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>
- 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>
Introduce a reusable Warning { kind, message, details } variant in
AgentEvent so non-fatal warnings (context window usage, deprecation,
etc.) share a single event shape. The context_window warning preserves
all original fields inside the JSON details object.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
## 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>
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>
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>
Move retro control from [fabro] retro to [features] retros in project
config. Default changes from true to false — retros are now opt-in.
Add retros field to server config Features struct, OpenAPI spec,
TypeScript client, and web app config. Update docs with experimental
warning and new enablement instructions.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Move Comparison link below Troubleshooting in nav
- Rename "DOT Language" page to "Fabro Language"
- Remove five-tier table from dark factory page, keep link to Dan Shapiro's post
- Add fork command docs and checkpoints section
- Add upgrade, asset list, asset cp command docs
- Add upgrade_check config reference
- Add retros feature flag to server config
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Remove the separate CheckpointSaved event — CheckpointCompleted now fires in
both git and non-git paths. git_commit_sha is Optional (None when git is
disabled or for start nodes). The CheckpointSaved hook event is preserved
unchanged for backward compat with user hook configs.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Rename GitCheckpoint/GitCheckpointFailed to CheckpointCompleted/CheckpointFailed
to separate checkpoint lifecycle from git operations. Add 7 new granular git
events: GitCommit, GitPush, GitBranch, GitWorktreeAdd, GitWorktreeRemove,
GitFetch, GitReset. Emit at all relevant call sites in engine.rs and parallel.rs.
Update push helpers to return bool for GitPush success tracking.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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>
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>
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>
- Add 10 screenshots of the Fabro web UI to docs pages (workflows, runs,
retros, observability, steering)
- Update arc-web logos from Arc to Fabro (logotype.svg, logotype-light.svg)
- Hide Start and Settings nav items in arc-web for cleaner screenshots
- Mount arc-web public/ as Docker volume for logo hot-swapping
- Combine "Run agents 24/7" and "Scale infinitely" use cases
- Replace clone-and-build Quick Start with curl installer from README
- Add internal docs for updating web screenshots
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add a new section to the branch-loop tutorial showing how to loop a node
exactly N times using a diamond gate with a visit count condition, and
cross-reference it from the context docs.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Regenerate 2026-03-10 changelog with full commit set (installer, devcontainer
support, arc pr subcommands, --no-dotenv removal). Add 2026-03-11 changelog
for shadow branch run records and arc diff improvements. Update docs: CLI
reference (arc pr list/view/merge/close, --shortstat), devcontainers page
(replace placeholder with full content), run-configuration (devcontainer
field), checkpoints (per-node files on metadata branch), models catalog
(gemini-3.1-pro-preview-customtools). Improve preflight to show per-model
LLM checks instead of a single merged provider line.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The one-time environment setup command (LLMs, certs, GitHub) is now
`arc install`, freeing up naming space for a future `arc init` command
for per-project initialization.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Per-run data now lives in ~/.arc/runs/ while daily CLI log files
stay in ~/.arc/logs/. Renames: logs_root → run_dir (RunConfig field,
Handler trait param, all handlers), logs_dir → run_dir (CLI arg,
local variables), default_logs_base → default_runs_base (path fn).
Adds DB migration 002 to rename workflow_runs.logs_dir → run_dir.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- docs/agents/mcp.mdx: Remove pre-release warning. Add sandbox transport
docs alongside stdio and HTTP. Restructure configuration section to
cover both cli.toml and run config TOML. Replace filesystem example
with Playwright browser automation example.
- docs/execution/run-configuration.mdx: Add [mcp_servers] section with
field reference for all three transport types. Add to full example.
- docs/reference/cli-configuration.mdx: Add sandbox transport subsection.
Cross-reference workflow-level MCP config.
- docs/integrations/daytona.mdx: Add MCP sandbox transport to feature table.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Warn users that exe.dev and devcontainer features are under active
development and may require special build flags.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- hooks.mdx: add pre_tool_use/post_tool_use/post_tool_use_failure events,
tool-specific context fields, matcher support for tool names
- cli.mdx: add --mode and --server-url flags to arc exec
- run-configuration.mdx: add [pull_request] section
- github.mdx: add auto-PR to features table
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Regenerate March 7 changelog with sandbox.env, CLI renames, and missing
accordion items. Add March 8 changelog for sandbox reliability and @file
validation. Update reference docs for --goal, --mode flags, sandbox.env,
checkpoint exclude globs, [log] config, [git.author], and project_memory.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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>
Fill in the SSH Access human-tools page with how to enable SSH into
Daytona sandboxes, credential lifetime, and limitations. Fill in the
VS Code page explaining how to connect VS Code Remote-SSH to a
sandbox. Add the SshAccessReady event to the observability event
catalog.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Document the new exe.dev cloud VM sandbox provider across
environments, sandboxing, and advanced-setup pages. Includes
beta warning callout, provider tables, and troubleshooting.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Enrich the entire OpenAPI spec with descriptions, examples, format
annotations, extracted parameters, discriminated unions, and richer
response schemas — matching the patterns already established for
Sessions.
Structural changes:
- Extract CancelRunResponse and SteerRunResponse from inline schemas
- Change POST /runs/{id}/steer from 200 to 202 (async fire-and-forget)
- Split StageTurn into discriminated union (SystemStageTurn,
AssistantStageTurn, ToolStageTurn) with oneOf + discriminator
- Add status + created_at to StartRunResponse
- Add created_at to RunListItem and RunStatusResponse
- Add created_at + updated_at to SavedQuery
- Add format: date-time on RetroListItem.timestamp
- Extract 7 new reusable parameters (StageId, QuestionId, WorkflowName,
VerificationSlug, InsightQueryId, ProjectId, CheckpointFilter)
- Enrich existing RunId, PageLimit, PageOffset parameters
- Add descriptions + examples to all ~66 schemas and ~200+ properties
- Add operation descriptions to all ~35 endpoints
Rust handler updates:
- Change ManagedRun.created_at from Instant to chrono::DateTime<Utc>
- Populate new fields in StartRunResponse, RunStatusResponse
- Use new StageTurn discriminated union variants in demo data
- Update demo data timestamps to use DateTime<Utc>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace `gh auth token` with GitHub App IATs scoped to `contents: read` for
Daytona sandbox git cloning. Public repos are auto-detected and cloned without
credentials. Private repos get short-lived, repo-scoped tokens. Clear error
messages for each failure mode (app not installed, suspended, no repo access,
auth failure). Falls back gracefully when no GitHub App is configured.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Add SVG workflow diagrams for all tutorials and examples
- Fill in NLSpec Convergence and Semantic Port example content
- Add Solitaire example workflow
- Add error handling sections to tools and subagents docs
- Add context compaction and artifact offloading to context docs
- Add credential redaction note to observability docs
- Add workflow diagram Frame references to tutorials
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
