Commit graph

32 commits

Author SHA1 Message Date
Bryan Helmkamp
dc93404e38 refactor(config): move project state under .fabro
Keep project config and checked-in workflows under .fabro so they stay out of
normal repo listings. Update config discovery, CLI project commands, fixtures,
docs, and checked-in workflow paths to use .fabro/project.toml and
.fabro/workflows/*.
2026-04-11 12:55:46 -04:00
Bryan Helmkamp
5ed04c3c57 feat(template): unify workflow and config template syntax
Add a shared MiniJinja-based template crate and migrate workflow prompts,
imports, hooks, and InterpString env references to the new {{ ... }}
syntax. This also threads typed run inputs through workflow rendering and
updates docs and tests to match the new templating model.
2026-04-11 10:58:50 -04:00
Bryan Helmkamp
ed68c8b1d4 docs: migrate reference and guide examples to v2 config shape
Rewrite every docs/ reference and integration guide example that
previously showed legacy flat TOML (`[llm]`, `[vars]`, `[sandbox]`,
`[setup]`, `[exec]`, `[fabro]`, `[pull_request]`, `[mcp_servers]`,
`[git]`, `[web]`, `[api]`, `[features] retros`, `version = 1`,
top-level `storage_dir`) to use the v2 namespaced schema. Also update
the surrounding prose to describe v2 merge semantics (R22 run.inputs
wholesale replacement, R71 sticky sandbox.env/labels, R30 whole-list
prepare.steps replacement, hook id-based replacement).

Files touched:
- docs/reference/user-configuration.mdx (complete rewrite around
  [cli.*] ownership, [run.*] run-scoped defaults, [cli.target] /
  [cli.exec] / [cli.output] / [cli.updates] / [cli.logging], and
  [run.agent.mcps.<name>] with durations like "10s")
- docs/reference/cli.mdx (settings.toml example uses [cli.exec.*],
  [run.model], [cli.target])
- docs/execution/run-configuration.mdx (full run-config example
  rewritten to use [workflow].graph, [run].goal/working_dir,
  [run.model], [run.prepare.steps], [run.sandbox.daytona.snapshot]
  with Size values, [run.inputs], [run.artifacts], [run.agent.mcps],
  [run.pull_request], [[run.hooks]] with optional id and duration
  timeout; section docs explain the new merge semantics)
- docs/execution/environments.mdx and devcontainers.mdx (sandbox
  examples now use [run.sandbox.*])
- docs/execution/retros.mdx (retros moved to [run.execution] retros
  = true per R31)
- docs/execution/failures.mdx (fallbacks now a single ordered array
  under [run.model].fallbacks)
- docs/workflows/variables.mdx ([vars] → [run.inputs], wholesale
  replacement semantics explained)
- docs/administration/server-configuration.mdx (full reference
  rewritten around [server.listen]/[server.api]/[server.web]/
  [server.auth]/[server.storage]/[server.scheduler]/[server.logging]/
  [server.integrations])
- docs/api-reference/overview.mdx (auth strategies now enabled via
  [server.auth.api.jwt].enabled and [server.auth.api.mtls].enabled;
  listener TLS moved to [server.listen.tls])
- docs/integrations/daytona.mdx, github.mdx (provider config now
  nested under [run.sandbox.daytona] / [server.integrations.github])
- docs/human-tools/ssh-access.mdx (sandbox examples to v2)
- docs/agents/mcp.mdx (Playwright sandbox example to [run.agent.mcps])
- docs/core-concepts/models.mdx (model config and fallbacks array to
  [run.model])

