flowgraph/tasks/reactive-node-status.md at 18999fb38e71fdccbda330c3e6cf0d57f110c8b1

Files

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

2.1 KiB

Raw Blame History

id, name, status, depends_on, scope, risk, impact, level

name

status

depends_on

scope

risk

impact

level

reactive/node-status

Implement node status signal management and computed preconditions + blockedByFailure

pending

reactive/workflow-root

schema/enums

moderate

high

component

implementation

Description

Implement the reactive node status management layer: signal<NodeStatus> per-node lifecycle tracking, computed<boolean> precondition resolution, computed<boolean> blockedByFailure detection, and the effects that wire them together to drive automatic state transitions.

Acceptance Criteria

src/reactive/node-status.ts exports precondition computation, blockedByFailure computation, and status transition effects
computePreconditions(node, ctx): boolean — Sequential: previous sibling completed/skipped; Parallel: parent preconditions met; Conditional: condition evaluates; root nodes: true (no predecessors)
computeBlockedByFailure(node, ctx): boolean — any predecessor is failed/aborted
Start effect: if (preconditions.value && (status === "idle" || "waiting")) → transition to "ready"
Abort effect: if (blockedByFailure.value && (status === "idle" || "waiting")) → transition to "aborted"
skipped satisfies preconditions — a skipped predecessor is treated as "completed for precondition purposes"
failed and aborted block preconditions — dependents can never become ready
Failure follows dependency edges, not structural scope — sibling branches in Parallel are independent
Effects are tracked by WorkflowReactiveRoot.effectDisposers and cleaned up by dispose()
Unit tests: sequential preconditions, parallel preconditions, join (fork-join) preconditions, blockedByFailure cascade, skipped satisfies preconditions, failure isolation in parallel branches

References

docs/architecture/reactive-execution.md — computed preconditions, blockedByFailure, status propagation effects, failure isolation
docs/architecture/host-configs.md — WorkflowNode, prerequisite computation

Notes

To be filled by implementation agent

Summary

To be filled on completion

2.1 KiB Raw Blame History