The executor incremented a node's visit count on entry and refused the
visit once the count reached the limit, so a node with max_visits=N
executed at most N-1 times. The documented contract in
stages-and-nodes.mdx is "Max times this node can execute in a run",
and both published examples describe bounded retry loops under that
reading. A graph with max_visits=2 on a designed
one-correction loop therefore failed as "stuck in a cycle" before the
correction could run.
Check the completed-visit count before entry instead: a node with
max_visits=N now executes exactly N times, and the refused entry is
not reported as a visit, so the error's count names the executions
that actually happened. Also correct the nlspec example prose, which
claimed the workflow "moves on with the best result" at the limit;
exceeding max_visits fails the run.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Cumulative implement + simplify_fable diff recovered from the run's meta
branch (fabro/meta/01KY7YH7RYCJ1BDVTTP96ZA4HV, stage 006 diff.patch).
The run validated this tree clean: cargo nextest (7,007 passed), clippy,
fmt, TS client regen + typecheck, web tests (679 passed), docs check.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Add two lint rules so the graph format stops silently accepting
attributes that nothing reads:
- inert_attribute: handler-specific attributes (script, language,
duration, join_policy, max_parallel, output_schema, prompt) placed on
node types that never read them. Attributes read by several handlers
(timeout), resolved for every node (fidelity, retry_policy), or
injectable via model stylesheets (model, reasoning_effort, ...) are
deliberately excluded.
- parallel_branch_inert_attribute: fidelity/thread_id on parallel
branch nodes and fork->branch edges. Branch dispatch bypasses the
fidelity lifecycle, so these are dead letters today; the warning
points at the parallel node, where fidelity does take effect.
Also reconcile the loop_restart docs with actual executor behavior:
taking a loop_restart edge restarts from the target with a fresh empty
context (visit counts preserved), on success as well as failure; the
transient_infra guard applies only to failure crossings.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
## Summary
Secures Daytona custom snapshot creation by removing user-controlled
snapshot/image references and replacing them with deterministic names
Fabro computes internally. Docker image selection now uses
`image.docker`, while Daytona only accepts `image.dockerfile` for custom
snapshots and continues to use `daytona-medium` when no Dockerfile is
configured.
## Changes
- Replaces public `image.ref` config/API shape with Docker-specific
`image.docker` across Rust settings, OpenAPI, generated TypeScript
client, docs, defaults, examples, and web samples.
- Adds Daytona snapshot identity generation using HMAC-SHA256 over a
canonical manifest keyed by the Daytona API key, producing
`fabro-<uuid>` snapshot names without exposing Dockerfile text or key
material.
- Routes Daytona custom Dockerfiles, including devcontainer-generated
Dockerfiles, through the same computed identity path before calling
Daytona snapshot APIs.
- Updates sandbox initialization events and store projections so
initialized run state can show the resolved image and computed Daytona
snapshot after startup.
- Updates legacy config migration behavior so Docker image refs map to
`image.docker`, while Daytona legacy snapshot names are not preserved.
## Breaking Changes
- `image.ref` is no longer accepted in new environment config.
- Docker environments should use `image.docker` for image selection.
- Daytona environments reject `image.docker`; use `image.dockerfile` to
request a custom computed snapshot.
## Verification
- `cargo build -p fabro-api`
- `cd lib/packages/fabro-api-client && bun run generate`
- `cd lib/packages/fabro-api-client && bun run typecheck`
- `cd apps/fabro-web && bun run typecheck`
- `cargo +nightly-2026-04-14 fmt --check --all`
- `cargo +nightly-2026-04-14 clippy --workspace --all-targets -- -D
warnings`
- `ulimit -n 4096 && cargo nextest run --no-fail-fast -p fabro-cli -p
fabro-config -p fabro-sandbox -p fabro-workflow -p fabro-store -p
fabro-server -p fabro-api`
- `cargo insta pending-snapshots`
---
[](https://github.com/EveryInc/compound-engineering-plugin)
🤖 Generated with GPT-5 via [Codex](https://openai.com/codex)
The smoke and implement-plan workflows ran cargo clippy without a
toolchain prefix, so on the Daytona snapshot they fell through to the
baked-in stable toolchain. clippy.toml now uses allow-unwrap-types
(added in clippy 1.95), which the stable in fabro-v7 doesn't recognize.
Pin every fmt and clippy invocation to nightly-2026-04-14 so they match
.github/workflows/rust.yml. Also update the public repl-handoff example
to keep the documented template consistent.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Reflect Docker as the default sandbox provider, add `skip_clone` for
clone-based providers, document the `[run.sandbox.docker]` config
table, and update tutorial command lines from `files-internal/...` to
`docs/internal/...`. Bump the docs skill watermark to the latest synced
commit.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Invert the docs convention so the Mintlify-published site lives under
docs/public/ and internal artifacts (strategy docs, brainstorms, plans,
etc.) sit at docs/ root or docs/internal/. Tools that default to writing
into docs/ now land in the catch-all instead of leaking into the
published tree.
- Move Mintlify content (administration/, agents/, api-reference/,
changelog/, core-concepts/, examples/, execution/, getting-started/,
human-tools/, integrations/, languages/, reference/, tutorials/,
workflows/, images/, logo/, docs.json, favicon.svg, dot-highlight.js)
into docs/public/.
- Collapse docs-internal/ into docs/internal/.
- Update Rust path references (fabro-api/build.rs, fabro-server,
fabro-dev), TypeScript generator arg, CI path filters, clippy.toml
reasons, AGENTS.md/CLAUDE.md, and README.md image refs.
Mintlify dashboard project root must be updated to docs/public/ in a
follow-up. .mintignore move/trim and .claude/skills/ updates land in a
separate commit.