Canonical fabro-cli overrides and server run_manifest now emit
verbose via [cli.output].verbosity = verbose rather than the prior
run.metadata staging. No code changes beyond those Stage 4 fixes that
were already in flight.
2026-04-09 11:30:52 -04:00
Bryan Helmkamp
4d62c784ee Update docs for new CLI commands, fast mode, and subagent defaults
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 15:02:48 -04:00
Bryan Helmkamp
588515dbf6 Attractor spec hunks 14 & 16: remove error_policy and k_of_n/quorum from parallel handler
Remove ErrorPolicy enum (continue/fail_fast/ignore) and the k_of_n/quorum
join policies from the parallel handler, leaving only wait_all and
first_success. This deletes ~180 lines of conditional logic including
FailFast early termination, the ParallelEarlyTermination event, and all
related tests and documentation.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-23 14:59:35 -04:00
Bryan Helmkamp
b9fe1282d3 Attractor spec hunks 9-11: edge selection fallback and default_max_retries rename
- Remove any-edge fallback from select_edge() in deterministic mode; random
  mode retains it as an enhancement over the base spec
- Restrict preferred_label and suggested_next_ids matching to unconditional
  edges only (already applied in prior work, tests added here)
- Rename default_max_retry → default_max_retries across codebase (code, docs,
  fixtures, skills) and change default from 3 to 0
- Update transitions.mdx to document edge selection cascade accurately

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-23 14:20:24 -04:00
Bryan Helmkamp
b59c62b33e Unify fabro run foreground to use create + start + attach (#141)
## Summary

- **Unify foreground and detach code paths**: Both `fabro run` modes now
go through the same `create_run() + start_run()` pipeline, with
foreground adding `attach_run()`. Only `--preflight` remains as a
special case.
- **Fix three bugs in create→start→attach path**: (1) `_run_engine`
crashed for `.fabro` workflows by hardcoding `run.toml` — now falls back
to `graph.fabro`; (2) `attach_run` couldn't detect crashed engines due
to zombie processes — `start_run` now returns the `Child` handle; (3)
`create_run` ignored `--run-id`.
- **Configure nextest slow-timeout profiles**: Tighten unit test timeout
to 2s slow / 4s kill, add `e2e` profile with 10s/30s. Switch CI and docs
to `cargo nextest run`.

## Test plan

- [ ] `cargo nextest run --workspace` passes with new timeout profiles
- [ ] `fabro run <workflow>` works in foreground mode (create + start +
attach)
- [ ] `fabro run --detach <workflow>` prints run ID and exits
- [ ] `fabro attach <run>` works standalone (without child handle)
- [ ] `fabro resume <run>` works for both `.toml` and `.fabro` workflows

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Fabro <noreply@fabro.sh>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-22 22:48:09 -04:00
Bryan Helmkamp
2172f5987e Add Node Outcomes docs page and fix status gaps across docs
New page (execution/outcomes.mdx) defines the 5 stage statuses, documents
how each handler produces them, and explains allow_partial, auto_status,
the retry loop, goal gate interaction, and outcome in edge conditions.

Existing pages updated: added missing `skipped` status to outcome key
descriptions, improved `goal_gate`/`auto_status` descriptions in the
dot-language reference, added `allow_partial` to the attributes table,
and added cross-links from failures.mdx and transitions.mdx.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-21 10:05:36 -04:00
Bryan Helmkamp
9b6650ee48 Remove empty stub doc pages and fix broken links
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-17 08:25:05 -04:00
Bryan Helmkamp
359306569a Update roadmap and standardize on Graphviz terminology
Roadmap: replace placeholder items with current shipped/building/planned
features. Use real dates for sorting instead of manual sortOrder. Fix
UTC timezone rendering for date display.

Terminology: replace all standalone "DOT" references with "Graphviz" or
"Graphviz DOT" across docs, marketing, README, AGENTS.md, and OpenAPI
spec. Changelogs left unchanged as historical records.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-16 20:01:33 -04:00
brynary-fabro[bot]
f9d0ebaf33 Random Edge Selection (#12)
This PR introduces a `selection="random"` node attribute that enables
weighted-random tiebreaking when choosing among candidate outgoing
edges. The existing deterministic behavior (highest weight, then lexical
node ID) remains the default. The cascade priority—conditions →
preferred label → suggested next → unconditional → fallback—is
unchanged; randomness only replaces the final pick-one-from-candidates
step within each tier. A new `weighted_random` function handles the
sampling, treating edges with weight ≤ 0 as weight 1, while a
`pick_edge` dispatcher routes to either the random or deterministic
strategy based on the node's `selection()` accessor.

A validation rule (`RandomSelectionNoConditionsRule`) rejects nodes that
combine `selection="random"` with conditional edges, since condition
evaluation order would conflict with random selection. A companion rule
(`SelectionValidRule`) warns on unrecognized selection values. Both are
registered as built-in lint rules with appropriate error/warning
severities and actionable fix suggestions.

