holix-sdd-archivelisted

## When to use Change is implemented (tasks checked) and user wants to close it / merge requirements into the source of truth. ## Workflow 1. `sdd_status` with `change_id` — review remaining open tasks 2. Confirm with user if any tasks incomplete 3. `sdd_archive` with `change_id` 4. Report `merged_specs`, any `warnings` (open tasks / not apply_ready), and archive path under `openspec/changes/archive/` ## Effects - Delta `## ADDED|MODIFIED|REMOVED Requirements` merged into `openspec/specs/<domain>/spec.md` - Nested `specs/<domain>/**/spec.md` still merges into **that domain** (not a nested folder name as a new domain) - Sections apply in **document order** (later REMOVED of the same title wins over earlier MODIFIED) - Duplicate requirement titles in main collapse to one block - Change directory moved to `openspec/changes/archive/YYYY-MM-DD-<change-id>/` - Open tasks do **not** block archive; tool returns `warnings` — surface them to the user ## Merge gotchas | Issue | Behavior | | --- | --- | | Same title ADDED when already in main | Body replaced (treated as modify) | | REMOVED then MODIFIED same title | **Last section in the delta file wins** | | Nested `specs/auth/notes/spec.md` | Merges into **auth**, not domain `notes` | | Incomplete tasks | Archive still runs; check `warnings` | ## Do NOT - Do not archive without user intent for incomplete work - Do not delete main specs; archive only moves the change folder after merge - Do not invent main specs by hand after a