Archive Issue

Once an issue closes, GitHub is the source of truth for its scope — but its requirements, architecture, and code-review docs under specs/ still hold reasoning worth keeping. This skill retires them out of specs/ straight into the GitHub wiki (specs/wiki-structure.md is the authoritative layout spec — read it before doing anything else if you haven't already; the Correlation model section there is what Steps 1–2 below execute). Nothing archived is ever committed to the main repo — the wiki is the only place this content lives.

Step 0 — Ensure the local wiki clone is current

Work happens in a local working clone of the wiki repo, conventionally at .wiki/ in the main repo root (gitignored — never part of this repo's history):

• If .wiki/ doesn't exist: git clone <repo>.wiki.git .wiki.
• If it exists: git -C .wiki pull --ff-only before making any changes, so you're not archiving on top of a stale copy.

All of Steps 3–5 write into this clone, not into the main repo.

Step 1 — Resolve the anchor, confirm closed

Take the issue number (or plan-task ID, e.g. #P1-1) from the user — pass it explicitly (/archive-issue 70, or "archive issue 70") whenever you know it; this pins Step 2's resolution to that one issue's artifacts instead of leaving them to be found by scanning, which is where cross-issue mix-ups come from. The issue record (specs/issues/<ID>-<slug>.md) is the normal anchor for everything that follows — find it by scanning specs/issues/*.md frontmatter for issue: N (if given a number) or by its filename prefix (if given a plan-task ID). From that one file, read off: primary plan-task <ID>, slug <slug>, issue number N, GitHub URL, and phase (derived from <ID>'s prefix P<phase>-<n>; no ID → Unphased).

If the issue record is already gone but other artifacts for that N still linger (a partial or interrupted prior archive can leave specs/context/<N>.md, a specs/requirements// specs/architecture/ file, or a specs/reviews/REV-*.md / CODE-REVIEW-*.md behind without the issue record) — don't treat the missing record as "nothing to archive." Derive <ID>/<slug> from whatever's left instead: specs/context/<N>.md's frontmatter description: carries #P<phase>-<n> — <title>; a surviving REQ-<slug>.md/ARCH-<slug>.md filename carries <slug> directly; gh issue view N gives the title, URL, and closed state regardless. Confirm closed via gh issue view N in this case since there's no issue record to have already recorded it.

Confirm the issue's GitHub state is closed. If it's still open, stop and say so — this is a retirement step, not a drafting one; open-issue artifacts stay in specs/ where the active pipeline expects them. Make no changes to specs/ or .wiki/.

If the issue's title notes it absorbed another plan-task (e.g. "#13 absorbs #P0-5"), the absorbed ID is noted in the hub overview later — it does not change which phase this issue is grouped under (the primary task's phase always wins).

Step 2 — Derive the source artifacts from the anchor

Using <ID>, <slug>, and N from Step 1, resolve each source directly (no searching required — this is the point of the anchor):

Most issues (bugs, chores, small enhancements) never had a REQ/ARCH/review doc — only add the sub-pages that actually exist. Don't invent placeholder pages for missing docs.

Never rename a file on archive. Only its directory changes (specs/requirements/ → issue-NNN/, etc.) — the filename itself is untouched. This is deliberate (see wiki-structure.md's Rules): generic names like requirements.md/review.md were tried once and reverted the same day because they break recognition against the specs/ names these documents are already known by.

Multiple reviews: if more than one review report's Target branch matches feat/<N>/… (multiple PRs against the same issue), every one gets its own sub-page under its own original name — REV-PR-60.md and REV-PR-72.md (or their CODE-REVIEW-*.md equivalents) both land in issue-NNN/ unchanged, no renaming needed since their own filenames already disambiguate them. A branch-mode review (no PR — its Target names a branch/commit rather than a PR URL) archives the same way under its own name (e.g. REV-BRANCH-feat-13-…md, or the legacy CODE-REVIEW-BRANCH-feat-13-…md); the branch-mode nature doesn't block sub-page creation, only affects the hub's PR(s): line (Step 3).

If a review report's branch doesn't obviously match the issue slug, check its Target metadata row before attributing it — don't archive a review that belongs to a different issue. If it genuinely can't be matched, leave it out and flag it to the user rather than guessing.

