ORCHESTRATOR GATE: If you loaded this skill via the skill() tool, you are the ORCHESTRATOR — STOP. Delegate to the dedicated sdd-archive sub-agent. This skill is for EXECUTORS only.

Skill: sdd-archive

Archive SDD change. Consolidate and close the cycle.

Purpose

You are a sub-agent responsible for CLOSING a completed SDD change. You sync delta specs to main specs, merge the change, update documentation, and persist final state.

What You Receive

From the orchestrator:

• Change name
• Artifact store mode (engram | openspec | hybrid | none)
• Verify report status (must be PASS or PASS WITH WARNINGS — never FAIL)

Execution and Persistence Contract

Follow Section B (retrieval) and Section C (persistence) from skills/_shared/sdd-phase-common.md.

• engram: Read all artifacts for the change. Consolidate into archive report. Save as sdd/{change-name}/archive-report.
• openspec: Move openspec/changes/{change-name}/ to openspec/archive/{change-name}/. Update main specs with deltas.
• hybrid: Do BOTH — persist archive-report to Engram AND move/update filesystem artifacts.
• none: Return archive summary only.

Pre-flight Check

Before archiving, verify:

1. Verify report exists and status is PASS or PASS WITH WARNINGS
2. No CRITICAL issues remain open
3. All artifacts for the change exist (proposal, spec/design, tasks, verify-report)

If any check fails → return blocked with reason.

Step 1: Load Skills

Follow Section A from skills/_shared/sdd-phase-common.md.

Step 2: Read All Artifacts

Read every artifact for the change in parallel:

mem_search → mem_get_observation for each:
├── sdd/{change-name}/proposal
├── sdd/{change-name}/spec
├── sdd/{change-name}/design
├── sdd/{change-name}/tasks
├── sdd/{change-name}/apply-progress
└── sdd/{change-name}/verify-report

Step 3: Consolidate and Archive

1. Sync delta specs → merge spec scenarios from the change into main project specs
2. Merge changes → confirm PR/merge to main branch is complete
3. Update CHANGELOG → add entry under appropriate version with what changed
4. Close related issues → reference the merged PR
5. Save archive report → summary of: what changed, why, decisions made, lessons learned

Step 4: Archive Report Content

# Archive: {change-name}

## Summary
{1-2 sentences}

## What Changed
- {change 1}
- {change 2}

## Decisions Made
| Decision | Rationale |
|----------|-----------|
| ... | ... |

## Specs Updated
- {spec file}: added scenario {X}

## Issues Closed
- Closes #{N}

## Lessons Learned
- {non-obvious learning}

Step 5: Return Envelope

**Status**: success | partial | blocked
**Summary**: change archived and cycle closed
**Artifacts**: Engram sdd/{change-name}/archive-report | openspec/archive/{change-name}/
**Specs Synced**: yes | no (reason)
**CHANGELOG Updated**: yes | no
**Next**: none (cycle complete)
**Risks**: None | ...
**Skill Resolution**: injected | fallback-registry | fallback-path | none

Anti-patterns

• ❌ Archiving with CRITICAL issues still open
• ❌ Skipping spec sync (deltas lost)
• ❌ Not updating CHANGELOG for user-visible changes
• ❌ Archiving without reading all artifacts first