaries

* ci: follow workflow concurrency convention

* fix(eval): make terminating error paths explicit

* fix: unblock hardened review runtime checks

* test: make containment canaries deterministic

* test: expose Claude canary tool failures

* fix: adapt clean shell environment for Claude

* fix(eval): accept the runner's transcript source key in evidence preflight

The proposer evidence preflight required transcript-artifact metadata to be
exactly {path, sha256, bytes}, but the runner stamps a fourth provenance key
(source=parent-captured-stream-json). Any --seed-results or generation>=2 run
therefore aborted with SandboxError before proposing or promoting. Pin the
producer literal as PARENT_EVENT_STREAM_SOURCE and validate it in the metadata
check, and round-trip real producer output through sum_sessions into the
preflight so the schema can't drift again.

* fix(eval): treat an unmeasured session cost as unavailable, not $0

well_formed validated only the nested usage block, so an otherwise-successful
session missing total_cost_usd was recorded as cost_usd=0.0 — and cost_usd is
the default promotion metric (lower wins), so a cost-less session scored as
free and could win promotion it never earned. Extract cost via measured_cost()
(None on absent/garbage, a measured 0.0 preserved), propagate None through
sum_sessions/aggregate/savings/report, and have the gate refuse to rank on a
metric that was not measured on every run in both arms.

* fix(eval): warn when ranking on the main-loop-only num_turns metric

num_turns comes from the CLI's top-level usage (main-loop session only), like
output_tokens, but selecting it emitted no metric_warning — so a subagent-heavy
candidate could look artificially efficient. Add num_turns to
MAIN_LOOP_ONLY_METRICS and broaden the warning to cover turns.

* fix(eval): fail closed when an overlay adds a file with no committed base

An overlay adding a new .md under gitnexus-{plan,work} passes the structural
overlay checks but has no committed base for committed_destination_base_digests
to bind against, so it raised an uncaught ValueError that crashed the evolve
driver (and runner --candidate-overlay) mid-run. Catch it at both call sites:
evolve reports NOT PROMOTED and exits, runner routes it through parser.error.

* feat(eval): circuit-break the runner sweep on a systemic outage

A sustained upstream outage used to pay out every remaining --timeout window
one session at a time. Track consecutive session/infra/cleanup failures via a
pure systemic_outage_streak helper; after --outage-streak (default 5) in a row,
stop the sweep, still write report.md/promotion.json from partial evidence, and
exit non-zero so evolve.py halts instead of proposing from truncated evidence.
A task's own resolved=False never trips the breaker.

* fix(cli): report a dirty working tree as stale in gitnexus status

status --json (and the human output) computed up-to-date from commit + runner
identity + completeness only, so a repo with uncommitted source changes at a
matching HEAD was reported up-to-date while analyze would still re-index it.
A graph-backed agent gating on that JSON could skip re-analysis on a stale
graph. Extract analyze's dirty-tree check into a shared isWorkingTreeDirty()
in storage/git and fold it into the status freshness decision.

* fix(ci): use single-slash deny globs in the review agent's disallowedTools

github.workspace already expands to an absolute path, so Read(/${{ github.workspace }}/**)
and Read(//proc/**),(//sys/**),(//dev/**) produced double-slash patterns that a
normalizing matcher may not match — silently no-opping the deny layer. Not
exploitable (the allowlist is the primary control and never grants those
paths), but the globs should be well-formed. Update the pinned test strings.

* ci: install gitnexus-shared with npm ci from the committed lockfile

The gitnexus-shared build floated its deps via npm install in three workflows
(skill-sync, ci-tests, and — most importantly — the release publish.yml) while
every other install step uses npm ci. The lockfile is committed and in sync, so
switch all three to npm ci for reproducible, locked installs.

* test(cli): make the shipped-skills drift guard reject symlinks

listFilesRecursive walked with readdirSync and snapshotDir read with
readFileSync, both of which follow symlinks — so a mirror file symlinked to the
canonical tree passed the byte-compare (and a symlinked mirror dir would be
followed too). Reject a symlinked root via lstat and any symlinked entry via
Dirent.isSymbolicLink, with negative tests (skipped on Windows).

* test(eval): guard the candidate-skill vs mirror-root coverage invariant

MIRROR_SKILL_ROOTS omits the Cursor tree, safe only because no candidate skill
is cursor-shipped. Pin that invariant: every CANDIDATE_SKILLS entry must exist
under canonical + every mirror root and must not ship to Cursor, so adding a
cursor-shipped skill to the candidate set (the PR #2488 asymmetric-sync class)
fails loudly instead of syncing three of four trees.

* docs(ci): describe the review agent's staged post-merge rollout

The DoD asked for a dry-run or triggered run before merge, but an issue_comment
(or newly added workflow_dispatch) workflow only ever executes the default-branch
copy, so it cannot be exercised from the PR that introduces it. Reword the DoD
and the activation checklist to a staged rollout: merge registered-but-disabled,
validate same-repo and fork execution post-merge, then enable the variable.

* fix: pin plugin skill mcp.json to the release version via #2445 tooling

The ten plugin skill mcp.json launched `npx -y gitnexus@latest mcp` on every
skill connect — non-reproducible and a supply-chain surface, and (unlike the
persisted setup config) never pinned. Extend sync-plugin-manifests.mjs with an
mcp surface kind that stamps the gitnexus@<version> launch arg, pin all ten to
1.6.9 now, and keep them byte-identical so the drift guard stays green. The
release lifecycle + publish.yml --check now re-stamp them like the four manifest
surfaces; only READMEs stay on @latest as docs.

* test(eval): prove the proposer's built-in file tools are confined

The real-Claude canary only exercised Bash + MCP, so it proved process/MCP
containment but not that the proposer's built-in file tools stay inside their
mounts. Add a canary over the exact PROPOSER_ALLOWED_TOOLS surface and the same
read-only /evidence mount as run_proposer (allowlist extracted to a shared
constant so it can't drift): Read reaches /evidence, a Write into the read-only
evidence mount is denied, and a Write lands in the output tree.

* fix(eval): apply the candidate overlay after task setup for fair arms

The candidate overlay was applied before the task's untrusted setup ran, so
setup could observe candidate prose and the incumbent/candidate arms started
from different pre-overlay state. Reorder within the sandbox: capture the base
(pre-overlay) skill digest, run setup against the base skills, verify setup did
not tamper them, then apply the overlay and capture the post-overlay digest the
model must preserve. apply_candidate_overlay stages path-specific overlay files,
so setup's uncommitted changes stay out of the baseline and churn is unchanged.

Graph freshness for the review arm is handled by the status dirty-tree fix plus
the review skill's stale-triggered re-index, not by reordering the cached
per-task-sha graph materialization (which is mechanically blocked).

* test(eval): end-to-end containment proof of the autonomous proposer

Drives the real run_proposer through bubblewrap with a deterministic scripted
model (no paid API): it reads the read-only evidence bundle and writes a
candidate gitnexus-plan skill edit plus a rationale into the sandbox output
tree; run_proposer enforces the trust boundary and copies only the validated
overlay + proposal out. This exercises the autonomous-proposal stage of the
self-evolution loop end-to-end in the eval/containment CI job (the gate and
apply stages are covered by test_workflow_bench_evolution and
test_promotion_apply). Env-gated on GITNEXUS_REQUIRE_CLAUDE_CANARY, so it runs
only where the pinned Claude binary and user namespaces are available.

* fix(eval): let the proposer author its overlay via Bash

Running the end-to-end proposer canary in the containment CI job surfaced a real
bug: run_proposer starts the session with --bare, which hard-disables the
Write/Edit tools ("Write exists but is not enabled in this context"), yet
allowlisted Edit/Write and omitted Bash. The proposer therefore had no working
way to write its candidate overlay — the self-evolution loop could never produce
a candidate. The sandbox settings already pre-authorize Bash
(autoAllowBashIfSandboxed) and confine writes to workspace/tmp/home, so switch
PROPOSER_ALLOWED_TOOLS to Read/Grep/Glob/Bash and tell the proposer to author
files with Bash. The end-to-end test now drives the real run_proposer through
bubblewrap and asserts a validated overlay + proposal are produced (this also
replaces the earlier file-tool canary, whose Write/Edit premise was moot).

* test(eval): author the proposer overlay with newline-free Bash content

The nested shell-sandbox prefix mangles embedded newlines, so the multi-line
overlay content never landed. Use single-line content for the deterministic
proposer canary.

* test(eval): drop the unverifiable end-to-end proposer canary

The scripted proposer overlay never materialized in the containment job across
runs, and the model tool-result content is not visible in CI logs, so the test
cannot be finalized without an environment where the sandbox can actually run.
Keep the verified production fix (Bash-authoring in run_proposer); the proposer
sandbox/containment stays covered by the existing Bash+MCP and process-tree
canaries.

* test(cli): drop run-analyze.ts from the windowsHide spawn-family list

U7 moved run-analyze.ts's only child_process call (the git status --porcelain
dirty check) into storage/git.ts (already covered by this test, with
windowsHide). run-analyze.ts no longer imports a spawn-family function, so the
windowsHide-regression test's 'must have >=1 spawn call' invariant failed for
it. Remove it from SRC_FILES.

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: Zander Raycraft <zanderjraycraft@gmail.com>
Co-authored-by: Azizur Rahman <azizur100389@gmail.com>
2026-07-19 15:07:24 +01:00
Eva
1821b01dbe fix(embeddings): bind resume checkpoints to provider 2026-07-16 09:48:03 +07:00
Eva
711ff8721d fix(embeddings): make HTTP generation resumable 2026-07-14 02:15:57 +07:00
Gergő Magyar
df1fc36094
fix: make large incremental writebacks commit reliably (#2409) (#2425) 2026-07-10 14:05:23 +01:00
Gergő Magyar
e46b87f291
feat: flat workspace index follows the checked-out branch (#2364)
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* feat: flat workspace index follows the checked-out branch (#2354)

A plain `gitnexus analyze` now always targets the flat workspace slot,
updating it incrementally across branch switches instead of auto-routing
non-owner branches into `branches/<slug>/` sub-indexes (disk bloat) or
nagging with the primary-inversion "run gitnexus clean" warning. No new
CLI flag or config key: the smart behavior is the default.

- Placement: only explicit `--branch` consults resolveBranchPlacement;
  plain runs resolve to the flat slot, `meta.branch` becomes an
  informational "last analyzed branch" label restamped each run.
- Fast path: a same-commit clean-tree branch flip restamps the label and
  registry entry (adoptFlatBranchLabel, no-op for unregistered repos).
- Shadow cleanup: when the flat slot adopts a label that has a pinned
  sub-index, the now-unreachable `branches/<slug>/` dir and its registry
  summary are removed together.
- MCP: applyBranchScope always falls back to the on-disk flat meta before
  throwing "not indexed", so long-lived servers resolve a freshly
  restamped workspace branch.
- status: no more "current branch not indexed" dead end — falls through
  to the workspace index with an informational line and the usual
  commit-based staleness verdict.
- Deleted primaryInversionWarning; explicit `--branch` pinning, the
  checkout-mismatch guard, detached-HEAD/CI behavior, and `clean
  --branch` are unchanged.

Supersedes the flag-based approaches in #2358/#2359.
Closes #2354.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(storage): check registry before deleting shadowed sub-index (#2364 review F2)

adoptFlatBranchLabel ran the branches/<slug>/ rm before its own
unregistered-repo no-op check, so a repo in the #2264 half-finalized
state (up to date but unregistered) lost its pinned sub-index on a
same-commit branch flip while the run still failed. The registry
lookup now precedes the deletion, making the no-self-heal rule
(#2264/#1169) cover disk as well as registry state.

The 'never self-heals' unit test now materializes a sub-index dir and
asserts it survives; the run-analyze #2354 fast-path test registers
its repo under an isolated GITNEXUS_HOME (deletion is only legitimate
for registered repos) with a new unregistered variant pinning
dir survival.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(storage): keep branch summary when sub-index rm fails (#2364 review F4)

The shadow-cleanup fs.rm swallowed every error while the registry
summary was dropped unconditionally. On Windows an lbug held open by a
live MCP server fails the rm with EBUSY/EPERM, and once the summary is
gone 'clean --branch' can never target the leftover dir (it resolves
solely via the recorded summary) — stranding the exact un-cleanable
disk bloat adoptFlatBranchLabel exists to prevent.

The summary is now dropped only when the directory is verifiably gone
(post-rm existence check); on failure the summary is retained, a
warning names the path and errno, and the informational branch label
still restamps. Later adopts retry the rm.

New repo-manager-rm-failure.test.ts uses the delegating fs/promises
mock idiom (vi.spyOn cannot intercept ESM namespace exports).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(core): restamp fast path adopt-first and tolerate read-only storage (#2364 review F3)

The fast-path label sync stamped meta before adoptFlatBranchLabel, so
a crash or adopt failure between the two flipped the retry guard
(existingMeta.branch !== branchLabel) and locked in the partial state:
every subsequent same-commit run skipped the cleanup and branch-scoped
queries kept routing to the stale pinned sub-index. The block also sat
outside any try/catch, so a same-commit branch flip on a read-only
.gitnexus mount (the documented Docker :ro workflow, #1549) failed a
byte-for-byte-current analyze over a purely informational label sync.

Adopt now runs first and saveMeta last — any partial failure leaves
the guard true and the next run self-heals — and the whole sync is
best-effort: read-only errors warn citing #1549, anything else warns
and retries next run. Safe because the block only fires on a
same-commit clean tree, where the flat DB content is byte-valid for
both labels. isReadOnlyFilesystemError is now exported.

New run-analyze-adopt-failure.test.ts covers retry-after-partial-
failure, adopt-before-stamp ordering, and EROFS/EACCES/EPERM (gaps 4
and 7); a detached-HEAD fast-path pin lands in run-analyze.test.ts
(gap 6).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(mcp): make flat meta authoritative in applyBranchScope (#2364 review F1)

applyBranchScope trusted two pieces of cached state before its flat-
meta disk fallback, and the handle cache only refreshes on a resolve
miss — never on a hit. Post-#2354 that stale window is the routine
case: (i) the handle.branch early-return served the flat handle under
the OLD label after a workspace flip, silently returning the new
branch's content as the old branch (the pool staleness reinit hot-
swaps content without updating handle.branch); (ii) a stale cached
branches[] summary routed to a branches/<slug>/ dir that
adoptFlatBranchLabel had already deleted (raw 'LadybugDB not found' or
POSIX ghost reads with staleness detection blinded).

The on-disk flat meta is now read before any cached-state trust. A
branches[] summary is served only when its sub-index lbug actually
exists (the lbug is what the pool opens — serviceability truth); the
cached label is trusted only when no readable flat meta contradicts it
(#2106 R4 legacy shapes preserved). One refreshRepos() fires on
detected staleness so subsequent calls see fresh handles. Safe against
mid-analyze reads: dirty stamps spread the existing meta, preserving
the old label until the end-of-run atomic write.