Documentation is updated in the transitions guide with a new "Random
selection" section explaining the behavior and constraints, and the DOT
language reference gains a `selection` row in the node attributes table.
All changes were developed following red/green TDD cycles with
comprehensive test coverage for the accessor, weighted random sampling,
edge selection integration, and both validation rules.

### Fabro Details

<details>
<summary>Ran 7 stages in 17m 1s for $4.07</summary>

| Stage | Duration | Cost | Retries |
|---|---|---|---|
| start | 0s | – | 0 |
| toolchain | 0s | – | 0 |
| preflight_compile | 0s | – | 0 |
| preflight_lint | 0s | – | 0 |
| implement | 0s | $2.43 | 0 |
| simplify | 0s | $1.63 | 0 |
| verify | 0s | – | 0 |
| **Total** | **17m 1s** | **$4.07** | **0** |

</details>

<details>
<summary>Ran <code>ImplementAndSimplify.fabro</code> (10 nodes and 13
edges)</summary>

```dot
digraph ImplementAndSimplify {
    graph [
        goal="Implement and simplify",
        model_stylesheet="
            * { backend: api; model: claude-opus-4-6;}
        "
    ]
    rankdir=LR

    start [shape=Mdiamond, label="Start"]
    exit  [shape=Msquare, label="Exit"]

    toolchain         [label="Toolchain", shape=parallelogram, script="command -v cargo >/dev/null || { curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y && sudo ln -sf $HOME/.cargo/bin/* /usr/local/bin/; }; cargo --version 2>&1", max_retries=0]
    preflight_compile [label="Preflight Compile", shape=parallelogram, script="cargo check 2>&1", max_retries=0]
    preflight_lint    [label="Preflight Lint", shape=parallelogram, script="cargo clippy -- -D warnings 2>&1", max_retries=0]
    fix_lints         [label="Fix Lints", prompt="The preflight lint step failed. Read the build output from context and fix all clippy lint warnings.", max_visits=3]
    implement         [label="Implement", prompt="Read the plan file referenced in the goal and implement every step. Make all the code changes described in the plan."]
    simplify          [label="Simplify", prompt="@prompts/simplify.md"]
    verify            [label="Verify", shape=parallelogram, script="cargo clippy -- -D warnings 2>&1 && cargo test 2>&1", goal_gate=true, retry_target="fixup"]
    fixup             [label="Fixup", prompt="The verify step failed. Read the build output from context and fix all clippy lint warnings and test failures.", max_visits=3]

    start -> toolchain
    toolchain -> preflight_compile [condition="outcome=success"]
    toolchain -> exit
    preflight_compile -> preflight_lint [condition="outcome=success"]
    preflight_compile -> exit
    preflight_lint -> implement [condition="outcome=success"]
    preflight_lint -> fix_lints
    fix_lints -> preflight_lint
    implement -> simplify -> verify
    verify -> exit  [condition="outcome=success"]
    verify -> fixup
    fixup -> verify
}

```

</details>

⚒️ Generated with [Fabro](https://fabro.sh)

