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1dbaccbde3
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specify failure propagation semantics (C-04)
Key design decisions:
- Failure follows dependency edges, not structural scope
- Parallel branches are independent: failure in one branch
doesn't cancel sibling branches
- blockedByFailure computed signal detects failed/aborted predecessors
- Conditionals serve as error boundaries (caught failures redirect
to else branch, uncaught failures cascade)
- aborted nodes don't satisfy preconditions; skipped nodes do
- abortAll() for systemic failures (provider outage, auth failure)
Changes:
- reactive-execution.md: new Failure Propagation section with
sequential/parallel/join/conditional examples, blockedByFailure
effect, partial success model
- host-configs.md: add blockedByFailure to WorkflowNode, update
status propagation effects, replace cascadeAbort with abortAll
- schema.md: document precondition semantics for NodeStatus
- build-distribution.md + README.md: add blockedByFailure to
node-status.ts comments
- review checklist: mark C-04 resolved
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2026-05-19 11:36:55 +00:00 |
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d2253099ee
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add flowgraph architecture docs (Phase 1 SDD)
Draft architecture specification for @alkdev/flowgraph — a workflow graph library providing DAG-based orchestration over operations. Covers two graph types (operation graph, call graph), ujsx workflow templates, GraphologyHost and ReactiveHost configs, signal-driven execution, type-compatibility analysis, error hierarchy, and build/distribution. Includes 3 ADRs: ujsx as template IR, DAG-only enforcement, decoupled storage.
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2026-05-19 09:36:22 +00:00 |
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