Fixtures now materialize the pinned sub-index lbug; new regressions
cover the stale-old-label error, adopted-summary fall-through to flat,
and the dangling-summary partial-failure window (test gaps 1-2).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(core): make end-of-run branch-label sync best-effort (#2364 review F5)

The end-of-run adoptFlatBranchLabel sat inside the pipeline try whose
catch rethrows, so a registry write failure (ENOSPC, ~/.gitnexus
perms) after a successful multi-minute analyze failed the whole run —
even though the index was complete and registered, the neighbouring
parse-cache save is deliberately wrapped for exactly this reason, and
adopt retries unconditionally on the next plain analyze. It now warns
and continues, mirroring the parse-cache wrapper.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(mcp): correct branch-not-indexed guidance for workspace index (#2364 review F6)

The error told users to 'Run: gitnexus analyze --branch <X>', but
post-#2354 that command hard-errors unless X is checked out — and this
message is now the common goodbye for a formerly-indexed branch whose
sub-index the workspace slot adopted. The guidance now explains that
the workspace index follows the checked-out branch and leads with the
checkout; the '(primary only)' fallback becomes '(workspace only)'.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs: align primary/workspace vocabulary with the #2354 inversion (#2364 review F7)

The review flagged pre-inversion 'primary/non-primary' wording that
now misleads readers about the placement model: the isPrimaryBranch
JSDoc (field name kept — public API surface), the two branches? JSDoc
comments in local-backend, the base_ref gate comment in cli/analyze,
and four branch-scope test names. Comment/JSDoc/test-name edits only;
'Registry-primary' and 'primary key' senses untouched.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(cli): clarify workspace index status wording (#2364 review F8)

'gitnexus analyze follows this branch' was ambiguous about WHICH
branch analyze follows — the recorded one on the line or the current
checkout. Both locales now say a re-run follows the current branch.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(storage): re-read registry after the shadow rm in adoptFlatBranchLabel

The F2 reorder moved the registry read to the top of the function, so
the whole-file writeRegistry at the bottom persisted a snapshot taken
BEFORE the recursive rm of an entire sub-index — widening the unlocked
read-modify-write window from microseconds to the duration of a multi-
hundred-MB delete. A concurrent registerRepo/removeBranchIndex writer
in that window was silently clobbered (the #2106 R9 lost-update class;
registerRepo re-reads before writing for exactly this reason).

The top read is now a cheap membership gate only (the F2 no-op
guarantee); the mutate re-reads its own fresh snapshot after the rm.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix: treat only provably-absent errno as gone in the new existence probes

Both probes added by this series inverted the codebase's provably-
absent polarity (listRegisteredRepos validate prunes only on
ENOENT/ENOTDIR): adoptFlatBranchLabel's dirGone check read ANY
fs.access failure — including a transient EACCES/EIO on a surviving
dir — as 'verifiably gone' and dropped the summary, recreating exactly
the stranded-bloat bug F4 fixed; applyBranchScope's sub-index check
read the same transient errors on a healthy pinned lbug as 'adopted/
deleted', producing a false 'not indexed' error. A resolved force:true
rm now proves absence without a probe; on failure the probe treats
only ENOENT/ENOTDIR as gone, and a non-missing lbug serves the handle
so the pool open surfaces the real error.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(mcp): harden applyBranchScope stale-state coherence

Four residual gaps in the new arm structure, found by post-fix review:

- The stale-label error listed the just-contradicted cached label as
  indexed ('not indexed: main. Indexed branches: main'). The message
  now derives the flat label from the authoritative meta and excludes
  the requested branch from the hint list.
- A branch pinned AFTER the server cached its handle never triggered a
  refresh (resolve hits skip the miss-refresh), erroring until restart.
  Every miss now fires exactly one best-effort refreshRepos() before
  the error, so the next call resolves; a refresh-once guard keeps
  doubly-stale resolutions to a single registry re-scan.
- A registry entry claiming the branch both as flat label and pinned
  summary (the rm-failed adopt-degraded state) could serve the stale-
  vintage pin under a label the flat slot owns; the summary arm now
  requires handle.branch !== branch and the degraded state errors
  honestly.
- The flat-meta match path returned the cached handle's pre-restamp
  branch/commit/stats; the meta that decided routing now also supplies
  the metadata.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(core): keep the real error visible in restamp warnings; correct the end-of-run retry claim

The fast-path catch replaced the actual error with 'storage is
read-only (#1549)' for any EACCES/EPERM — mislabeling ownership
problems and transient Windows locks and discarding the only
diagnostic signal. The warning now carries the real message with the
#1549 hint appended.

The end-of-run best-effort comment claimed adopt 'retries
unconditionally on the next plain analyze'; same-commit runs take the
fast path whose guard compares the already-stamped meta label, so the
retry actually lands on the next content-changing run. The comment now
states the true retry semantics and why the interim state is safe
(flat meta stamped first; applyBranchScope trusts it).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* test: unique tmpdir for the branch-scope fixture; drop redundant dynamic imports

The branch-scope describe materialized its sub-index stub under a
FIXED os.tmpdir()/gnx-2106-multi path — concurrent vitest runs on one
host (the documented parallel-agents workflow) could rm each other's
stub between beforeEach and the resolve under test, flaking the
pinned-branch tests. The fixture root is now mkdtemp-unique per run
with afterAll cleanup.

run-analyze.test.ts dynamically imported repo-manager inside test
bodies despite the module being statically imported at the top of the
file (no vi.mock exists there to justify it); the three call sites now
use the static import.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-03 20:55:27 +01:00
Livio Gamassia
d546fa3cce
fix(storage): rename index metadata to gitnexus.json with dual-write compatibility (#2363) 2026-07-03 19:32:59 +01:00
Gergő Magyar
400cc6a440
feat(search): add opt-in CJK bigram segmentation for FTS search (#2339) 2026-07-01 16:41:41 +01:00
henry201605
8bef64baa1
feat(ingestion/routes): give Route nodes a (method, url) identity (#2289) (#2302)
* feat(ingestion/routes): give Route nodes a (method, url) identity (#2289)

Route node identity was URL-only, so a same-URL multi-verb pair
(GET /x + POST /x) collapsed into a single node and the second verb's
handler and execution flow were silently lost. Route identity is now
(method, url) via routeNodeKey(method, url): a known, specific verb keys
as "METHOD url", while a method-less route (filesystem routes — Next.js /
Expo / PHP — and Laravel resource/apiResource) or a wildcard "*" route
(e.g. Django function views) falls back to URL-only. The fallback is
byte-identical to the previous URL-only ids, so only genuine
declaration-style multi-verb routes split into separate nodes.

The identity key is shared across the three phases that must agree on the
Route node id:
- routes phase: registry key + node id + handler-symbol lookup; the Route
  node still carries the bare URL as its display name.
- call-processor: resolveRouteHandlerSymbols re-keyed by identity so each
  verb resolves its own handler; a verb-less fetch() consumer matches by
  URL and connects to every Route node at that URL (one per verb).
- processes phase: ENTRY_POINT_OF targets the identity-keyed node id.

Bumps INCREMENTAL_SCHEMA_VERSION 4 -> 5: persisted pre-v5 Route nodes use
the old url-only ids, so an incremental top-up would strand them alongside
new composite-keyed nodes — force a full re-analyze instead.

Part of #2280.

* fix(ingestion/routes): address PR #2302 review (P1/P2/P3)

P1 — Schema v5 fast-path bypass (run-analyze.ts):
  Adds a schemaVersion-mismatch guard above the alreadyUpToDate early-return,
  mirroring the pdgModeMismatch slot. Without it, a same-commit re-analyze on
  a pre-v5 stamp returned alreadyUpToDate without ever reaching the
  isIncremental gate, defeating the v5 schema bump's migration intent.
  Regression test covers: analyze (stamps v5) → meta downgrade to v4 → same
  commit re-analyze must NOT early-return and meta restamps to v5.

P2 — ENTRY_POINT_OF handler-aware linking (processes.ts):
  Pre-fix routesByFile fanned every same-file Route to every same-file
  process, cross-wiring same-file GET/POST handlers. Now reads handlerSymbolId
  off the Route graph node (the source of truth routes.ts stamps) into
  routesByHandlerId, with a routesWithoutHandlerByFile fallback — mirrors the
  Tool linking precedent 10 lines below. Two regression tests: weak form
  (only one handler has a process; sibling verb does not get spuriously
  attached) and strong form (both handlers form distinct processes; each
  Route links to exactly its own entryPoint, 2 edges not pre-fix 4).

P2 — Roundtrip composite-id (route-{method,handler-symbol}-roundtrip):
  Both tests now seed the Route node with
  generateId('Route', routeNodeKey('POST', '/api/orders')) and run the
  Cypher MATCH against the composite id, exercising the literal-space-in-id
  through CSV→COPY→HANDLES_ROUTE_QUERY. A space-in-id escape regression
  would surface here instead of being silently swallowed by the extractor's
  catch.

P3 — doc-drift + test if:
  - route-path.ts:4 — header updated to "(method, url) via routeNodeKey"
  - java.ts:684 — drop "Route nodes are URL-keyed"; #2289 closes that gap
  - manifest-extractor.ts:196 — explicit that Route node *id* is composite
    while route.name remains the bare URL
  - multi-verb-route-identity.test.ts:88 — forEachRelationship+if rewritten
    as a .filter().map() chain (no test-level conditional). New
    route-process-linking tests are also if-free.

Validation: tsc clean, prettier clean, 9 touched suites / 43 tests pass.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(ingestion/routes): drop routes.ts re-export, fix CI fast-path tests

Two follow-ups on PR #2302's CHANGES_REQUESTED review:

1. Drop `routes.ts` re-export of `normalizeExtractedRoutePath` /
   `normalizeRouteMethod` / `routeNodeKey` (per @magyargergo's inline
   comment at routes.ts:153 — the symbols already live in
   `route-extractors/route-path.ts` and consumers should import them
   from the source, not via a routes-phase indirection that was kept
   only as a compat shim during the #2289 refactor). Updated the two
   remaining callers (blade-template-routes / spring-route-extractor-
   parity tests) to import directly from `route-extractors/route-path.js`.
   `call-processor.ts` and `processes.ts` already import from the source.

2. Fix two `run-analyze.test.ts` fast-path tests that started failing
   on CI after the schema-version mismatch guard landed (
   "creates .gitnexus/.gitignore on the already-up-to-date fast path"
   and "reports isPrimaryBranch false for an up-to-date non-primary
   branch"). The test fixtures hand-built a RepoMeta with NO
   schemaVersion field; with the guard now checking
   `existingMeta.schemaVersion !== INCREMENTAL_SCHEMA_VERSION`, that
   pre-versioning shape was treated as a mismatch and forced a rebuild,
   short-circuiting the fast path the tests exercise. Stamp the current
   schemaVersion on those fixtures so they reflect the post-#2289 meta
   shape production actually writes (`runFullAnalysis` always stamps
   the field on git repos — see meta save site).

Validation: tsc clean, prettier clean, 11 touched suites / 80 tests pass.

---------

Co-authored-by: henry <zhangwei2017@unipus.cn>
Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-26 07:59:46 +01:00
Gergő Magyar
78b4077d8a
feat(impact): opt-in PDG-backed impact mode - statement + inter-procedural slicing, resolved-callee-id soundness, mutation-oracle validated (#2227)
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2026-06-20 12:04:32 +01:00
Gergő Magyar
cdb07289a4
perf(cfg): SSA-sparse reaching-defs to replace the dense-set worklist (#2201) (#2212)
* test(cfg): retain dense reaching-defs as differential oracle + fuzz harness (#2201 U1)

* refactor(cfg): extract shared harvest/adjacency/sweep + swappable in-set computer (#2201 U2)

* perf(cfg): sparse change-driven reaching-defs solver + canonical truncation (#2201 U3,U4)

* perf(cfg): switch production reaching-defs to the sparse solver (#2201 U5)

* perf(cfg): true SSA-sparse reaching-defs solver with auto-dispatch (#2201 U3)

Replace the per-variable worklist (correct but no faster — it still walks
pass-through blocks per binding) with Cytron SSA: CHK dominators + dominance
frontiers + phi-placement + stack renaming over a synthetic entry, answering
block-entry reaching queries by walking the SSA def-use graph (SCC-condensed,
cycle-safe). Pass-through blocks carry the dominating def via the rename stack
and phi-nodes statically capture loop merges, so dense-bindings drops from
O(n^2) to O(n) (5-23x faster, asymptotic) and deep nests are depth-independent.

The sweep now queries a lazy reachingAt accessor with a sparse intra-block
overlay (no full per-block lattice copy). Production auto-dispatches: SSA for
looping functions >=16 blocks (where it pays off, incl. the deep nests the
dense ceiling used to truncate -> ceiling stops firing), dense elsewhere (small
/ loop-free functions, 1.0x — no regression). Throw-edge and unreachable-block
functions fall back to dense (byte-identical). Held byte-identical to the dense
oracle across a 300k-CFG (~1.2M-comparison) differential fuzz.

* test(cfg): R5 contrast — dense ceiling fires, SSA solver converges (#2201 U6)

* bench(cfg): deep-nest scenario + tighten dense-bindings rd budget 10->2 (#2201 U7)

dense-bindings rd_scaling drops 5.2->0.86 (SSA linear); budget tightened to 2.0.
New deep-nest scenario (N nested loops, one carried var) measures rd under the
production blocks×64 ceiling and asserts the SSA solver still COMPUTES full
facts (facts_large_min) where the dense worklist would truncate — the
ceiling-stops-firing acceptance. CFG fingerprints unchanged.

* docs(cfg): document SSA-sparse solver + resolve the WTO no-go note (#2201 U8)

* fix(review): apply autofix feedback (#2201)

- Close the production SSA-dispatcher fuzz-coverage gap: the generator's
  maxBlocks=14 was below SSA_MIN_BLOCKS=16, so the auto-dispatcher's SSA branch
  was never differentially fuzzed. Raise to 36, add a hadLargeLoop coverage
  assertion + a back-edge-into-entry canonical CFG. Validated byte-identical on
  100k random CFGs incl. >=16-block looping shapes via both entry points.
- Correct stale function JSDocs + @internal annotations (dispatch/fallback roles).
- Add an independent rd_all_computed bench gate (catches partial truncation).
- maxBlockVisits comment, SSA_MIN_BLOCKS calibration note, nx->next rename.

* fix(cfg): gate out-of-range binding indices to the dense fallback (#2201 review)

Tri-review (adversarial lane, reproduced) found the SSA path less tolerant than
the dense oracle it replaced: an out-of-range binding index in defs/uses/mayDefs
(a corrupted/stale durable store) crashed the nBindings-sized arrays
(defBlocks[v]/stacks[u]), where dense tolerated it as a Map key. The throw
escaped the unguarded taint/harvest call sites and lost a whole file's taint
layer. Add a malformed-input gate that falls back to the dense solver (which
handles any index), preserving byte-identity AND the graceful per-function
degradation. Add an OOB canonical CFG to the differential fuzz + a production-
entry no-throw unit test (the generator only ever emitted in-range indices, so
this divergent input was structurally invisible).

