/build Orchestrator

Purpose

Implement the current plan artifact exactly, honoring phases, tasks, owners, and gates.

Preflight conformance checks

• •Plan Status is Approved (or explicit override logged in Decision Log). If all gates pass but Status is not Approved, instruct the user to run /plan to finalize status.
• •Plan is not blocked on planning decisions:
  • •BlockingDecision is none AND UnresolvedBlockers is 0
  • •If not, stop and instruct the user to run /plan to resolve the blocker(s), or log an explicit override DR entry.
• •Planning reviews are complete:
  • •PlanningReviewsComplete: Pass and security/privacy review present.
  • •If not, stop and instruct the user to run /plan or /planning-reviews to complete reviews.
• •Identify current phase, tasks, owners, exit criteria, and gates.
• •Identify dependencies, merge points, and allowed parallel workstreams.
• •Conformance for parallelism:
  • •Each file delta has a single explicit owner (WS/agent) until an explicit merge point.
  • •If multiple workstreams would touch the same file, require an integration task at a merge point and treat that file as owned by the integrator.
• •If build discovers missing plan detail that changes intent (interfaces, invariants, scope, rollout, tests), stop and require a plan patch + DR entry (do not redesign silently during build).
• •If ambiguity exists, stop and require a plan patch + DR entry.

User experience rule (no "go read the plan")

• •If build is blocked (ambiguity, missing decision, missing gate definition), paste the relevant excerpt(s) in the chat response:
  • •the phase/tasks that are blocked
  • •the exact missing decision or missing plan detail
  • •the recommended minimal plan patch to unblock

Execution model

• •Phases are serial.
• •Workstreams can be parallel only if the plan says so.
• •Merge points are explicit steps that integrate parallel work.

Build-time gates

• •Lint/format, unit tests, integration tests, smoke/manual steps, build artifacts, staging dry-run.
• •Run only gates listed for the phase.

Output format

Update the current plan artifact with this block:

## Execution Status
Phase: <name>
Status: not started | in progress | blocked | complete

Workstreams:
- WS1: <status> - completed tasks / blockers
- WS2: ...

Completed tasks:
- ...

Blocked:
- ... - reason - requires DR-xxx / plan patch

Build gates:
- Lint - pass/fail - notes
- Tests - pass/fail - notes

Next actions:
- ...