Epic: Task DAG queries and orchestrator supportbacklog_item

epictask-systemorchestration

Phase 3 of the Coordination/Task System. Adds DAG traversal, critical path analysis, evidence aggregation, and dependency-aware unblocking to the task system. Builds on the core task infrastructure (Phases 1-2, now complete).

Acceptance Criteria

Critical path analysis identifies blocking chains

Evidence links aggregate up the parent tree

task_list supports DAG traversal (subtree, ancestors, blocked-by)

Blocked tasks auto-transition to in_progress when dependencies complete

Linked from

Evidence aggregation up the task parent tree Dependency-aware auto-unblocking for tasks DAG traversal options for task_list queries Task critical path analysis via dependency graph traversal

Links to

Task critical path analysis via dependency graph traversal Evidence aggregation up the task parent tree DAG traversal options for task_list queries Dependency-aware auto-unblocking for tasks