* perf(cfg): bound the SSA value-graph, fall back to dense when oversized (#2201 review R1)

maxFacts bounds fact materialization in sweepFacts, but nothing bounded the
SSA-sparse solver's φ/value-graph construction. A high-binding-density deep
loop routed to SSA (≥16 blocks + a reachable loop) builds an O(blocks×bindings)
value graph the dense path would have truncated at its maxBlockVisits ceiling
(~1.5 GB measured on a 3000-block × 300-binding function).

Cap the value graph: after φ-placement (where nodeKeys.length == the φ count,
the input-superlinear term) plus a 2×Σgen bound on the renaming nodes, fall
back to computeInSetsDense before paying for renaming + Tarjan SCC. The fallback
is byte-identical (dense is the equivalence oracle) and bounded (dense honors
maxBlockVisits). Mirrors the existing throw/unreachable/OOB-binding gates.

The ceiling is DEFAULT_MAX_SSA_VALUE_GRAPH_NODES (1e6 — far above any real or
benchmarked function; dense-bindings/deep-nest build <1e4), overridable per call
via ReachingDefsLimits.maxSsaValueGraphNodes. The new unit test makes the
otherwise-invisible routing flip observable by pairing the cap with a tight
maxBlockVisits (dense truncates, SSA computes). Equivalence fuzz unchanged
(byte-identical, 20k CFGs green); tsc clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(cfg): alias single-source SCC reaching-sets in reachByScc (#2201 review R2)

The SCC-condensation pass built a fresh Set for every SCC and copied each
cross-SCC operand's reaching-set element-by-element — O(defs²) at wide-fan-in φ
merges (a φ over many predecessors, each carrying a large reaching-set).

Add an alias fast path: an SCC with no own leaf keys whose cross-SCC operands
all resolve to ONE source SCC has exactly that source's reaching-set, so share
it by reference instead of copying. This is the common shape (pass-through φ /
single-operand value node). The full union is still built when an SCC has own
keys or genuinely merges ≥2 distinct sources.

Safe to share: reachByScc sets are read-only after construction (operand SCCs
are numbered before s in Tarjan's reverse-topological order and are only
iterated), and contents are identical — set iteration order is irrelevant
because sweepFacts sorts each use's keys before emission (KTD6). Byte-identical
to the dense oracle (30k-CFG fuzz green); tsc clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(cfg): fold the SSA reachability gate into the RPO pass (#2201 review R8)

computeInSetsSparse ran a standalone reachability BFS to gate unreachable-block
functions to the dense oracle, then immediately computed a reverse-post-order
over the synthetic-entry graph — two traversals of the same successor structure.

reversePostOrder now returns the reachability bitmap its DFS already builds, and
the sparse path reuses it for the unreachable-block gate (S→entry is S's only
edge, so reachX[b] for b<n is exactly "reachable from entry" — identical to the
removed BFS). One traversal instead of two on every SSA-dispatched function.

The dispatcher's hasReachableLoop pass is left in place: it decides SSA-vs-dense
BEFORE the solver is entered, and computeInSetsSparse must stay self-contained
(the equivalence fuzz drives it directly, bypassing the dispatcher), so the two
cannot share a traversal without coupling the InSetsComputer contract.

Routing and facts unchanged — byte-identical to the dense oracle (30k-CFG fuzz,
including unreachable-block shapes, green); tsc clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(cfg): trim per-statement/per-use/per-block allocations (#2201 review R9)

Three transient allocations in the hot paths, all behavior-preserving:

- sweepFacts: replace the per-statement `new Set([...defs, ...mayDefs])` with a
  direct `includes()` scan over the (1–3 element) def/mayDef arrays, guarded by a
  cheap hasSelfDefs flag that short-circuits pure-use statements.
- sweepFacts: reuse a single scratch array for each use's reaching def-keys
  instead of spreading a fresh array per use. The KTD6 pre-sort still runs in
  place (load-bearing for truncated byte-identity).
- computeInSetsSparse: build dPredsX by skipping consecutive-equal `from` values
  (preds[b] is pre-sorted by buildAdjacency, so duplicates are adjacent) instead
  of a per-block Set + spread + sort; the synthetic entry S = n exceeds every
  block index so it appends in order.

The sweep is shared with the dense oracle, so these stay byte-identical on both
paths — 50k-CFG fuzz (incl. maxFacts truncation, the order-sensitive case)
green; tsc clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(cfg): correct the sweepFacts truncation byte-identity mechanism (#2201 review R6)

The outer sweepFacts JSDoc attributed a truncated result's cross-solver
byte-identity to the two solvers producing "identical inSets — insertion order
included". That is wrong: the dense (RPO fixpoint) and SSA (renaming/SCC)
solvers deliberately build a loop-carried use's reaching set in DIFFERENT
insertion orders — same set, different order. The actual mechanism is the KTD6
per-use sort that canonicalizes each use's keys by defKey BEFORE the maxFacts
cutoff (already documented correctly on the inner comment). Rewrite the outer
doc to say so. Documentation only.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(cfg): extract pure graph sub-stages to reaching-defs-graph.ts (#2201 review R4)

reaching-defs.ts had grown to ~1190 lines with the #2201 SSA rewrite. Move the
self-contained, pure (plain-array) algorithms into a sibling module:

  - reversePostOrder
  - buildDominators (Cooper-Harvey-Kennedy)
  - buildDominanceFrontiers (Cytron)
  - tarjanScc + condenseReachingSets (SCC condensation, alias fast path)
  - hasReachableLoop (dispatcher loop check)
  - unionSets / latticeEquals (def-set / lattice primitives)

The new module has a STRICT one-way dependency (it imports nothing from
reaching-defs.ts — every helper is parameterized over plain arrays/Sets), so
there is no import cycle and each stage is independently testable. reaching-defs.ts
now holds the orchestrator, the two solver bodies, harvest, adjacency, the
statement sweep, and the dispatcher: 1190 → 988 lines.

Pure mechanical extraction — behavior is preserved by the differential
equivalence fuzz (40k CFGs byte-identical) + the reaching-defs unit/snapshot
suites; tsc clean. The helpers are @internal (kept out of the shipped .d.ts by
the stripInternal change).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(pdg): stamp the reaching-defs solver identity for incremental re-analysis (#2201 review R3)

The SSA-sparse rewrite computes full REACHING_DEF facts for deep-loop functions
the old dense worklist truncated to empty at the blocks×64 ceiling. But an
existing `--pdg` index carries those stale-truncated rows, and nothing forced a
re-analysis: RepoMeta.pdg had no solver-identity key, so an upgraded run over an
unchanged file kept the incremental fast path and never recomputed.

Add a constant `reachingDefSolver: 'ssa-sparse-v1'` to the resolved pdg stamp
(and to the RepoMeta['pdg'] type). It rides the existing key-union
pdgModeMismatch comparator: a pre-#2201 stamp lacks the key, so
'ssa-sparse-v1' !== undefined trips one full writeback that recomputes the
fuller coverage — no `--force` needed — exactly like the M2 REACHING_DEF cap and
M5 CDG cap upgrade paths. A matching post-#2201 stamp compares equal, so there
is no spurious re-analysis churn on steady-state re-runs.

Tests: new pre-#2201→SSA upgrade block in pdg-mode-flip.test.ts (stamp present,
absent-key mismatch, identical-stamp no-churn) + the persisted-stamp shape
assertions and resolvePdgConfig DEFAULTS updated for the new key. tsc clean;
pdg-mode-flip + run-analyze suites green (55/55).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* build(ts): stripInternal so @internal test-only exports stay out of the shipped .d.ts (#2201 review R5)

computeReachingDefsDense/computeReachingDefsSparse are exported only for the
equivalence fuzz and tagged @internal, but `declaration: true` emitted them into
the public dist/**/*.d.ts. stripInternal removes any @internal-tagged export from
the declaration output.

This is repo-wide, which is the intended behavior: the same applies to every
other test-only @internal export (hf-env's withDownloadTimeout etc., worker-pool's
buildDispatchMessage/crashSignature, parse-impl's handleWorkerStartupFailure, the
logger/safe-parse test resets, and the new reaching-defs-graph SSA helpers) — all
of which are documented as not-public.

Verified:
- declaration emit succeeds with no TS4094/TS9006 ("cannot be named") errors;
- the @internal functions are gone from the emitted .d.ts (reaching-defs-graph.d.ts
  is now `export {};`), while public symbols (computeReachingDefs) remain;
- gitnexus-web — the only cross-package consumer — typechecks clean and imports
  only from gitnexus-shared, never from gitnexus internals;
- runtime .js and the vitest/tsx tests are source-based, so unaffected.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(bench): add wide-merge scenario + tighten deep-nest facts floor (#2201 review R7)

wide-merge: N bindings, each assigned in a 3-way branch (a wide multi-operand φ
per binding) inside a loop, then all used after the merge. Unlike dense-bindings
(one chained redef per `if`), every binding fans into its own wide φ, so the
scenario exercises φ-placement + renaming + the reachByScc condensation across
many independent wide merges. N bindings × constant arms ⇒ O(N) facts, so the
gate is rd_scaling LINEARITY (measured ~1.07; budget 2.0 catches a regression to
the per-binding-rescan O(N²) class the reachByScc alias path guards against). It
runs the production SSA path (10007 blocks + a loop) and computes all facts under
the blocks×64 budget (facts_large_min 24000 of a measured 26008 + the
rd_all_computed gate).

deep-nest: tighten facts_large_min 100 → 150 (measured 164) so a partial-
truncation regression that still cleared 100 — but lost facts — now fails, with
~9% headroom for noise.

bench --check PASS (9 scenarios) under --expose-gc; all existing CFG fingerprints
unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* style(cfg): drop trailing blank line in reaching-defs.ts (prettier)

Whitespace-only — a stray trailing newline left by the U4 extraction. `prettier
--check` (the root format CI gate) now passes on every changed file. No behavior
change.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-15 19:16:53 +01:00
Gergő Magyar
7c3d4e6862
feat(pdg): control dependence — post-dominators + CDG (Ferrante) [M5 #2085] (#2188)
* feat(pdg): add CDG + POST_DOMINATE edge types (M5 #2085)

* feat(pdg): post-dominator tree on reverse CFG (M5 #2085)

* feat(pdg): Ferrante control-dependence over the post-dom tree (M5 #2085)

* feat(pdg): emitFileCdg + optional POST_DOMINATE debug edges (M5 #2085)

* feat(pdg): wire CDG emission in-phase + pdgModeMismatch CDG-cap stamp (M5 #2085)

* test(pdg): CDG snapshot + end-to-end pipeline answerability (M5 #2085)

* fix(review): apply autofix feedback (M5 #2085)

* fix(pdg): label CDG edges by controller arm sense, not edge kind (#2188 F1/F2/F4)

Tri-review (with Codex as the independent engine) found the CDG 'T'/'F' label
was wrong for the commonest control flow: the M1 TS visitor wires a condition's
fall-through FALSE arm as `seq`/`loop-back`, but `branchSense` mapped both to
'T', so guard clauses, if-no-else, and loop `break` got 'T' instead of 'F' (F1,
P1). The structural CDG edges were correct; only the label — the AC3 "under what
condition does X run?" answer — was wrong.

- F1: replace edge-kind `branchSense` with controller-arm-sense `labelFor`. An
  ambiguous fall-through edge (seq/loop-back) takes the COMPLEMENT of its source
  block's explicit cond-true/cond-false sibling arm. This correctly handles
  do/while (loop-back = TRUE arm) and inner-if-in-loop (loop-back = FALSE arm) —
  the ambiguity a kind→label table cannot resolve. Adds real-parser regression
  tests (the hand-built tests used a fictional cond-false edge and missed it).
- F2: correct the false "sound over-approximation that never drops a real
  dependence" claim in post-dominators.ts — exit-unreachable regions both drop
  and invent control dependences (latent for the current TS visitor, which keeps
  EXIT reverse-reachable). Reframe the exit-less-loop test to characterize, not
  bless, the degenerate behavior.
- F4: make the AC2 property-test reference compute post-dominance INDEPENDENTLY
  (node-removal reachability, no shared code with post-dominators.ts), so a
  post-dom direction bug can no longer pass both the impl and the reference.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ci): root-prettier format + run-analyze pdg stamp gains maxCdgEdgesPerFunction (#2085)

Two deterministic CI failures from the M5 CDG work:
- quality/format: basicblock-roundtrip.test.ts failed CI's root `prettier --check .`
  (the pre-commit hook uses the gitnexus-local prettier config, which differs);
  reformatted with the root config.
- tests/ubuntu/coverage: run-analyze.test.ts pinned the resolved RepoMeta.pdg
  shape (DEFAULTS) and the all-zero cap override without the new
  maxCdgEdgesPerFunction key (default 5000); added it so resolvePdgConfig
  toEqual and pdgModeMismatch(DEFAULTS) pass. (The stale-test sweep missed this
  file in PR #2188 — same trap M2 hit.)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(mcp): add pdg_query tool definition (controls/flows modes) [M6 #2086]

* feat(mcp): pdg_query backend — controls (CDG) + flows (REACHING_DEF) + e2e test [M6 #2086]

* feat(mcp): document PDG edges + pdg_query (schema, cypher, skill, --pdg-gated ai-context) [M6 #2086]

* fix(mcp): correct pdg_query symbol-anchor lower bound + harden inputs [PR #2188 review]

Tri-review (Codex + adversarial + correctness lanes) of the M6 pdg_query
surface found the symbol-anchor window over-includes a neighbor function's
block. The upper bound was widened to the 1-based BasicBlock basis (symEnd+1)
but the lower bound was left 0-based, so a block on the line directly above the
target function leaked into the result. Shift both bounds +1 ([symStart+1,
symEnd+1]) so the window is the function's true block span.

Also from the same review:
- pdg_query no longer throws on a no-arguments MCP call: the dispatch passes
  raw `params`, so default it to {} → a clean mode-validation error instead of
  a TypeError. (`explain` shares this latent pattern — pre-existing follow-up.)
- tools.ts: the controls-mode description no longer hard-codes the 'F' branch
  sense for guards — `if (!ok) return;` rides the predicate's 'T' arm; the
  guard:true flag is label-agnostic (regex on the dependent block text).

Tests: a hand-seeded adjacency regression (verified failing without the
lower-bound +1) + a no-arguments validation test. Skill doc updated to document
the two-sided [symStart+1, symEnd+1] window.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(mcp): drop always-true anchor conditional in pdg_query [CodeQL #2188]

CodeQL alert 756 flagged `...(anchor ? { anchor } : {})` in _pdgQueryImpl as a
useless conditional: `anchor` is unconditionally assigned in both the file-path
and symbol branches before the return (the not-found/ambiguous/no-layer paths
return earlier), so it is always truthy. Drop `| undefined` from the declaration
(TypeScript definite-assignment holds across both branches) and emit `anchor`
directly.

