Each major feature gets its own H2 heading with narrative depth
and code examples instead of dense bullet lists under category
headers. Minor improvements and fixes go at the bottom as a flat
list. Style inspired by Qlty, Linear, Vercel, and Resend changelogs.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Rename the endpoint, schema (RunFiles -> RunCompare), operation ID,
handlers, and frontend route across the full stack.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The question_type field on ApiQuestion was a bare string serialized via
Debug formatting. Define a proper enum in the spec so typify generates a
typed QuestionType, then map from the workflow enum in the handler.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Wrap 4 list endpoints that returned bare arrays in the standard
paginated `{ data, meta: { has_more } }` shape so adding real
pagination later is additive rather than a breaking change.
Endpoints: GET /runs/{id}/questions, /runs/{id}/stages,
/runs/{id}/verifications, and /verifications.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Apply the same page[limit]/page[offset] pagination pattern from
GET /runs to: workflows, workflow runs, retros, sessions, projects,
branches, saved queries, query history, and stage turns.
Each endpoint now returns { data, meta: { has_more } } instead of
a bare array. Includes OpenAPI spec updates, demo handler changes,
regenerated TS client, updated frontend consumers, and a new
pagination conformance test.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Runs now go through a state machine (queued → starting → running →
completed/failed/cancelled) instead of spawning immediately. A background
scheduler promotes queued runs when capacity is available, defaulting to
4 concurrent runs. Configurable via --max-concurrent-runs CLI flag or
max_concurrent_runs in server.toml.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Introduce page[limit]/page[offset] query params and { data, meta: { hasMore } }
response wrapper for the /runs endpoint, establishing the pagination pattern
for all future list endpoints.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Tracks total runs, input/output tokens, cost, and runtime in-memory
(resets on server restart). Accumulates from checkpoint node_outcomes
when runs complete. Includes per-model breakdown.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
All API errors now return a consistent JSON shape:
{"errors": [{"status": "4xx", "title": "...", "detail": "..."}]}
Introduces ApiError type with IntoResponse impl, replaces bare
StatusCode returns and ad-hoc {"error": "..."} responses in all
handlers and auth extractors. Updates OpenAPI spec and regenerates
TypeScript client.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add discovery, health check, OpenAPI spec, and current user endpoints.
The first three are public; /user requires authentication and returns
the login extracted from JWT sub claim, mTLS CN, or "demo" in demo mode.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Use List/Retrieve/Start/Stream/Cancel naming. Add new tags: Run Internals,
Human-in-the-Loop, Usage. Regenerate TypeScript client.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Update logging strategy to explain that event enums have trace()
methods called automatically at emit sites, and that wrapper
variants are no-ops to prevent double-logging.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Defines structured logging conventions for the team: level guidelines
(INFO for production, DEBUG for on-demand investigation), structured
field patterns, and per-crate examples.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- AttractorError → ArcError across 30 source files
- .attractor/ → .arc/ for artifacts and skills paths
- ATTRACTOR_NODE_ID → ARC_NODE_ID env var
- attractor-rust → arc in Cargo.toml repository URLs
- attractor-spec.md → arc-spec.md with content updates
- Update server banner, test comments, README examples, and docs
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Aligns with the kilroy implementation of the Attractor spec. A default
of 50 retries is far too aggressive for most workflows.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Rename the entire "tool" concept to "script": ToolHandler → ScriptHandler,
tool_command attribute → script, tool.output → script.output, and all
related artifact filenames. Add a language attribute (shell | python,
default shell) so script nodes can run Python via python3 -c natively.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Enrich three AgentEvent variants with payload data (UserInput.text,
TurnLimitReached.max_turns, SteeringInjected.text) and forward
UserInput/SteeringInjected to the pipeline event stream. Add cost
field to StageUsage (computed from model pricing catalog) and
total_cost to PipelineCompleted (summed from stage outcomes).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Entire-Checkpoint: adb2363c9ec4
The test criteria incorrectly said FAIL outcomes should be retried.
