FE-815: Orchestrator demo fixtures: parallel, diamond, halt#174
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…, halt) Three greenfield brunch cook fixtures + design doc, each isolating one Petri-only behaviour vs a linear agent loop (docs/design/orchestrator-demo-fixtures.md): parallel-utils (pool-capped fan-out; FE-743), layered-todo (diamond join + cross-epic gate; previews Phase 3), resilient-pipeline (seeded halt → unreachable join; previews Phase 4). Builds on FE-813. Data-only; loadPlan + reference-resolution validated; npm run check clean. Co-authored-by: Claude <noreply@anthropic.com>
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What
Three greenfield
brunch cookstress-test fixtures + their design doc, each isolating one behaviour a Petri net does that a linear agent loop cannot — and each previewing a horizon item.fixtures/parallel-utils— 8 independent leaves, pool-capped fan-out. The serial-vs---policy=parallel --agentPoolSize=3wall-clock delta is the demo. Maps topetri-parallel-execution(FE-743).fixtures/layered-todo— diamond join (types → {store, validation} → service) + cross-epic gate (cli depends_on core). The dependency shape a flat plan can't represent. Previewspetri-graph-compilation(Phase 3).fixtures/resilient-pipeline—transform-bseeded with a contradictory spec → halts;parse+transform-acomplete, theserializejoin is provably unreachable. Previewspetri-simulation-oracle(Phase 4).Spec:
docs/design/orchestrator-demo-fixtures.md(split strategy, demo knobs, fixture→landed→horizon map).Why now
Builds on FE-813 — the evaluator now gates
doneon real test execution, so greenfield fixtures route honestly through the TDD lanes. The existingfixtures/txt/is too flat (one dependency edge) to show parallelism, joins, or halts.Verification
Data-only (3
plan.yaml+ 1 doc). Validated vialoadPlan+ epic/slice reference-resolution;npm run checkclean. Running them with realpiis a separate verify pass (out of scope).🧙 Built with WOZCODE