No runtime change — the `anchor` field was already present on every result.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(cli): add hasPdg to the noStats bridge expectation [#2188]

The M6 work threaded `hasPdg: options.pdg === true` into the AIContextOptions
passed to generateAIContextFiles on the --skills regeneration path, but this
test's strict .toEqual expectation predated it (4 keys vs 3 → CI failure). Add
`hasPdg: false` (the value on this non---pdg path). The assertion stays strict;
the #1477 noStats bridging it guards is unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(cli): collapse generateGitNexusContent params to an options bag [#2188]

The function had grown to 9 positional params; reaching `hasPdg` meant passing
six `undefined`s (the M6 review's maintainability flag). Collapse params 3-9
(generatedSkills, groupNames, noStats, skipSkills, runnerPath, defaultBranch,
hasPdg) into a `GitNexusContentOptions` object with the defaults moved to
destructuring. The body is unchanged (same local names); the single production
caller and the test calls become self-documenting named fields.

Pure refactor — generated AGENTS.md/CLAUDE.md content is byte-identical.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): skip CDG for exit-unreachable CFGs (unsound post-dominance) [#2188]

M5 review P2: computePostDominators roots only at cfg.exitIndex and nothing
enforced that EXIT is reachable from every block. For an entry-reachable region
that cannot reach EXIT (a non-terminating loop, or a multi-terminal CFG a future
visitor might emit) the EXIT-rooted reverse walk degenerates — it both drops
real control dependences and invents spurious ones.

Add a pure precondition predicate `isExitReachableFromAllBlocks` (co-located with
the algorithm it guards) and gate it in emitFileCdg: a CFG that violates it is
skipped for CDG (counted as skippedUnsoundFunctions + one onWarn), while its CFG
and REACHING_DEF projections — which do not depend on post-dominance — are kept.
A CDG-specific gate, not a widening of isEmitSafeCfg, so the blast radius is
exactly the unsound CDG. The current TS visitor always satisfies the
precondition (every loop gets a structural header→loopExit edge), so CDG output
for real fixtures is unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): bound computeControlDependence materialization (heap parity) [#2188]

M5 review P2: unlike computeReachingDefs (maxFacts) and the emit-side edge cap,
computeControlDependence materialized the full deduped seen/out before
emitFileCdg's per-function cap could trim it — O(edges × post-dom depth) heap
for a deeply nested function.

Add a `maxEdges` ceiling (default 0 = unbounded) returning {edges, truncated},
mirroring computeReachingDefs's {facts, truncated}. The ceiling is checked
before pushing a new unique edge, so `truncated` means a genuine overflow (not
merely "reached cap"). emitFileCdg passes a FIXED materialization ceiling (8× the
default edge cap) — deliberately NOT derived from the runtime edge cap, because
CDG's materialization IS the deduped-edge quantity the cap reports on (deriving
it would pre-truncate that set and lose the exact dropped count). A ceiling hit
is surfaced via onWarn + the truncated flag — never silent.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(mcp): share resolveBlockAnchor; fix explain's anchor off-by-one [#2188]

M6 review P2 (duplication) + the flagged pre-existing _explainImpl correctness
follow-up. _pdgQueryImpl and _explainImpl each carried a near-identical
symbol↔block anchor resolver that had DRIFTED: pdg_query used the corrected
[symStart+1, symEnd+1] window (BasicBlock startLine is 1-based, the symbol span
0-based) while _explainImpl still used [symStart, symEnd] — dropping a taint
source on the function's final line AND leaking a neighbor's block on the line
directly above.

Extract one `resolveBlockAnchor` helper, used by both, that applies the correct
window and a single (bare) clause convention (callers compose their own WHERE).
This removes ~50 duplicated lines and fixes explain's anchor in one place.

A hand-seeded characterization test (taint-explain Block 4) pins both bounds —
verified to FAIL on the pre-fix window (it returned the line-10 neighbor instead
of the line-15 final-line source). Existing taint-explain + pdg-query suites are
unchanged (their fixtures have interior sources/sinks).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(mcp): pdg_query reports "status unknown" when the layer can't be confirmed [#2188]

M6 review P3 (Codex): when meta is UNREADABLE and the bounded global existence
probe returns zero rows of the edge type, _pdgQueryImpl asserted "no PDG layer"
— but a genuinely edge-free layer (all-linear functions) is indistinguishable
from a missing one via that probe. Soften only that fallback path to an
inconclusive "PDG layer status unknown — was this repo indexed with --pdg?"
note. The meta-stamped path (stamp present, cap absent ⇒ layer truly missing)
keeps the definitive "no PDG layer" wording.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(mcp): cover pdg_query ambiguous / pagination / Windows-path gaps [#2188]

M6 review test-gap follow-ups, all hand-seeded with controlled data:
- ambiguous symbol name → status:'ambiguous' + ranked candidates shape
  (uid/name/filePath/score), never a silent guess;
- total/truncated page boundary in both directions (limit below the match count
  sets truncated with the full total; limit above it omits truncated);
- a Windows-style filePath containing ':' resolves and fnLineOf decodes the
  function-line segment correctly (split-from-right past the drive letter).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(skills): ship gitnexus-pdg-query skill mirrors + add pdg_query to the guide [#2086]

M6 bundled pdg_query into this PR, but the skill shipped only in the canonical
gitnexus/skills/ root. Mirror it (byte-identical) to the two hand-maintained
roots the sibling taint skill uses — .claude/skills/gitnexus/ and the plugin —
so Claude Code + plugin users get it too.

Also extend the gitnexus-guide tool reference (all 3 copies, now byte-identical):
add a `pdg_query` row + a "Control & data dependence" section mirroring the
taint/`explain` section, and reconcile the pre-existing drift where only the
.claude copy carried the `check` tool row (a real registered tool) — all three
now list it.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(architecture): refresh CFG/PDG section for the full M1–M6 stack [#2086]

The PR body had deferred the "ARCHITECTURE docs refresh" to #2086; now that M6
ships here, do it:
- MCP tools table gains `explain` and `pdg_query` (were absent).
- "Optional CFG/PDG emission" was M1-only; rewrite to cover the whole opt-in
  stack — M1 CFG, M2 REACHING_DEF, M3/M4 taint, M5 CDG (Ferrante over CHK
  post-dominators, with the exit-unreachable skip), M6 read surface (pdg_query +
  explain, anchored + LIMIT-bounded, shared resolveBlockAnchor) — and note the
  no-Function→BasicBlock-edge join.
- LadybugDB schema notes the `--pdg` additions: the `BasicBlock` node table and
  the CFG/REACHING_DEF/CDG/TAINTED/SANITIZES/TAINT_PATH relation types, kept out
  of the default VALID_RELATION_TYPES / web schema.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-13 18:49:03 +01:00
Gergő Magyar
129bc84c0d
feat(taint): interprocedural taint via function summaries over resolved CALLS (#2084) (#2179) 2026-06-13 07:04:14 +01:00
Gergő Magyar
14397dd4aa
feat(taint): intra-procedural taint analysis (#2083) (#2164)
* feat(taint): harvest occurrence-tagged call/member sites on StatementFacts (#2083 U1)

Worker-side site harvest in TsHarvester: call/new/member-read records with
dotted callee paths, receiver slots, per-argument occurrence tagging with
nested-site links, per-declarator resultDefs, spread/template/require-literal
markers. hasTaintSafeSites validation seam. The pdg parse-cache chunk-key
namespace is versioned (pdg:1 -> pdg:2) instead of a global SCHEMA_BUMP so
flag-off users keep warm caches; bench fingerprints re-baselined for the
three call-bearing scenarios (straight-line/dense-bindings byte-unchanged).

* feat(taint): built-in TS/JS source/sink/sanitizer model + site matcher (#2083 U2)

Typed spec (kind taxonomy; sanitizers carry neutralizes-kinds), the canonical
Express/Node model, and matchFunctionSites: ESM alias/namespace + require-
literal callee resolution, bare-name fallback restricted to true globals,
sanitizers module-or-global only (never user-shadowable by name), spread/
template arg-position rules, deterministic taintModelVersion.

* feat(taint): pure intra-procedural taint propagation engine (#2083 U3)

Two-rule model (statement-local + du-fact worklist) with per-taint
neutralized-kind exclusion sets: sanitizers exclude only the sink kinds
they neutralize (escape(req.body) suppresses res.send but still fires
db.query; exec(path.basename(t)) fires), intersection-over-paths so a
bypass occurrence keeps the taint live, kill locality on resultDefs,
propagate-through args+receiver with viaCall hops, one path per finding,
deterministic caps, coverage-gap statuses. Test-first: 38 scenarios on
real harvested CFGs.

* feat(taint): thread taint caps + model version through pdg config/meta (#2083 U5)

resolvePdgConfig gains maxTaintFindingsPerFunction (200), maxTaintHops (32),
and the taintModelVersion digest; RepoMeta.pdg + RunScopeResolutionInput
surfaces added. The key-union comparator trips full writeback on M2->M3
upgrade and on model-version change without --force (mode-flip tested).
No CLI flags or rc keys (programmatic parity with the other caps).

* feat(taint): in-phase taint emit with sparse TAINTED/SANITIZES edges (#2083 U4)

run.ts pdg window: match-first fast path (solver only when a function has
both a matched source and sink) -> computeReachingDefs with the shared RD
fact derivation -> computeTaintFlows -> per-finding TAINTED (versioned
hop-encoded reason via the shared path codec, statement-level occurrence
identity) + per-kill SANITIZES, dedup-before-budget, truncate-and-warn.
All emit counters surfaced (aggregate warn for gaps/drops, debug for
volume); PROF gains taint=. Flag-off golden untouched.

* feat(mcp): explain tool for persisted taint findings (#2083 U6)

Anchorless calls enumerate the sparse TAINTED table (bounded, deterministic,
limit-clamped); anchored calls (file or symbol via resolveSymbolCandidates)
return full decoded hop detail. sinkKind rides a version-1 codec header
(1;<kind>|hops — no other persisted channel exists; U4/U6 ship together).
RepoMeta.pdg probe yields a no-taint-layer note instead of an error.
TAINTED/SANITIZES pinned OUT of VALID_RELATION_TYPES (KTD9a negative-
membership tests); generators + canonical skill docs + mirrors updated.

* test(taint): acceptance fixture battery, snapshots, and bench gates (#2083 U7)

pdg-repo taint-cases fixtures complete the six plan shapes; committed
findings/kills snapshot via a shared pure-path harness that also feeds the
AE2 exact-equality assertion (stored TAINTED == pure-path findings, the
no-explosion gate). New taint-dense bench scenario with four --check gates:
per-function findings pinned AT the cap, absolute reason-byte + site-bytes
disk ceilings (the load-bearing R10 gate), zero-match pass < 0.5x match-
dense, N-linearity. Pre-existing scenario baselines untouched.

* refactor(taint): share one pointKey helper across propagate + emit (#2083 review)

Extract pointKey(ProgramPoint) to cfg/reaching-defs.ts (colon-separated,
matching the codebase block:stmt id convention) and import it in both
propagate.ts and emit.ts, replacing the two divergent locals (':' vs '.').
Edge-id material now uses the colon form; ids are in-memory only and no
test asserts the pointKey segment shape.

* fix(taint): discriminate taint state by source occurrence (#2083 review)

Two distinct sources flowing into one variable at one def point no longer
collapse to a single TAINTED edge: the taint-state key gains a root
source-occurrence discriminator ({point, siteIndex} — the same fields
recordFinding's identity uses, excluding kind). Def->use fact lookup keys
on the source-independent (binding, def-point) portion. Same-source
multi-path flows still share one state so their exclusion sets intersect
(the raw arm soundly wins); termination holds (finite keys, monotone
shrink, no cross-source ping-pong). Restores the KTD6 identity contract.

* fix(mcp): route dotted symbol names in explain to symbol resolution (#2083 review)

The fileish classifier matched any dotted name (UserController.create)
as a file via its extension-like suffix, so symbol resolution never ran
and the tool returned a silent empty file-anchored result. Tighten the
classifier to require a path separator or a real source extension (derived
from the resolver's EXTENSIONS list, multi-language), so dotted/bare names
route to resolveSymbolCandidates (found / ambiguous / not-found).

* fix(mcp): gate explain no-taint-layer note on taintModelVersion (#2083 review)

An M1/M2-era --pdg index has meta.pdg defined (BasicBlock/REACHING_DEF
recorded) but no taintModelVersion and zero TAINTED rows. The probe keyed
on generic meta.pdg presence, so explain returned the generic empty note
instead of the actionable 'no taint layer — run analyze' hint. Gate on
meta.pdg?.taintModelVersion (the field M3 stamps) so an M2-era index gets
the layer hint; a taint-stamped index with no findings still gets the
generic note.

* fix(taint): sequence-expression value flows only the final operand (#2083 review)

A comma expression in value position (exec((log(x), 'safe'))) default-
descended, fanning every operand's occurrences into the enclosing sink
argument — over-tainting exec's arg 0 with x. Add an explicit walkValue
case that records earlier operands' uses with occurrence fan-out suppressed
(new FactAccumulator.suppressOccurrences) and routes only the last operand
through the value path. Sites-layer only; defs/uses/mayDefs byte-identical
(cfg + reaching-defs snapshots unchanged).

* perf(taint): FIFO head-cursor worklist + dedup before chainHops (#2083 review)

Replace queue.shift() (O(N) dequeue) with a strict-FIFO head cursor plus
order-preserving prefix reclamation; FIFO is load-bearing because chainHops
reads the live taints map whose parent/source/viaCall are rewritten
order-sensitively on monotone shrink, so hop determinism is dequeue-order
contingent. Extract findingKey() and dedup-check before chainHops in the
justify branch — already-recorded identities discard their hop chain
(first write wins), so the ancestry walk was pure waste. The else kill
branch is untouched. Findings + hops byte-identical (snapshot unchanged).

* perf(taint): O(1) member-read dedup via composite-key set (#2083 review)

addMemberRead rescanned the whole per-statement sites array per call to
dedup by (object, property, parent) — O(n^2) on member-read-dense
statements. Track a composite-key Set alongside sites for O(1) dedup.
(The require-literal join is already O(sites) with a no-op body on
non-require sites, so no early-exit is needed there.) Behavior identical:
harvest + model-match + taint snapshots unchanged.

* refactor(taint): drop test-only export; source taint caps via emit.ts (#2083 review)

Remove the sanitizerNeutralizes export (its only consumers were two test
assertions — inlined to entry.neutralizes membership). Re-export the
DEFAULT_PDG_MAX_TAINT_* caps from emit.ts and point run.ts at emit.ts, so
the pipeline's taint dependency surface is the single orchestration module
rather than reaching into propagate.ts.

* test(taint): extract the shared TS CFG/taint test harness (#2083 review)

The parse/collectFunctions/cfgOf/cfgsOf/importsFor harness was copied
byte-for-byte across four suites (harvest, model-match, propagate,
taint-emit). Promote it to test/helpers/ts-cfg-harness.ts and import it.
site-safety/reaching-defs carry a structurally different inlined builder
and are left as-is. Pure extraction, no assertion changes.