---------

Co-authored-by: Fabro <noreply@fabro.sh>
2026-03-15 19:54:48 -04:00
Bryan Helmkamp
682971e86b Update docs for rewind, workflow list, daytona, and validation
Fix changelog rewind syntax to use positional args instead of flags.
Clarify Daytona snapshot note to distinguish configured-but-missing vs
unconfigured cases. Add rewind/workflow-list CLI reference sections,
checkpoints rewind guide, thread_id validation rule, and human gate
behavior details.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-14 13:51:57 -04:00
Bryan Helmkamp
21aff5431c Update docs, frontend, marketing, and skills for .fabro extension
Update 47 MDX doc pages, OpenAPI spec, SVG diagram, language
grammar, frontend demo data, marketing page, skills, and README
to use .fabro extension. Add "fabro" to fileTypes in language
grammars. Document stack.child_workflow alongside stack.child_dotfile.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-13 22:38:25 -04:00
Bryan Helmkamp
edf8382e40 update docs: document provider auto-inference from model catalog
Note in stylesheets, DOT reference, multi-model tutorial, run config,
and skill references that provider is now optional and auto-inferred.
Remove redundant provider from TOML examples.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-12 22:34:17 -04:00
Bryan Helmkamp
d37fb9a9b4 simplify model stylesheet: rename llm_model/llm_provider, add provider inference
Rename `llm_model` → `model` and `llm_provider` → `provider` in stylesheet
properties, accessor methods, and all DOT/doc references. Add
ProviderInferenceTransform that automatically infers provider from the model
catalog, eliminating redundant provider declarations in stylesheets.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-12 22:27:18 -04:00
Bryan Helmkamp
28884ae093 rename Arc to Fabro in all Rust crates, symbols, env vars, and supporting files
- Rename 20 crate directories lib/crates/arc-* → fabro-*
- Update all Cargo.toml: crate names, dep paths, feature flags, bin name
- Rename arc_server module → fabro_server in fabro-llm
- ArcError → FabroError across 30+ files
- ARC_VERSION/ARC_GIT_SHA/ARC_BUILD_DATE → FABRO_* constants
- All use/qualified paths: arc_agent:: → fabro_agent::, etc. (~1500 occurrences)
- Env vars ARC_* → FABRO_* in string literals and shell scripts
- String literals: X-Arc-Demo, arc-bot, arc@local, arc-web, arc-mcp, etc.
- Path strings: .arc/ → .fabro/, arc.toml → fabro.toml, refs/arc/ → refs/fabro/
- arc-api.yaml → fabro-api.yaml (OpenAPI spec)
- skills/arc-create-workflow → fabro-create-workflow
- trycmd fixtures: $ arc → $ fabro
- Inline snapshots (insta) updated
- CI, Docker, install.sh, scripts, CLAUDE.md, AGENTS.md
- TypeScript app: env vars, headers, JWT issuer
- Docs: page slugs, git refs, config paths, sandbox names, repo URLs
- Repo references: brynary/arc → fabro-sh/fabro

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-12 12:25:58 -04:00
Bryan Helmkamp
d4fe6b72e0 docs: rename Arc to Fabro throughout docs
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-12 10:53:44 -04:00
Bryan Helmkamp
14a38a0145 Update docs for exe.dev maturation, assets config, pull_request CLI config, and --goal-file
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-09 10:06:23 -04:00
Bryan Helmkamp
d002aa0b51 Rename arc run startarc run (#5)
* arc(01KK7524KNGTPS4090QMF87FJN): implement (success)

Arc-Run: 01KK7524KNGTPS4090QMF87FJN
Arc-Completed: 2
Arc-Checkpoint: 1ff03c704805dfe8e7c37b37f97bd06dfa0e5dc5

* Fix: restore trailing newlines stripped by previous commit

* arc(01KK7524KNGTPS4090QMF87FJN): simplify (success)

Arc-Run: 01KK7524KNGTPS4090QMF87FJN
Arc-Completed: 3
Arc-Checkpoint: 21771adfd26283a1d1e6b8a123a83a0c4277db48

---------

Co-authored-by: arc <arc@local>
Co-authored-by: Arc Assistant <assistant@arc.dev>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-08 16:14:50 -04:00
Bryan Helmkamp
7af7fb30d6 Update docs to reflect new stream read timeout and backoff defaults
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-08 10:05:48 -04:00
Bryan Helmkamp
130339ee87 Add filename titles to TOML code blocks in docs
Every TOML example now shows which config file it belongs to
(server.toml, cli.toml, or run.toml) via Mintlify's title annotation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 18:06:57 -05:00
Bryan Helmkamp
ea10b8148e Document Brave Search integration, update nav, rename Decisions page
- Replace Brave Search stub with full docs: setup, usage, example workflow
- Add Human Tools group to docs.json navigation
- Move VS Code from integrations (deleted) to human-tools nav
- Rename human-in-the-loop page title to "Decisions"