The pseudocode (Section 3.5) and the C reference implementation both
return immediately on FAIL. Only RETRY status triggers the retry loop.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Stores DOT source in ManagedPipeline and pipes it through `dot -Tsvg`
on request. Returns image/svg+xml on success, 502 if graphviz is
unavailable, 404 if pipeline not found. Resolves spec gap #1.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Closes the subgraph class derivation test gap by adding a parse() pipeline
test that verifies DOT subgraph labels produce correct CSS-like classes on
contained nodes. Updates gap analysis to remove resolved items, add spec
contradictions section, and narrow remaining gaps to SVG rendering and
retry predicate customization.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Gap 1: Real preamble synthesis per fidelity mode (truncate, compact,
summary:low/medium/high) in new preamble.rs module, replacing placeholder
- Gap 2: Pass thread_id to CodergenBackend.run() so backends can reuse
LLM sessions across nodes sharing the same thread
- Gap 7: Engine cancellation via AtomicBool token checked between nodes,
wired to server cancel endpoint, new Cancelled error variant
- Gap 8: RecordingInterviewer serialization (to_json/from_json, file I/O)
and new ReplayInterviewer for replaying recorded Q&A sessions
- Gap 12: Preset retry policies selectable from DOT via retry_policy attr
(none, standard, aggressive, linear, patient)
- Gap 15: Engine calls Interviewer.inform() at pipeline start, stage
start, and stage complete lifecycle points
37 new tests (450 unit + 49 integration, all passing).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Adds the attractor crate implementing all 11 sections of the attractor spec:
- DOT parser (lexer, grammar, semantic analysis) for strict DOT subset
- Pipeline execution engine with edge selection, goal gates, retry logic,
failure routing, checkpoint save/resume, and loop_restart
- 9 node handlers: start, exit, codergen, wait_human, conditional, parallel
(concurrent with join/error policies), fan_in (with LLM eval), tool, manager_loop
- State management: PipelineContext, Outcome, Artifact store, fidelity resolution
- Human-in-the-loop: Interviewer trait with auto_approve, callback, queue,
recording, and console implementations, plus timeout enforcement
- Validation: 14 built-in lint rules with custom rule registration API
- Model stylesheet with universal/shape/class/ID selectors and specificity
- Transforms: variable expansion, stylesheet application, preamble; plus
PipelineBuilder with register_transform and prepare_pipeline
- Condition expression language with =, !=, bare-key truthiness, && combinator
- Event system with all 16 event types emitted by engine and handlers
- Tool call hooks (pre/post) for CodergenHandler
- Run directory with manifest.json and per-node status.json
370 tests (354 unit + 16 integration) covering all spec sections.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Extract shared test infrastructure (MockExecutionEnvironment, TestProfile,
MockLlmProvider) replacing 11 duplicate mock implementations across tests
- Deduplicate tool execution logic between sequential and parallel paths
- Narrow ProviderProfile trait from 14 to 7 required methods via
ProfileCapabilities struct and default implementations
- Replace stringly-typed HashMap event data with typed EventData enum
- Extract shared assemble_system_prompt helper and register_subagent_tools
default method, eliminating copy-paste across all 3 profiles
- Replace fragile shell-based glob with glob crate, fix rg detection
- Add delete_file to ExecutionEnvironment, wire git context into env block
- Remove dead code (AgentError::Io, count_turns, trivial derived-trait tests)
- Use match-based lookups in truncation instead of per-call HashMap allocation
Net reduction: -1,401 lines across 20 files. All 180 tests pass.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Add knowledge_cutoff() method to ProviderProfile trait so session can
populate EnvContext from the profile instead of leaving it empty
- Set subagent default max_turns to 50 per spec (was using session
factory default which could be 0/unlimited)
- Add corrected spec compliance review after manual verification found
the initial 5-agent review was largely false positives
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
resolve_model() was passing raw alias strings (e.g. "gpt5") directly to
APIs instead of resolving them to actual model IDs (e.g. "gpt-5.2").
Also rename gpt-5.2-mini to gpt-5-mini, which is the correct OpenAI
model ID.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Enforce stream_read timeout (30s default) in all 4 providers' streaming code
- Add with_timeout() builder method to all adapter constructors
- Fix ResponseFormatType::JsonObject to serialize as "json" per spec
- Add STEP_FINISH to StreamEventType enum in spec doc
- Add UnsupportedToolChoice error and enforce in all adapters via validate_tool_choice()
- Fix error classification to check status code before message content
- Add stop_sequences support to OpenAI Responses API adapter
- Handle Gemini thought parts (thought: true) in both complete and streaming paths
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