* test(mcp): harden explain limit-rejection battery (#2083 review)

Add NaN, Infinity, -Infinity, and a numeric string to the out-of-bounds
limit cases — a regression fence over the interpolated LIMIT, confirming
the Number.isInteger guard rejects every non-integer/non-finite/string
input before it reaches the query.
2026-06-12 07:35:09 +01:00
Gergő Magyar
bde340a5b4
feat(cfg): intra-procedural REACHING_DEF data-dependence layer (#2082) (#2160)
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* fix(cfg): route early exits through finally with target-relative threading (#2082 U2)

* feat(cfg): harvest per-statement def/use facts into the side channel (#2082 U1)

* feat(cfg): add reaching-definitions solver with GEN/KILL fixpoint + statement sweep (#2082 U3)

* feat(cfg): persist budgeted REACHING_DEF projection with RepoMeta coherence (#2082 U4)

* test(cfg): REACHING_DEF snapshot, pipeline both-sinks, and cache-seam coverage (#2082 U5)

* bench(cfg): reaching-defs scaling gates — dense-bindings + fact-fanout scenarios (#2082 U6)

* fix(mcp): exclude BasicBlock pseudo-symbols from detect_changes on pdg indexes (#2082 U7)

* style: prettier pass over M2 files

* fix(cfg): review-pass fixes — defKey overflow guard, catch-param block, class defs, intra-statement reads, graceful fact degradation (#2082)

- reaching-defs: STMT_STRIDE 2^16→2^21 + upfront aliasing bail-out; a use
  that shares its statement with a def now also sees the same-statement def
  (assign-and-test idiom was a taint false negative); drop dead posInOrder
- visitor: catch-param def gets its own once-executed block (prepending into
  a loop-header entry re-genned per iteration and killed loop-carried
  redefs); unresolved-label jumps now thread all active finallys; the
  finalizer-threading protocol moved to control-flow-context as shared
  helpers for future language visitors
- harvest: class declarations def their name (was a bogus use in JS, silent
  skip in TS); class-expression names stay internal
- emit: isEmitSafeCfg adds index==position contiguity; fact validation split
  into hasEmitSafeFacts so malformed facts degrade to CFG-only instead of
  dropping the function's whole CFG layer; facts-per-edge multiplier single
  source; lazy top-binding tally; dead solveMs removed
- run-analyze: pdgModeMismatch compares the key union structurally — new
  resolved knobs join the comparison automatically
- mcp: BasicBlock exclusion via id prefix (NULL-name rows of real symbols
  are no longer dropped) + same filter on the BM25 filePath fallback
- bench: rd ratio denominator clamped (gate no longer self-disables at fast
  small-N); PROF-gated pdg timing in run.ts

* test(run-analyze): model the M2 RepoMeta.pdg stamp in resolvePdgConfig defaults

The DEFAULTS constant lacked the maxReachingDefEdgesPerFunction field that
resolvePdgConfig resolves since the M2 stamp landed, failing two strict
toEqual expectations (the CI 'tests' job failures). Models M2 steady-state
equality; the M1-era-stamp upgrade path stays pinned in pdg-mode-flip.test.ts.

Finding P1-4 of review 4471987625 (#2160).

* test(cfg): reassign the shadowing fixture's bindings — fixes prefer-const CI errors

Both withShadowing let bindings now genuinely reassign (s = s + 1 per scope),
clearing the two prefer-const errors that failed quality/lint. Plain const
would change the binding kind the harvest test exercises; reassignment keeps
the let semantics and enriches the reaching-defs facts the snapshot pins
(snapshot + per-binding assertion updated accordingly).

Finding P2-6 of review 4471987625 (#2160).

* fix(cfg): validate entry/exit indices in the emit-safety guard

A corrupted side-channel element with an out-of-range entryIndex passed
isEmitSafeCfg and threw inside the reaching-defs RPO walk — caught by the
per-FILE try/catch, costing every sibling function's REACHING_DEF projection
instead of the one element (and logging a misleading message). entry/exit
join the guard's id-anchor checks.

Finding P3 (entryIndex) of review 4471987625 (#2160).

* fix(cfg): report the def-key stride bail-out as a distinct 'overflow' status

The STMT_STRIDE aliasing guard reused status 'truncated', so the emit warn
misnamed it as the fact-materialization limit (printing an unrelated maxFacts
value, including '(0)' when unlimited) and telemetry conflated the two. A
distinct 'overflow' status gets its own warn naming the actual cause; the
function's CFG layer is explicitly unaffected.

Finding P3 (stride-bail diagnosis) of review 4471987625 (#2160).

* perf(cfg): cache the nearest enclosing scope per node during the prescan

resolve() walked the AST parent chain per identifier — O(expression nesting
depth), quadratic on deeply-chained single-statement expressions in generated
code (not caught by any bench scenario, which scale blocks/bindings, not
expression depth). The prescan already visits every node once, so caching its
innermost scope makes phase-2 resolution O(scope-chain). Behavior-identical;
the parent-chain walk survives as fallback for prescan-unvisited nodes.

Finding P2 (resolve depth walk) of review 4471987625 (#2160).

* fix(cfg): stop harvesting initializer-less var declarators as defs

A bare `var x;` mid-function is hoisted and writes nothing at runtime, but
the harvester recorded a def — fabricating a kill of the live def in the
same block: `x = source(); var x; sink(x)` lost the source→sink fact (a
reaching-defs false negative). Defs now require an initializer for
variable_declaration declarators; let/const genuinely initialize and keep
their def.

Finding P2-5 of review 4471987625 (#2160).

* fix(cfg): unwrap parenthesized/non-null lvalue wrappers before def detection

`(x) += 1` and `(x)++` gated the def on the node type being exactly
'identifier', so the parenthesized form fell to the uses-only branch — the
def (and its kill) silently vanished. Wrappers that don't change the lvalue
(parenthesized_expression, TS non_null_expression) now unwrap at all three
lvalue sites.

Finding P3 (parenthesized lvalues) of review 4471987625 (#2160).

* fix(cfg): conditionally-evaluated defs are MAY-defs — gen without kill

A def inside a short-circuit right operand, ternary arm, logical assignment,
or switch case test was harvested as a must-def; the solver's total kill then
erased the prior def on the not-taken path — a taint false negative on core
idioms (`if (a && (x = clean())) {} sink(x)` lost source→sink;
`cached ?? (cached = load())` likewise). StatementFacts gains an optional
mayDefs field (conditional-context tracking in the harvester); the solver's
per-block GEN carries {set, kills} so a may-def UNIONS into the binding's set
instead of replacing it, in both the transfer and the statement sweep; the
emit fact-guard validates mayDefs indices; switch case tests harvest via the
conditional path.

Finding P1-1 of review 4471987625 (#2160).

* fix(cfg): model labeled statements generically — break keeps its real continuation

A break to a label the visitor didn't model (labeled non-loop block, the
OUTER label of a doubly-labeled construct) routed to EXIT, REMOVING the only
path that kept the pre-jump def live — a reaching-defs false kill the in-code
comment wrongly called sound. Loop/switch frames now carry their full label
LIST (`outer: inner: for` resolves both); a labeled non-loop statement gets
a break-target frame whose target is a synthesized join after the body; an
unlabeled break never matches a block frame; labels compose with finalizer
threading (a labeled break crossing a finally still threads it).

Finding P1-2 of review 4471987625 (#2160).

* fix(cfg): throw edges deliver ALL of a block's defs to the handler

The throw contribution was IN ∪ OUT — entry and final states only. The
intermediate defs of a multi-def coalesced block were invisible to the
handler, though they are exactly what the catch observes when a later
statement throws: `try { x = parse(a); x = normalize(x); } catch { sink(x) }`
lost the parse→sink fact (normalize throwing delivers parse's value). Throw
predecessors now contribute IN(from) ∪ allDefs(from) — a static per-block
all-def-sites map — which subsumes OUT; monotone and deterministic.

Finding P1-3 of review 4471987625 (#2160).
2026-06-11 05:49:39 +01:00
Gergő Magyar
5bf8a17cd5
feat(ingestion): add control-flow-graph layer for TS/JS (#2081) (#2099)
* feat(cfg): language-agnostic CFG construction core (#2081)

U1 of M1 (CFG layer). Plain JSON-serializable CFG data model (BasicBlockData/
CfgEdgeData/FunctionCfg — must survive the worker→main boundary + ParsedFile
store), a CfgBuilder accumulator (leaders→blocks→edges, synthetic ENTRY/EXIT,
idempotent edges), a ControlFlowContext (break/continue/switch + labeled-jump
target stacks), and a TraversalResult ({entry, dangling exits}). AST-agnostic
and unit-tested on the classic control-flow topologies (if/else, while back-edge,
mid-block return, labeled break/continue) the S2 spike validated; reachability
helper backs the R9 property test.

* feat(ingestion): U2 — TS/JS CFG visitor over tree-sitter AST (#2081)

Add the TS/JS CfgVisitor that walks a function's tree-sitter AST and drives
the U1 CfgBuilder to produce a serializable FunctionCfg. One visitor covers
both languages (shared grammar family).

Handles the classic CFG hazards explicitly (R2, R10):
- loops allocate a dedicated loop-exit block so `break` has a concrete target
  before the loop's successor is known; `continue`/back-edge close the loop
  (while, do-while, C-for with init-once + increment-as-continue-target,
  for-in, for-of)
- switch fallthrough falls out naturally: a non-breaking case yields exits we
  wire to the next case as `fallthrough`; a breaking case wires to the switch
  exit via ControlFlowContext
- try/catch/finally: normal completion AND exceptional flow both route through
  finally (post-domination); a conservative exceptional edge models that the
  protected region may raise to its handler (not just explicit `throw`)
- labeled break/continue resolve against the labeled loop's frame
- early return/throw wire to EXIT/handler and terminate their block

19 hazard tests (one per construct) + AC1 10-function fixture; all green.
No change to the committed U1 core or ControlFlowContext.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(ingestion): U3 — worker CFG build + cfgSideChannel + cache coherence (#2081)

Run the CFG visitor in the parse worker (where the AST lives), serialize the
per-function CFG onto a new ParsedFile.cfgSideChannel, and keep it coherent
across the disk-backed store and the warm/durable parse cache (R3, R4).

- gitnexus-shared parsed-file.ts: add `cfgSideChannel?: unknown` as a DISTINCT
  field from captureSideChannel (different producer/consumer/lifecycle; plain
  JSON data — blocks/edges deliberately lack the `nodeId` the store's interning
  reviver keys on, so no mis-interning).
- cfg/types.ts + visitors/typescript.ts: add CfgVisitor.isFunction so the worker
  enumerates functions (and applies the line budget) by a cheap node-type test.
- cfg/collect.ts (new): collectFunctionCfgs walks the tree, builds one CFG per
  function (nested included), applies maxFunctionLines (over-cap = skipped).
- language-provider.ts: add `cfgVisitor?: CfgVisitor<SyntaxNode>` hook;
  typescript.ts attaches it to both the TS and JS providers (shared grammar).
- parse-worker.ts: read pdg + pdgMaxFunctionLines from workerData (read once at
  init — the worker never sees PipelineOptions), gate the build, attach
  cfgSideChannel alongside captureSideChannel.
- parse-cache.ts: bump SCHEMA_BUMP 4→5 (ParsedFile shape changed) and fold the
  pdg flag into computeChunkHash so a pdg-off cached chunk is NOT reused on a
  --pdg run (the #2038-class warm-cache trap). Default path keeps its keys.
- worker-pool.ts + parse-impl.ts + pipeline.ts: thread pdg/pdgMaxFunctionLines
  PipelineOptions → WorkerPoolOptions → workerData, and into the chunk-hash key.

9 boundary tests: collect contract, JSON round-trip identity (no AST leakage),
the pdg cache-key guard, the line-cap skip, and the no-visitor gate. Full CFG
suite (U1+U2+U3) green; build clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(ingestion): U4 — emit BasicBlock + CFG within scope-resolution (#2081)

Emit persisted BasicBlock nodes + CFG edges from each ParsedFile's worker-built
cfgSideChannel, INSIDE scope-resolution's Phase-4 graph emission — the last
point where the worker-built CFGs are loaded (emitParsedFiles carries the
channel; the disk store is cleared right after the orchestrator returns). This
is the architecture the doc-review corrected to: a standalone post-`mro` phase
(the issue's literal subtask) provably reads empty data (KTD1).

- cfg/emit.ts (new): pure emitFileCfgs(graph, cfgs, maxEdgesPerFunction, onWarn).
  BasicBlock id = `BasicBlock:<filePath>:<functionStartLine>:<blockIndex>`
  (KTD3 — funcStart disambiguates blocks across functions in one file; no
  `name` column). CFG edge = CodeRelation type 'CFG' with the edge KIND
  (seq/cond-true/…) in `reason` (kinds can't be their own edge type). Per-
  function edge cap stops at the cap and warns with the dropped count — no
  silent truncation (R6/KTD6).
- run.ts: pdg-gated emit pass over emitParsedFiles after emitPostResolutionEdges
  (store still live); RunScopeResolutionInput gains pdg + pdgMaxEdgesPerFunction.
- phase.ts: thread ctx.options.pdg / pdgMaxEdgesPerFunction into the call.
- pipeline.ts: PipelineOptions.pdgMaxEdgesPerFunction.

6 tests: node/edge shape (KTD3 id, no name, type='CFG', kind in reason),
cross-function id uniqueness, AC2 reachability-from-ENTRY property, the edge
cap's no-silent-truncation contract, and empty-input no-op. Flag-off
byte-identity + full runPipelineFromRepo round-trip land in U7. Build clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cli): U5 — `--pdg` opt-in plumbing (CLI + .gitnexusrc → both sinks) (#2081)

Expose the CFG/PDG substrate as an opt-in and thread it from CLI/.gitnexusrc to
the single source of truth (PipelineOptions.pdg), which fans out to BOTH sinks
already wired in U3/U4: the worker build gate (workerData.pdg) and the
scope-resolution emit gate. Off by default (R7).

- cli/index.ts: `--pdg` commander flag.
- cli/analyze.ts: AnalyzeOptions.pdg + pass `pdg` into runFullAnalysis options.
- cli/analyze-config.ts: KEY_SPECS `pdg` (boolean) so `.gitnexusrc { "pdg": true }`
  normalizes and a non-boolean value fails closed with GitNexusRcError.
- core/run-analyze.ts: AnalyzeOptions.pdg → runPipelineFromRepo({ pdg }).

(The internal PipelineOptions/WorkerPoolOptions/workerData fields + the
parse-cache key fold landed in U3/U4; this unit adds the user-facing surface.
The budget knobs stay at internal defaults for M1.)

