Files
flowgraph/tasks/graph-queries.md
glm-5.1 466b121f77 decompose architecture into 38 atomic tasks across 12 parallel generations
Decompose the reviewed architecture specs into taskgraph-managed tasks:
- 2 setup tasks (project init, test infrastructure)
- 4 schema tasks (enums, node attrs, edge attrs, graph schemas)
- 1 error hierarchy task
- 6 graph tasks (FlowGraph class, 3 construction paths, queries, validation)
- 5 analysis tasks (type-compat, build-type-edges, ordering, template-validation, defaults)
- 5 component tasks (Operation, Sequential, Parallel, Conditional, Map)
- 2 host config tasks (GraphologyHostConfig, ReactiveHostConfig)
- 4 reactive tasks (WorkflowRoot, node-status, max-concurrency, retry-semantics)
- 3 review tasks (foundation, reactive-and-hosts, complete-library)
- 5 meta cluster tasks (schema, graph, component, reactive, analysis layers)
- 1 API exports task

Validated with taskgraph: zero cycles, 38 tasks, 12 parallel generations.
Critical path: 12 tasks through reactive execution layer.
2026-05-21 20:24:44 +00:00

45 lines
1.9 KiB
Markdown

---
id: graph/queries
name: Implement graph query methods (topologicalOrder, ancestors, descendants, call graph queries)
status: pending
depends_on:
- graph/flowgraph-class
scope: moderate
risk: low
impact: component
level: implementation
---
## Description
Implement the query methods on FlowGraph that delegate to graphology and graphology-dag, plus the call-graph-specific observability queries.
## Acceptance Criteria
- [ ] `topologicalOrder(): string[]` — delegates to `graphology-dag.topologicalSort`, throws `CycleError` if cycles exist (should never happen after validated construction)
- [ ] `hasCycles(): boolean` — delegates to `graphology-dag.hasCycle`
- [ ] `findCycles(): string[][]` — delegates to graphology cycle detection (debugging)
- [ ] `ancestors(nodeId): string[]` — delegates to `graphology-dag.ancestors`
- [ ] `descendants(nodeId): string[]` — delegates to `graphology-dag.descendants`
- [ ] `predecessors(nodeId): string[]` — delegates to `graph.inNeighbors`
- [ ] `successors(nodeId): string[]` — delegates to `graph.outNeighbors`
- [ ] `reachableFrom(nodeIds): Set<string>` — custom BFS/DFS traversal from starting nodes
- [ ] Call graph queries: `filterByStatus(status): string[]`, `getRoots(): string[]`, `children(requestId): string[]`, `duration(requestId): number`, `lineage(requestId): string[]`
- [ ] `filterByStatus`: O(n) filter over `forEachNode()` — documented as sufficient for expected sizes
- [ ] `getRoots()`: returns nodes with `parentRequestId === undefined`
- [ ] `lineage()`: ancestor chain from root to target
- [ ] Unit tests for each query method with known graph structures
## References
- docs/architecture/flowgraph-api.md — query methods, call graph queries
- docs/architecture/operation-graph.md — query delegation to graphology-dag
- docs/architecture/call-graph.md — observability queries
## Notes
> To be filled by implementation agent
## Summary
> To be filled on completion