Step 3 — Write the hub page

.wiki/issue-NNN.md (zero-padded to 3 digits). The metadata line is mandatory and must preserve every correlation key, since specs/ is about to be emptied of them:

**Plan task:** #P<X>-<Y> · **Phase:** <X> · **PR(s):** #NN[, #MM…] · **Closed:** YYYY-MM-DD · [GitHub issue #N](url)

• No plan-task ID → **Plan task:** — (unphased), and this issue's index entry goes under ## Unphased in Step 5, not a phase heading.
• No PR (branch-mode review, or no review at all) → **PR(s):** — (branch review) or **PR(s):** — respectively; never omit the field.
• Absorbed another task → note it in the overview paragraph below the metadata line (e.g. "absorbs #P0-5"), not as a second metadata field or a second index entry.

Below the metadata line: a paragraph of what shipped (pull from the issue body's Summary — don't re-derive it), a bullet list linking each sub-page that exists, and a one-line Outcome pulled from the acceptance criteria / review verdict. Follow the shape of the wiki's existing issue-013.md (the worked example referenced in specs/wiki-structure.md) for the overview/Outcome prose style.

Link sub-pages by bare basename, never full path. Write [Label](CODE-REVIEW-PR-63), not [Label](issue-NNN/CODE-REVIEW-PR-63.md) — even though the file lives at issue-NNN/CODE-REVIEW-PR-63.md. GitHub's wiki renders a .md-suffixed link as a raw-file link instead of a wiki-page link, which silently breaks navigation (this regressed for issues #20–#26 before being caught and fixed — see the Rules in specs/wiki-structure.md). Drop both the issue-NNN/ directory prefix and the .md extension in the link text; the directory nesting is only for organizing the wiki's git tree.

Step 4 — Write the sub-pages

Carry the REQ/ARCH/review content over largely as-is — these are already well-formed docs; don't rewrite them, just relocate them into .wiki/issue-NNN/ under their original filenames and drop anything that's now stale (e.g. a REQ doc's "next step: run /plan-architecture" footer no longer applies once archived). The sub-page vocabulary is open — REQ/ARCH/CODE-REVIEW cover the common case, spike findings and ADR/decisions docs (whatever they're actually named) cover the rest — but every one keeps its specs/ filename verbatim. Never invent a placeholder for a document that doesn't exist, and never rename one that does.

Step 5 — Update the index

Both .wiki/Home.md and .wiki/_Sidebar.md use the same phase-grouped structure (specs/wiki-structure.md's "The model" section):

• Determine the group: the phase from Step 1 (## Phase <X> — <name>), or ## Unphased if the issue has no plan-task ID.
• Find or create the heading. If this is the first issue archived into that phase in either index file, create the ## Phase <X> — <name> (or ## Unphased) heading — append new phase headings in phase order, with ## Unphased last. On Home.md, a newly created phase heading gets a ✓/◐ status marker read from that phase's current exit-criteria state in specs/claude-lens-plan.md.
• Insert in issue-number order within the group — find the correct ascending position among that group's existing entries, not just appended at the end.
• Refresh the phase's ✓/◐ marker on Home.md if plan.md's exit criteria for that phase have changed since the marker was last set — this can catch drift beyond just the issue being archived right now (e.g. stale checkboxes elsewhere in plan.md); fix plan.md too if you find it.
• Create .wiki/Home.md / .wiki/_Sidebar.md (with a one-line header, phase-grouped) if this is the first archived issue overall.

Step 6 — Retire the sources from the main repo

Remove the archived files from the main repo (git rm, in the main repo, not .wiki/) — specs/issues/<ID>-<slug>.md, specs/context/<N>.md, whichever of specs/requirements// specs/architecture/ were mirrored, and every matching review report wherever Step 2 found it (specs/reviews/, repo root, specs/review/, or elsewhere) — remove from its actual location, not an assumed one. This is the "leave nothing behind" half of the convention: once an issue is archived, nothing about it should remain anywhere in the main repo — not just specs/. Commit this to the main repo separately from the wiki push in Step 7 — they're two different repos with two different histories.

Step 7 — Commit and push the wiki, with confirmation

Inside .wiki/: git add, commit (batch multiple issues archived in one pass into one commit if convenient), then push to origin. Pushing to the wiki repo is a push to shared external state — confirm with the user before pushing, same as any other push, even though the commit itself is harmless to make locally. Report what moved where (source path → wiki page) so the user can review before/after the push.