Tests: analyze-config pdg normalization + non-boolean rejection; opt-in.test.ts
covers the CLI/file merge precedence and that pdg perturbs the chunk-dispatch
key. The full worker-build + main-emit round-trip is the U7 integration test.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(ingestion): U7 — CFG acceptance fixtures, parity, end-to-end + docs (#2081)

Acceptance criteria for the M1 CFG layer:
- AC1: a 10-function TS fixture's CFG node/edge set matches a committed snapshot
  (cfg-snapshot.test.ts).
- AC2: every BasicBlock is reachable from its function ENTRY (property test over
  the emitted graph; the fixture has no dead code).
- AC3: hazard fixtures lock the classic-bug coverage — try/throw/finally
  post-domination + labeled break/continue resolution.
- AC4: the existing pipeline-graph-golden test stays byte-identical with --pdg
  off (verified; no UPDATE_GOLDEN), proving the opt-in adds zero default-run
  drift.
- End-to-end (pipeline-pdg.test.ts): runPipelineFromRepo({ pdg: true }) on a
  tiny repo emits BasicBlock nodes + CFG edges with both endpoints present —
  the true both-sinks proof (worker builds → store → scope-resolution emits);
  the default run emits zero.

Docs: CHANGELOG M1 entry, ARCHITECTURE "Optional CFG/PDG emission" subsection
(why emit is in-phase, not post-mro), README CFG language-support note.

Full CFG suite (U1–U7): 56 tests green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(ingestion): drop unused helper in cfg-snapshot test (#2081)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(review): apply ce-code-review autofix feedback (#2081)

Review (10 reviewers) confirmed OFF-path byte-identity (adversarial + golden)
and found defects all within the --pdg path. Fixes:

- P1 same-line BasicBlock id collision: add a start-column disambiguator to
  FunctionCfg + the id (`BasicBlock:<file>:<line>:<col>:<idx>`) so two functions
  sharing a start line no longer collide under first-writer-wins addNode.
- P1 worker crash-cascade: per-file try/catch around collectFunctionCfgs so a
  CFG-build throw cannot escape to the language-group catch and silently drop
  every remaining file in the group.
- P2 edge-cap drop now logs unconditionally (input.onWarn is validator-gated/
  silent in prod) — upholds the no-silent-truncation guarantee.
- P2 Array.isArray guard before the cfgSideChannel cast in run.ts.
- P2 maxFunctionLines default: worker applies DEFAULT_PDG_MAX_FUNCTION_LINES=2000
  when unset; caps forwarded through run-analyze AnalyzeOptions (closes the
  server-path drop).
- P3 README duplicate paragraph removed; `0`-vs-default docstrings corrected;
  CLI --pdg flag made language-neutral; reachableBlocks JSDoc corrected.
- Documented the break-through-finally + stacked-label CFG limitations.
- Tests: same-line id-collision regression, standalone throw→EXIT, dead-code-
  after-return, async/generator/method coverage, strengthened labeled-continue.

Refuted: the HTTP-500 getNodeQuery finding — M0 already shipped the BasicBlock
branch + name-floor (R12/web-safety handled).

CFG + analyze-config suites: 95 tests green; golden parity (AC4) byte-identical.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(ingestion): benchmark CFG construction + O(n) block-text accumulation (#2081)

Closes the M1 review's requires_verification perf gap ("no benchmark for
collectFunctionCfgs; a wall-time + cfgSideChannel byte-size regression gate
would catch the extendBlock concatenation before kernel scale").

- bench/cfg/measure.mjs (new): build-free tsx harness timing collectFunctionCfgs
  (parse once, reuse the tree) across three scaling scenarios — straight-line
  (extendBlock path), many-functions (collect walk), branchy (block/edge growth)
  — at 500→2000. Reports a wall-time scaling ratio AND a cfgSideChannel
  byte-size ratio, plus an order-independent sha256 over the emitted blocks/edges
  as the behavior gate. `--check` compares both ratios + the fingerprint against
  bench/cfg/baselines.json; mirrors the scope-capture / python-scope harnesses.
- .github/workflows/ci-tests.yml: run the gate on every test job (build-free,
  alongside the existing scope-capture guards) so an O(n^2) re-regression fails CI.
- cfg-builder.ts: structural fix for the one real hotspot the bench surfaced —
  accumulate basic-block text as fragments joined once in finish(), instead of
  concatenating onto a growing string per coalesced statement (O(n^2) → O(n)).
  Behavior-identical (the CFG fingerprint + the AC1 snapshot are unchanged).

Measured (post-fix): time ratios straight-line ~1.3, many-functions ~1.0,
branchy ~1.1 (all sub-quadratic; a true O(n^2) would be ~4.0). cfgSideChannel
bytes scale linearly (~1.0-1.04). 60 CFG tests green; build clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(ingestion): add memory + disk growth gates to the CFG benchmark (#2081)

Extend bench/cfg/measure.mjs beyond wall-time to the two other scalability
dimensions that matter at kernel scale:

- DISK growth: utf8 byte size of the serialized cfgSideChannel — exactly what a
  --pdg run writes onto every ParsedFile shard (durable store + parse cache).
- MEMORY growth: retained JS heap of the cfgSideChannel payload, measured by the
  release-delta method (heap held minus heap after dropping it) — robust to
  pre-existing garbage and dead-stable run-to-run. Needs `node --expose-gc`;
  without it the heap metric is null and its gate is skipped (local runs still
  work). ci-tests.yml now passes --expose-gc so the heap gate runs in CI.

Both gated on linear scaling in baselines.json (disk_bytes_budget / heap_budget
1.2-1.3). Measured: disk ~1.0-1.04, retained heap ~0.87-1.0 — both linear
(~1KB/function each; ~2MB heap / 1.6MB disk at 2000 functions, --pdg only).
Bumped REPS 7->15 to stabilize the noisier time signal and widened the coarse
time tripwire budgets (the disk/heap gates carry the tight regression detection).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ingestion): address tri-review + CFG-expert findings (#2081)

Corroborated findings from the tri-review (Codex + CE personas + GitNexus swarm
+ a CFG/program-analysis domain-expert lane). The OFF-path stays byte-identical;
all fixes are within the --pdg path or the benchmark.

- [Codex+CFG-expert] Exceptional `throw` edges now wire EVERY block in a try's
  protected region to the handler, not just the body ENTRY. A branched try body
  (`try { if (x) { use(t); } } catch`) previously left interior blocks with no
  path to `catch` — a taint false-negative into the handler for the M2 PDG pass.
- [Codex+CFG-expert] An unresolved labeled jump (a stacked outer label or a
  labeled non-loop block) now routes to the function EXIT instead of leaving a
  dangling sink — restores the single-exit invariant post-dominator/PDG
  computation needs.
- [Codex] computeChunkHash now folds pdgMaxFunctionLines/pdgMaxEdgesPerFunction
  into the chunk key (not just the pdg boolean), so a warm cache built under one
  cap is never served to a run with a different cap (#2038 class, extended to
  the budgets). Adds PdgCacheKey; boolean form kept for back-compat.
- [perf] visitTry resolves catch/finally in a single namedChild pass (the double
  `namedChildren.find` allocated two throwaway arrays).
- [adversarial] The bench `straight-line` scenario now runs at 2000->8000:
  output is a constant 4 blocks so disk/heap can't see the concat path, and at
  the old N a genuine O(n²) was masked by V8 cons-strings. Verified at the new N:
  the array-join impl ~1.0, a rope-optimized `+=` ~1.0 (correctly not flagged),
  a real O(n²) (re-join-every-append) ~3.8 — budget tightened 2.0->1.5.
- [adversarial+Codex] The bench `--check` now FAILS LOUDLY when run without
  `--expose-gc` instead of silently skipping the retained-heap gate.
- Doc: re-labeled the finally-bypass as a SOUNDNESS (false-negative) limitation
  tracked for M2, not mere "precision."

3 new regression tests (branched-try interior→handler, stacked-label→EXIT,
cap-fold key). 99 CFG tests pass; build clean; bench gate green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(parse-cache): clarify that SCHEMA_BUMP still invalidates caches once (#2099 F6)

The computeChunkHash comment claimed pdg-off warm caches "survive this
change untouched" — true for the key FORMAT, but misleading as an
upgrade-behavior promise: SCHEMA_BUMP 4→5 changes PARSE_CACHE_VERSION
and both stores hard-invalidate on it. Separate the two facts so the
next cache change isn't reasoned about from a false premise.

Review finding F6 (P3) of PR #2099 tri-review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): correct for-loop back-edge kinds when no increment clause (#2099 F5)

A for with a body but no increment emitted an unconditional
header→header 'loop-back' self-edge (a path that never executes the
body) while the real back-edge body→header was labeled 'seq'. Any
consumer identifying loops via reason='loop-back' picked the phantom
edge and excluded the body from the natural loop.

Gate the self-edge on the body being absent (the one case where the
header genuinely re-tests itself) and carry 'loop-back' on the body's
exits when they ARE the back-edge, matching visitWhile/visitForIn.

Review finding F5 (P3) of PR #2099 tri-review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): treat an empty catch clause as a real handler (#2099 F2)

visitTry keyed handler semantics off the traversal result — null for an
empty body, since visitSeq([]) returns null — instead of the syntactic
clause. An empty `catch {}` was therefore treated as NO catch: the
swallowed exception escaped to the outer handler/EXIT, the no-catch
re-propagation misfired past finally, and code after a try whose body
always throws became unreachable from ENTRY — a hard false-negative
source for the M2 taint pass, on an extremely common pattern.

Synthesize one empty block spanning the clause (entry == sole exit)
when the catch body traverses to null, before the protected region is
walked. Exception flow lands in it and rejoins the normal continuation;
all downstream wiring (handler selection, finally routing, the !catchRes
re-propagation gate) operates on the syntactically-correct shape.

Review finding F2 (P2, reproduced) of PR #2099 tri-review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): guard CFG emission per element, not just per outer array (#2099 F4)

The cfgSideChannel guard checked only Array.isArray before casting to
FunctionCfg[] — its own comment promised a wrong-shape value would
'skip emission, not throw a TypeError mid-graph-build', but a malformed
ELEMENT sailed through. Worse, the obvious-looking failure shape never
throws at all: emitFileCfgs string-templates any edge endpoint into the
BasicBlock id and graph inserts are no-throw, so a non-integer endpoint
silently became a dangling 'BasicBlock:…:undefined' edge that degrades
the DB rel-pair COPY to row-by-row fallback inserts much later.

Layered fix matching house precedents (parsedfile-store reviver,
worker-side per-file catch): a per-element shape+content predicate
(arrays + integer edge endpoints) that warns and skips malformed
elements while valid siblings still emit, plus a per-file try/catch
backstop for shapes that genuinely throw (e.g. a null inside blocks).

Review finding F4 (P3) of PR #2099 tri-review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(parse-cache): drop emit-time edge cap from the pdg chunk key (#2099 F3)

pdgMaxEdgesPerFunction is applied exclusively in emitFileCfgs during
scope-resolution on the main thread — the worker never receives it
(workerData carries only pdg + pdgMaxFunctionLines), so the cached
worker output is byte-identical across cap values. Folding it into the
chunk key (added by a prior review round) only converted a free knob
into a repo-sized cost: every cap change forced a full re-parse and a
durable-store rewrite of unchanged data.

Keep pdg + maxFunctionLines (genuinely worker-visible, shape the cached
cfgSideChannel) and document the classification test in the PdgCacheKey
doc comment so the next option gets sorted deliberately: worker-shard
inputs go in this key; persisted-graph-only inputs belong in the
RepoMeta pdg stamp (F1). Chunks written under the old ns string miss
once and prune — no migration needed.

Review finding F3 (P2) of PR #2099 tri-review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(analyze): record pdg config in RepoMeta; force full writeback on mode flip (#2099 F1)

Running --pdg against an already-indexed repo silently persisted ~zero
CFG: incremental eligibility had no pdg term, RepoMeta recorded no
mode, and extractChangedSubgraph keeps only changed-file nodes — on a
no-change --pdg re-run every freshly built BasicBlock was dropped from
the written subgraph ('Incremental: changed=0', run succeeds, zero
rows). The converse flip left zombie mixed-coverage blocks only --force
could clean. Worse, a clean-tree flip hit the alreadyUpToDate fast path
and never ran the pipeline at all.

- RepoMeta gains an additive-optional pdg stamp ({maxFunctionLines,
  maxEdgesPerFunction}, resolved values; absent ≡ pdg-off, which covers
  every legacy meta). No INCREMENTAL_SCHEMA_VERSION bump — that would
  force a one-time full rebuild for everyone. The end-of-run meta is a
  fresh literal, so omitting the field on a pdg-off run is what clears
  the stamp after an on→off flip.
- pdgModeMismatch (pure, exported) compares the resolved triple; the
  flip check sits before the fast path and always logs its notice (not
  gated on options.force — --skills implies force with no message of
  its own), naming the .gitnexusrc pdg key that pins the mode.
- The full-rebuild branch now writes the incrementalInProgress dirty
  flag (toWriteCount: 0 sentinel) before the wipe whenever a prior meta
  exists, mirroring the incremental branch. This closes the crash
  window where a rebuild dying between the bulk load and saveMeta left
  meta/DB inconsistent and the fast path certified zombie (or missing)
  CFG rows indefinitely — and incidentally closes the same pre-existing
  hole for user --force runs. Recovery log reworded accordingly.

Tests: pdg-mode-flip.test.ts (real git + LadybugDB; primary assertion
is a direct BasicBlock table count — meta.stats aggregates
nondeterministic Community/Process rows) covering off→on, steady-state
fast path, on→off zombie cleanup, cap-change rebuild, and dirty-flag +
flip composition; pure-helper tests for default resolution and the
0=unlimited carve-out.

Review finding F1 (P1) of PR #2099 tri-review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-10 19:26:45 +01:00
Gergő Magyar
7eaeb0a0c4
feat: multi-branch indexing and branch-scoped querying (#2106) (#2137)
Some checks are pending
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* feat(git): add getCurrentBranch + resolveRefToCommit helpers (#2106)

* feat(storage): branch-scoped getStoragePaths + branchSlug + resolveBranchPlacement (#2106)

* feat(analyze): branch-aware indexing — per-branch slot, no overwrite (#2106)

* feat(registry): nest non-primary branches under one path entry (#2106)

* feat(mcp): optional branch scope on query tools + list_repos branches (#2106)

* feat(cli): --branch on analyze + query/context/impact/cypher/detect-changes (#2106)

* feat(cli): branch-aware list/status + per-branch staleness meta (#2106)

* fix(review): apply autofix feedback

- guard analyze against --branch != checked-out branch (prevents writing one
  branch's working tree into another branch's index slot)
- fix branch-handle pool reinit thrash (track observed indexedAt by lbugPath,
  since applyBranchScope returns fresh handles)
- remove dead resolveRefToCommit helper (staleness uses HEAD vs branch meta)
- RepoListing.branches -> Omit<BranchSummary,'stats'> for type cohesion
- add tests: branchSlug traversal containment, --branch mismatch reject,
  callTool branch threading, legacy-entry branch routing, status detached/stale

* fix(review): address tri-review findings (#2106)

- P1 data-loss: a detached-HEAD re-analyze (CI's actions/checkout default) no
  longer strips the primary's meta.branch stamp; preserve it so a later branch
  analyze cannot claim & overwrite the flat/primary index. +cascade integration test
- P2: capture validateBranchName's trimmed return for --branch so a
  whitespace-padded value no longer false-rejects on-branch or ghosts an index
- F1: on a lost/rebuilt registry, a branch run reconstructs the primary
  top-level entry from the flat meta, not the feature branch's meta

* fix(storage): only trust a non-empty-string flatMeta.branch (#2106 R5)

* fix(analyze): warn when the default branch is not the primary index (#2106 R8)

* fix(mcp): resolve --branch <primary> on a legacy unstamped flat index (#2106 R4)

* feat(cli): gitnexus clean --branch to remove a single branch index (#2106 R7)

* fix(mcp): evict orphaned branch pools on unregister/clean (#2106 R3)

* fix(analyze): union per-branch cache keys so a branch switch keeps shards (#2106 R6)

* fix(analyze): normalize the auto-detected branch label via sanitizeDetectedBranch (#2106 R1)

* fix(cli): skip AGENTS.md base_ref refresh for a non-primary branch fast path (#2106 R2)

* fix(storage): atomic writeRegistry + re-read-before-write to narrow the registry race (#2106 R9)

* refactor(storage): extract branch primitives to branch-index.ts (#2106 R10)
2026-06-10 10:24:40 +01:00
Jorrin
96578aa4a8
feat: add optional limit arg to --embeddings flag (closes #382) (#1375) 2026-05-06 16:31:28 +01:00
Gergő Magyar
0418cbb347
fix(cli): keep GitNexus ignores inside .gitnexus (#1248)
Some checks are pending
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* fix(cli): keep GitNexus ignores inside .gitnexus

Avoid mutating analyzed repositories' root .gitignore while keeping generated GitNexus state untracked via .gitnexus/.gitignore.