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 14:04:07 -05:00
Bryan Helmkamp
1b2a63f6af Implement per-node max_visits override for loop detection
Per-node `max_visits` now overrides the graph-level `max_node_visits`
(and the dry-run default of 10) for individual nodes, giving tighter
control over specific loops like fix-and-verify cycles.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-05 22:05:11 -05:00
Bryan Helmkamp
69a203c2a8 Add $$ escape mechanism for variable expansion
Allows literal $ signs in prompts and DOT files by writing $$. Also
refactors VariableExpansionTransform to use expand_vars instead of
string replace, fixing a substring-matching bug with $goal.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 21:44:50 -05:00
Bryan Helmkamp
4605f821e8 Add custom TextMate grammar for DOT syntax highlighting in docs
Revert the graphviz language identifier back to dot (Shiki doesn't
bundle either) and register a custom TextMate grammar via Mintlify's
styling.codeblocks.languages.custom config. The grammar (extracted from
apps/arc-web/app/data/dot-grammar.ts) highlights keywords, shape names,
attributes, strings, comments, and operators.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 21:41:54 -05:00
Bryan Helmkamp
6a98dcc246 Use graphviz language identifier for DOT code blocks, add titles to workflow examples
Changes ```dot to ```graphviz across all docs for better syntax highlighting
in Mintlify (Shiki). Full digraph blocks get a title derived from the workflow
name (e.g. title="hello.dot").

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 21:26:45 -05:00
Bryan Helmkamp
598b5b7d19 Update docs: fill in administration, agents, execution, and reference pages; remove placeholder pages
Remove stub pages (bring-your-own-key, costs, monitoring, usage, artifacts,
ai-tools, extensions, hooks, llms) and flesh out remaining pages with real
content covering advanced setup, security, permissions, MCP, observability,
interviews, environments, CLI reference, architecture, and workflow stages.
Add permission-flow diagram and tutorials section.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 20:25:23 -05:00
Bryan Helmkamp
5bdb67c51e Document agent backends (API vs CLI)
Add Backends section to agents page explaining the two execution
strategies, expand backend attribute descriptions in dot-language
and stylesheet references, and add API-only notes to tools and
sub-agents pages.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 20:00:21 -05:00
Bryan Helmkamp
24f0fa7ca0 Add Daytona network access control and fill in execution docs
- Add DaytonaNetwork enum (block/allow_all/allow_list) with custom serde
  Deserialize for TOML string-or-table syntax
- Wire network config through run_config defaults merging and base_params
- Document network access in sandboxing, environments, and run-configuration
- Fill in execution docs: checkpoints, environments, failures, interviews,
  run configuration, observability, retros
- Rename compounding.mdx → retros.mdx, insights.mdx → observability.mdx
- Use DaytonaConfig::default() in tests to reduce boilerplate

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 18:31:19 -05:00
Bryan Helmkamp
7505cb4ce1 Fill in Agents, Human-in-the-Loop, Stylesheets, Variables pages
- Agents: agent loop, built-in tools, prompts, sub-agents, skills, hooks
- Human-in-the-Loop: gates, accelerators, freeform input, auto-approve
- Stylesheets: selectors, specificity, properties, cascading, full examples
- Variables: run config vars, $goal expansion, variable merging
- Remove model stylesheets section from core workflows page (now dedicated page)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 17:42:19 -05:00
Bryan Helmkamp
dd797cca1a Fill in core docs: How Arc Works, Models, Workflows, Nodes & Stages, Transitions
- How Arc Works: end-to-end architecture with diagram, execution loop, retries,
  sandboxes, observability, and resume
- Models: multi-provider rationale, full catalog table, stylesheets, overrides
  via CLI and TOML, ensemble SVG
- Workflows: anatomy SVG, key node types, branching/loops SVG, parallel SVG,
  model stylesheets, goal gates
- Nodes & Stages: all node types with attributes, fidelity/thread_id tables,
  join/error/retry policy tables
- Transitions: edge selection priority, condition expression language, agent
  transitions, human gates, weight tiebreaking
- Remove workflows/ingestion page

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 17:29:57 -05:00
Bryan Helmkamp
d450695a20 Scaffold Mintlify docs site with full navigation structure
Replace boilerplate Mintlify starter with Arc docs outline:
- Switch to almond theme (sidebar search, card-based layout)
- Top nav: Documentation, Guides, API Reference, Changelog
- Documentation sidebar: Getting Started, Core Concepts, Defining
  Workflows, Executing Workflows, Agents, Administration, Deployment,
  Reference
- Guides tab with example workflows
- Get Started button in navbar
- 48 MDX stub pages across 9 directories

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-03 10:33:09 -05:00