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.
1.6 KiB
1.6 KiB
id, name, status, depends_on, scope, risk, impact, level
| id | name | status | depends_on | scope | risk | impact | level | ||
|---|---|---|---|---|---|---|---|---|---|
| reactive/max-concurrency | Implement maxConcurrency semaphore for Parallel groups | pending |
|
narrow | medium | component | implementation |
Description
Implement the reactive counting semaphore that enforces maxConcurrency on Parallel groups. When the root initializes signals for nodes in a Parallel group with maxConcurrency: N, a node's effective ready transition requires both preconditions.value === true AND runningCount < maxConcurrency.
Acceptance Criteria
- For each node in a Parallel group with
maxConcurrency, thecanStartcomputed wraps preconditions:preconditions.value && runningSiblingCount < maxConcurrency runningSiblingCountis a reactive computed derived from counting sibling nodes currently in"running"state- When a sibling completes and a slot opens, the next ready node transitions to ready/startable
- Parallel groups without
maxConcurrency(default): all siblings start immediately when preconditions met — no semaphore maxConcurrencyis a runtime scheduling hint — the DAG doesn't encode it- Unit tests: parallel group with maxConcurrency: 2 limits to 2 running at a time, slot opens → next node starts, no maxConcurrency → all start immediately
References
- docs/architecture/reactive-execution.md — maxConcurrency, counting semaphore
- docs/architecture/workflow-templates.md — Parallel.maxConcurrency prop
Notes
To be filled by implementation agent
Summary
To be filled on completion