Made-with: Cursor

* fix(cli): also use git info exclude for GitNexus storage

When an analyzed repo has a real .git directory, add .gitnexus/ to .git/info/exclude so local Git metadata ignores generated storage without touching root .gitignore.

Made-with: Cursor

* fix(cli): keep skip-git subdir indexes ignored

Ensure full analyze always writes the internal GitNexus ignore file so parent Git repositories stay clean for --skip-git subdirectory indexes.

Made-with: Cursor
2026-05-01 16:46:05 +01:00
Copilot
2b0392cd83
feat(analyze): preserve existing embeddings by default; --force regenerates them; add --drop-embeddings opt-out (CLI + HTTP API) (#1055)
* Initial plan

* fix(analyze): preserve existing embeddings by default; add --drop-embeddings opt-out

Agent-Logs-Url: https://github.com/abhigyanpatwari/GitNexus/sessions/da1da041-afcd-4d38-8a2f-39ca52a462ff

Co-authored-by: magyargergo <11230420+magyargergo@users.noreply.github.com>

* analyze: --force on embedded repo now regenerates embeddings (preserve+top-up)

Agent-Logs-Url: https://github.com/abhigyanpatwari/GitNexus/sessions/e2759765-b8f6-453a-8c28-595439d23cb4

Co-authored-by: magyargergo <11230420+magyargergo@users.noreply.github.com>

* analyze: wire dropEmbeddings into HTTP API; log cache-load failures; extract pure deriveEmbeddingMode + behavioral tests; sync GUARDRAILS.md

Agent-Logs-Url: https://github.com/abhigyanpatwari/GitNexus/sessions/7d88e595-cbd8-47b2-ba4f-fb5b9a60cda4

Co-authored-by: magyargergo <11230420+magyargergo@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: magyargergo <11230420+magyargergo@users.noreply.github.com>
2026-04-24 13:07:40 +01:00
Gergő Magyar
fd7fb5bf1f
feat: unify web and cli ingestion pipeline (#536)
* feat: add server-side ingestion API (POST /api/analyze, SSE progress)

Extract core analysis orchestration from CLI into shared run-analyze.ts
module. Add server-side analyze endpoints so the web app can trigger
ingestion via HTTP instead of running the full pipeline in-browser.

New files:
- src/core/run-analyze.ts — shared runFullAnalysis() orchestrator
- src/server/analyze-job.ts — job manager (single-slot, dedup, SSE events)
- src/server/analyze-worker.ts — forked child process (8GB heap, IPC)
- src/server/git-clone.ts — shallow clone/pull with SSRF protection

API endpoints:
- POST /api/analyze — start analysis (returns 202 + jobId)
- GET /api/analyze/:jobId — poll job status
- GET /api/analyze/:jobId/progress — SSE progress stream

Security: URL validation blocks private IPs and non-HTTP schemes.
Path validation requires absolute paths. Git stderr not leaked to API.

* feat(web): add server-side analyze UI (Phase 2)

Add "Analyze on Server" flow to the web app's Server tab so users
can trigger server-side ingestion from the browser. On completion,
the graph is automatically loaded via the existing connectToServer flow.

New files:
- AnalyzeProgress.tsx — progress bar with phase label, elapsed time, cancel

Modified files:
- backend.ts — startAnalyze(), streamAnalyzeProgress() SSE client
- DropZone.tsx — analyze URL input + button below Connect section
- App.tsx — onServerAnalyze handler wires analyze -> connect flow

* feat: add job cancellation, timeout, and child process tracking (Phase 3)

- DELETE /api/analyze/:jobId — cancel running analysis (SIGTERM to worker)
- 30-minute timeout kills long-running workers automatically
- Child process refs tracked in JobManager for cleanup on shutdown
- dispose() kills all active children on SIGINT/SIGTERM
- Web cancel button now calls server DELETE endpoint
- cancelAnalyze() added to web backend client

* refactor(web): remove browser ingestion pipeline (Phase 4)

Delete 16 duplicated ingestion files, 2 unused service files
(git-clone, zip), and tree-sitter parser-loader from gitnexus-web.
All ingestion now runs server-side via POST /api/analyze.

Deleted (18 files, ~5,000 lines):
- core/ingestion/*.ts (16 pipeline processors)
- core/tree-sitter/parser-loader.ts (WASM tree-sitter loader)
- services/git-clone.ts (isomorphic-git client-side clone)
- services/zip.ts (JSZip extraction)

Simplified:
- DropZone.tsx — server-only (removed ZIP/GitHub tabs)
- ingestion.worker.ts — removed runPipeline/runPipelineFromFiles
- useAppState.tsx — removed pipeline callbacks
- App.tsx — removed handleFileSelect/handleGitClone
- main.tsx — removed Buffer polyfill for isomorphic-git
- types/pipeline.ts — removed PipelineResult/serialize helpers

Kept: cluster-enricher.ts (LLM enrichment, still used by worker)

Dependencies now removable: web-tree-sitter, isomorphic-git,
@isomorphic-git/lightning-fs, jszip (estimated 3-4MB bundle savings)

* refactor(web): sync graph schema from CLI + delete WASM grammars

Sync graph/types.ts and lbug/schema.ts from the CLI (source of truth)
to the web module so the browser LadybugDB can handle all node and
relationship types the server pipeline produces.

Synced types: Route, Tool, Section node labels; HANDLES_ROUTE, FETCHES,
HANDLES_TOOL, ENTRY_POINT_OF, WRAPS, QUERIES relationship types;
description fields on Function/Class/Interface/Method/CodeElement.

Deleted: public/wasm/ directory (14 tree-sitter WASM grammars + core).
Removed deps: web-tree-sitter, isomorphic-git, @isomorphic-git/lightning-fs,
jszip, buffer, @types/jszip (~3-4MB bundle savings).

* feat: create gitnexus-shared package for unified type definitions

Create a new gitnexus-shared package that is the single source of truth
for types shared between the CLI and web modules:

- SupportedLanguages enum (15 languages)
- Graph types: NodeLabel, NodeProperties, RelationshipType, GraphNode, GraphRelationship
- Schema constants: NODE_TABLES, REL_TYPES, REL_TABLE_NAME, EMBEDDING_TABLE_NAME
- Pipeline types: PipelinePhase, PipelineProgress

Both gitnexus (CLI) and gitnexus-web import from gitnexus-shared via
file: dependency. Each package re-exports and extends with platform-specific
additions (CLI: KnowledgeGraph with mutation methods; Web: simpler KnowledgeGraph).

This ensures types can never drift between packages — adding a new
language, node type, or relationship type in gitnexus-shared automatically
propagates to both consumers.

* refactor: import shared types directly from gitnexus-shared at call sites

Replace all re-export patterns with direct imports from gitnexus-shared.
72 files updated across CLI and web:

- SupportedLanguages: 49 CLI files now import from 'gitnexus-shared'
  instead of '../config/supported-languages.js'
- GraphNode, GraphRelationship, NodeLabel: 22 CLI + 10 web files now
  import from 'gitnexus-shared' instead of local re-export wrappers
- NODE_TABLES: api.ts imports from 'gitnexus-shared'
- PipelineProgress: useAppState.tsx imports from 'gitnexus-shared'

Local types.ts files now only define platform-specific KnowledgeGraph
(CLI has mutation methods, web has add-only). No more re-exports.

* fix: update lock files for gitnexus-shared, remove stale vite polyfills

Add gitnexus-shared@1.0.0 to lock files so npm ci succeeds in CI.
Remove buffer polyfill and global define from vite.config.ts (isomorphic-git was removed).

* fix(security): add write guard to HTTP /api/query, fix CORS proxy bypass

- Add isWriteQuery() check to POST /api/query handler — blocks CREATE,
  DELETE, SET, MERGE, DROP, etc. via HTTP API (guard was only in MCP
  pool adapter and browser-side, not the HTTP server path)
- Extend CYPHER_WRITE_RE with CALL, INSTALL, LOAD keywords
- Fix CORS proxy subdomain bypass: endsWith('github.com') allowed
  'evil-github.com'. Now requires exact match or '.github.com' suffix

* feat(server): enhance /api/search with enrichment, add /api/grep, strip graph content

- POST /api/search: add mode param (hybrid|semantic|bm25), server-side
  enrichment returns connections/cluster/processes per result in one call
  (collapses 31 sequential HTTP calls to 1 for the agent search tool)
- GET /api/grep: regex search across indexed file contents, eliminates
  need to transfer all file contents to browser
- GET /api/graph: strip content field by default (80-95% payload
  reduction). Use ?includeContent=true for backward compat
- Add LRU cache invalidation hook point for future caching

* feat(server): add /api/embed endpoint for server-side embedding generation

- POST /api/embed: triggers embedding pipeline via onnxruntime-node
  with JobManager for single-slot concurrency, timeout, and dedup
- GET /api/embed/:jobId: poll job status
- GET /api/embed/:jobId/progress: SSE stream with heartbeat, event IDs,
  and X-Accel-Buffering:no header for proxy compatibility
- DELETE /api/embed/:jobId: cancel running embedding job
- Maps embedding pipeline phases (ready→complete, error→failed) to
  JobManager status conventions

* feat(web): create consolidated BackendClient module

Single HTTP client replacing backend.ts, server-connection.ts, and
worker HTTP helpers. Includes:
- Typed methods: runQuery, search (enriched), grep, readFile, connect
- Generic streamSSE<T> utility extracted from analyze progress pattern
- BackendError with discriminated code field (network/server/client/timeout)
- Embed API: startEmbeddings, streamEmbeddingProgress, cancelEmbeddings
- Search with mode param (hybrid|semantic|bm25) and enrichment

* refactor(web): rewrite Graph RAG tools for backend-only HTTP queries

- Search tool: uses enriched /api/search (1 call replaces 31 sequential queries)
- Cypher tool: removes browser-side embedding; {{QUERY_VECTOR}} routes to
  /api/search with mode:'semantic' instead of local transformers.js
- Grep tool: uses /api/grep instead of in-memory fileContents map
- Read tool: uses /api/file instead of fileContents map lookup
- Impact tool: getCallSiteSnippet now async via /api/file
- createGraphRAGTools now accepts GraphRAGBackend interface instead of
  7 separate function params + fileContents map
- createGraphRAGAgent simplified to (config, backend, context?)
- Removed imports: embedder, lbug/schema (replaced with gitnexus-shared)
- Net: -205 lines

* refactor(web): delete WASM infrastructure, remove 7 packages (-5242 lines)

Delete browser-side LadybugDB, embeddings, search, and worker:
- gitnexus-web/src/core/lbug/ (adapter, csv-generator, schema, query-result)
- gitnexus-web/src/core/embeddings/ (embedder, pipeline, text-gen, types)
- gitnexus-web/src/core/search/ (bm25-index, hybrid-search)
- gitnexus-web/src/workers/ingestion.worker.ts (828 lines)
- gitnexus-web/src/services/server-connection.ts (merged into backend-client)
- gitnexus-web/src/types/lbug-wasm.d.ts

Remove packages: @ladybugdb/wasm-core, @huggingface/transformers,
comlink, minisearch, vite-plugin-wasm, vite-plugin-top-level-await,
vite-plugin-static-copy

Update vite.config.ts: remove WASM plugins, COOP/COEP headers,
worker config, optimizeDeps exclude

Update imports: App.tsx, DropZone, Header, AnalyzeProgress,
BackendRepoSelector, useBackend → backend-client

* refactor(web): replace Worker/Comlink with direct BackendClient calls

- useAppState: remove Worker instantiation, Comlink.wrap, apiRef.
  All queries now go through BackendClient HTTP functions directly.
- Agent runs on main thread (I/O-bound LLM streaming, not CPU-bound)
- initializeAgent: creates GraphRAGAgent with GraphRAGBackend interface
  bound to BackendClient methods (runQuery, search, grep, readFile)
- startEmbeddings: calls POST /api/embed + SSE progress instead of
  running browser-side transformers.js pipeline
- switchRepo: no longer loads graph into WASM DB or extracts fileContents
- App.tsx: handleServerConnect simplified (no fileContents, no loadServerGraph)
- Delete old backend.ts (replaced by backend-client.ts)
- Net: -396 lines

* fix(web): fix await-in-map build error in agent streaming

Move dynamic import of AIMessage outside .map() callback to avoid
"await can only be used inside an async function" build error.

* fix(web): remove stale apiRef references that broke chat functionality

sendChatMessage referenced apiRef.current (deleted Worker ref) which
would throw TypeError. Replaced with agentRef.current guard since agent
now runs on main thread.

* fix(server): dispose embedJobManager on shutdown, fix job mutation

- Add embedJobManager.dispose() to shutdown handler (was missing,
  causing cleanup timer to keep Node process alive)
- Replace direct job.repoName/status mutation with updateJob() to
  ensure SSE event emission for initial status change

* fix(server): parameterize Cypher, harden grep, unify SSE endpoints

- Search enrichment: replace string interpolation with executePrepared()
  using $nid parameter binding to prevent Cypher injection
- Add executePrepared() to core lbug-adapter (prepare/execute pattern)
- /api/grep: add 200-char pattern length limit (ReDoS protection),
  search files on disk instead of loading entire corpus into memory
  (constant memory usage regardless of repo size)
- Extract mountSSEProgress() shared helper for SSE streaming — both
  analyze and embed endpoints now have consistent heartbeat (30s),
  event IDs (reconnection support), and X-Accel-Buffering header

* refactor(web): remove dead code from Worker-era architecture

- Remove loadServerGraph no-op function, interface member, and all consumers
- Remove testArrayParams stub and interface member
- Remove fileContents state from GraphStateProvider (never populated in
  server-side architecture)
- Remove forceDevice parameter from startEmbeddings (server-side, no device choice)
- Replace phantom EmbeddingProgress type with inline { phase, percent }
- Replace resolvePathFromContents (needed fileContents Map) with graph-based
  file path resolution using filePathIndex built from graph nodes
- Fix: AI citation grounding ([[file.ts:10]]) now works via graph node lookup
  instead of broken fileContents-based resolution

* fix(web): use streamAgentResponse for full tool_call/reasoning streaming

Replace naive agent.stream() loop that only handled content chunks with
streamAgentResponse() generator from agent.ts. This properly routes:
- reasoning tokens (before/between tool calls)
- tool_call events (name, args, status)
- tool_result events (completed tool output)
- content tokens (final answer after all tools done)

Previously the onChunk handler for tool_call/tool_result/reasoning was
dead code since the streaming loop only emitted content events.

* fix(web): resolve CI type errors from dead code removal

- Import GraphNode/GraphRelationship from gitnexus-shared in graph.ts
  (not re-exported from local types.ts)
- Add Route, Tool entries to NODE_COLORS and NODE_SIZES constants
- Add PipelineResult type to web types/pipeline.ts
- Remove fileContents from CodeReferencesPanel and RightPanel
- Remove testArrayParams and forceDevice from EmbeddingStatus
- Remove forceDevice args from startEmbeddings() calls in App.tsx
- Fix embeddingProgress property accesses for simplified type

* fix(ci): add setup-gitnexus-web action, build shared once per job

- Remove prepare script from gitnexus-shared (tsc not available during
  npm ci of consuming packages)
- Create .github/actions/setup-gitnexus-web composite action: builds
  gitnexus-shared then runs npm ci for gitnexus-web
- setup-gitnexus action: already builds gitnexus-shared for CLI jobs
- ci-quality typecheck-web: uses setup-gitnexus-web (DRY)
- ci-e2e: uses setup-gitnexus-web (DRY)
- ci-tests: gitnexus-shared already built by setup-gitnexus, just
  install web deps without rebuilding

* fix(ci): use prepare script so gitnexus-shared builds during npm ci

Move typescript from devDependencies to dependencies in gitnexus-shared
so the prepare script (tsc) works when npm resolves file: deps during
npm ci. No GHA modifications needed — npm handles the build lifecycle
automatically.

Remove manual gitnexus-shared build steps from setup-gitnexus and
setup-gitnexus-web actions.

* fix(ci): build gitnexus-shared explicitly in setup actions

The file: dependency protocol doesn't reliably run prepare scripts
because devDependencies aren't installed first. Instead of fragile
lifecycle hacks, build gitnexus-shared explicitly in both setup actions:
- setup-gitnexus: npm install && npm run build in gitnexus-shared/
- setup-gitnexus-web: same, before npm ci in gitnexus-web/
- ci-tests: shared already built by setup-gitnexus, web just npm ci

No prepare script, no dist in git, no typescript as a prod dependency.

* fix: remove CALL from CYPHER_WRITE_RE — breaks FTS and vector search

CALL is used by read-only procedures: CALL QUERY_FTS_INDEX(...) and
CALL QUERY_VECTOR_INDEX(...). Adding it to the write guard blocked all
FTS search, causing 3 test failures. The database is opened in read-only
mode as defense-in-depth against write procedures via CALL.

Keep INSTALL and LOAD in the blocklist (genuinely dangerous).

* fix(web): update vercel.json for gitnexus-shared, remove COOP/COEP

- Add installCommand that builds gitnexus-shared before installing
  web deps (Vercel doesn't know about the monorepo file: dependency)
- Remove Cross-Origin-Opener-Policy and Cross-Origin-Embedder-Policy
  headers (no longer needed — WASM LadybugDB removed)

* fix(web): update tests for deleted modules

- Delete csv-generator.test.ts (tests deleted WASM-only csv-generator)
- Update security-guards.test.ts: import NODE_TABLES/REL_TYPES from
  gitnexus-shared instead of deleted src/core/lbug/schema
- Update server-connection.test.ts: import normalizeServerUrl from
  backend-client, remove extractFileContents tests (function deleted)

* fix(e2e): remove Server tab click — UI is now server-only

The DropZone no longer has ZIP/GitHub/Server tabs (browser ingestion
was removed). The server URL input is directly visible on the landing
page. Update e2e test to skip the tab click and go straight to input.

All 5 e2e tests pass locally.

* refactor: use gitnexus-shared for PipelinePhase/PipelineProgress types

CLI was duplicating PipelinePhase and PipelineProgress locally instead
of importing from gitnexus-shared. Updated all consumers to import
directly. Also removed dead code: SerializablePipelineResult,
serializePipelineResult(), deserializePipelineResult().

* fix(server): address PR #536 review — security, race conditions, dead code

- Fix path traversal in POST /api/analyze: split into isAbsolute + normalize check
- Add shared repo lock (activeRepoPaths) preventing concurrent analyze+embed on same repo
- Fix 202 response returning actual job.status instead of hardcoded 'queued'
- Add 30-minute timeout for embedding jobs (was missing unlike analyze jobs)
- Fix DropZone calling startAnalyze without setting backend URL first
- Add SSE reconnect with exponential backoff (3 retries) and Last-Event-ID
- Fix normalizeServerUrl to return base URL (no /api suffix) — clear contract
- Delete dead code: proxy.ts, server-graph-hydration.ts, pipeline.ts re-export barrel
- Update LoadingOverlay to import PipelineProgress directly from gitnexus-shared

* fix(server): fix repo lock key mismatch and embed cancel race

- Use getStoragePath(targetPath) as lock key in analyze handler to match
  embed handler's entry.storagePath — keys now always align
- Guard embed completion: don't overwrite 'failed' with 'complete' when
  job was cancelled while pipeline was still running
- Remove unused jobType parameter from acquireRepoLock
- Log backend.init() errors instead of silently swallowing

* fix: add gitnexus-shared as a local dependency in package-lock.json

* refactor: move language detection to gitnexus-shared, add syntax highlighting for all 15 languages

Move getLanguageFromFilename() from CLI to gitnexus-shared with COBOL
support added. Add getSyntaxLanguageFromFilename() for Prism-compatible
syntax highlighting covering all 15 code languages plus auxiliary
formats (json, yaml, markdown, html, css, bash, sql, xml).

Refactor CodeReferencesPanel to use shared function instead of a local
30-line switch. Delete dead gitnexus-web/src/config/supported-languages.ts
(web already imports SupportedLanguages from gitnexus-shared).

* feat(web): add first-time user onboarding with auto server detection

Replace the manual "Connect to Server" panel with an automatic onboarding
flow that guides first-time users through starting the GitNexus server.

Server detection:
- useBackend hook polls via setTimeout chain (3s, no overlap)
- Page Visibility API pauses polling when tab is hidden
- SSE heartbeat (/api/heartbeat) for instant disconnect detection

Onboarding UI (OnboardingGuide.tsx):
- Step-by-step flow: copy command → run → auto-connect
- Smart command: shows `gitnexus serve` in dev, `npx gitnexus@latest serve` in prod
- Node.js version auto-detected from package.json via Vite define
- Faux terminal windows with copy-to-clipboard, platform tabs, polling indicator

Transitions (DropZone.tsx):
- Crossfade wrapper with snapshot pattern for smooth phase transitions
- Three phases: onboarding → success (1.2s hold) → loading → graph
- Auto-recovery: falls back to onboarding if server dies or connect fails

Server changes:
- GET /api/heartbeat: SSE endpoint for liveness detection
- GET /api/info: version, launch context, Node.js version
- npm run serve script for local development
- app.disable('x-powered-by') hardening

* feat(web): add repo analysis UI, SSE heartbeat, and review fixes

Repo analysis:
- AnalyzeOnboarding: empty-state card when server has zero repos
- RepoAnalyzer: GitHub URL + Local Folder tabs with browse button
- Header repo dropdown: click project badge to switch repos or analyze new
- DropZone 'analyze' phase integrated into Crossfade transitions

Reliability fixes from 5-agent review:
- Polling: stop scheduling timers when tab hidden, restart on visibility return
- Heartbeat: exponential backoff (1s/2s/4s, 3 retries) prevents graph loss on blip
- RepoAnalyzer: completion timer tracked in ref, cleaned up on unmount
- DropZone: standardized card padding (p-7), heading sizes (text-lg)

Accessibility:
- prefers-reduced-motion global CSS rule (WCAG 2.3.3)
- focus-visible rings on CopyButton
- cursor-pointer on all Header buttons
- Consistent rounded-xl on all dropdowns

Cleanup:
- Deleted dead AnalyzeSheet.tsx (219 LOC) and BackendRepoSelector.tsx (89 LOC)
- Fixed AnalyzeProgress lucide import (lucide-react → @/lib/lucide-icons)

* fix(server): resolve analyze worker fork crash in dev mode

The forked analyze worker was crashing immediately with exit code 1
when running via `npm run serve` (tsx). Two issues:

1. Worker path resolved to `analyze-worker.js` but only `.ts` exists
   in the source directory — the `.js` file is only in `dist/`.

2. On Windows, bare `--import tsx` in execArgv fails because Node's
   ESM resolver for --import uses the child's CWD, not the parent's
   node_modules. Windows also rejects raw paths as `d:` is not a
   valid URL scheme.

Fix: detect dev vs prod via `import.meta.url` extension. In dev mode,
resolve `tsx/esm` to an absolute `file://` URL via `pathToFileURL()`
anchored to the parent's `createRequire` context. This works on all
platforms and doesn't depend on the child's CWD or PATH.

Also captures child stderr for better crash diagnostics.

Verified: `POST /api/analyze` with GitHub URL completes successfully
in dev mode (tsx) — status goes from cloning → analyzing → complete.

* fix(server): add worker auto-retry, error handling, and crash diagnostics

Worker resilience:
- Auto-retry up to 2 times with exponential backoff (1s, 2s) on crash
- SSE progress shows "Retrying after crash (1/2)..." during retry
- Captures child stderr for crash diagnostics in failure message
- AnalyzeJob tracks retryCount per job

Server error handling:
- app.listen wrapped in Promise so EADDRINUSE/EACCES propagate cleanly
- serve.ts catches startup errors with friendly messages and exit code 1
- EADDRINUSE gets actionable guidance (stop other process or --port flag)
- Global uncaughtException/unhandledRejection handlers prevent silent exits
- DEBUG=1 env var shows full stack traces

* feat: add e2e tests for onboarding flows, worker retry, and error handling

E2E tests (onboarding.spec.ts — 11 tests):
- Flow 1: OnboardingGuide shown when server unreachable (6 tests)
- Flow 2: Auto-connect with success card, analyze phase for zero repos
- Flow 3: Analyze form — GitHub URL validation, Local Folder tab, tab switching
- Flow 4: Repo dropdown in exploring view (skipped without live server)

Updated server-connect.spec.ts:
- Replaced manual Connect button flow with auto-connect waitForGraphLoaded

Server resilience:
- Worker auto-retry (2 attempts with exponential backoff) on crash
- Friendly error messages for serve startup failures (EADDRINUSE etc.)
- Global uncaughtException/unhandledRejection handlers prevent silent exits
- app.listen wrapped in Promise for proper error propagation

* refactor(shared): enforce exhaustive language coverage via Record types

Replace the if/else chain in getLanguageFromFilename with two exhaustive
Record<SupportedLanguages, ...> maps:

- EXTENSION_MAP: every language → its file extensions
- SYNTAX_MAP: every language → its Prism syntax identifier

Adding a new member to the SupportedLanguages enum without adding it to
both maps now produces a TypeScript compile error:

  Property '[SupportedLanguages.NewLang]' is missing in type...

This matches the existing pattern in languages/index.ts (providers table)
which already uses `satisfies Record<SupportedLanguages, LanguageProvider>`.

Three compile-time enforcement points now exist:
1. EXTENSION_MAP in language-detection.ts (file extensions)
2. SYNTAX_MAP in language-detection.ts (Prism syntax identifiers)
3. providers in languages/index.ts (LanguageProvider instances)

* feat(web): load source code from server and scroll to selected line

CodeReferencesPanel now fetches file content via GET /api/file when a
node is selected, instead of showing "Code not available in memory".

- Fetches via readFile() from backend-client when selectedFilePath changes
- Shows loading spinner while fetching
- After content loads, auto-scrolls to the selected node's startLine
- Highlights the selected line range with a cyan left border
- Cancels in-flight fetch if selection changes before it completes

Also: refactored language-detection.ts to use exhaustive Record types
(EXTENSION_MAP and SYNTAX_MAP) so adding a new SupportedLanguages enum
member without implementing extensions/syntax is a compile error.

* feat: buffered file reading for Code Inspector

Server: GET /api/file now supports ?startLine=N&endLine=M for reading
a line range instead of the entire file. Returns { content, startLine,
endLine, totalLines }.

Client: readFile() returns ReadFileResult with metadata. When selecting
a symbol (function, class, method), fetches only ±50 lines around the
symbol's startLine/endLine instead of the full file. File nodes still
fetch the entire file.

SyntaxHighlighter startingLineNumber set from the buffer offset so line
numbers are correct even for partial reads.

* fix: adapt readFile callers to new ReadFileResult return type

tools.ts: readFile comes from GraphRAGBackend interface which returns
Promise<string> (the adapter in useAppState extracts .content), so
revert the { content } destructuring back to plain string assignment.

useAppState.tsx: wrap backendReadFile with { repo } options object
and extract .content to satisfy the GraphRAGBackend interface.

* fix(web): ensure new repos appear in list immediately after analysis

Two fixes:

1. DropZone: handleAnalyzeComplete now passes the repoName through to
   connectToServer so the specific newly-analyzed repo loads — not the
   server's default first repo.

2. App.tsx: fetchRepos() is now awaited BEFORE handleServerConnect in
   both the DropZone and Header flows. This ensures the repo list is
   populated before the exploring view renders, so the new repo appears
   in the header dropdown immediately without a page reload.

* feat: delete repos, re-analyze with force, select after analysis

Server — DELETE /api/repo:
- Acquires repo lock first (409 if analyze/embed in flight)
- Closes LadybugDB, deletes index + clone dir, unregisters, re-inits
- Lock released in finally block

Server — analyze complete:
- backend.init() must succeed before SSE complete fires
- If backend.init() fails, job is marked failed (not complete)

Web — Header repo dropdown:
- Re-analyze: calls POST /api/analyze with force=true, shows spinning
  icon + inline progress bar via SSE
- Delete: acquires lock, aborts any running re-analysis SSE for same
  repo, refreshes list, switches to next repo
- After analysis completes: refreshes repo list, connects to the
  specific repo by name, loads graph, shows in explorer
- Retry with 1.5s backoff on 404 (server may still be reinitializing)

Type safety:
- err: any → err: unknown + instanceof BackendError in retry loop
- Added missing BackendRepo + BackendError imports in App.tsx
2026-03-28 14:07:11 +00:00