Wiki Claims Re-Verify Sweep

Wiki pages cite sources but no mechanism re-checks those citations after ingest. URLs 404, paywalls appear, content gets rewritten. This skill closes that loop: it extracts cited statements from existing wiki pages, dispatches them through cogni-claims for verification (which already does the WebFetch + LLM compare against the live source), and writes a sweep report so the user can see drift at a glance.

This is a report-only skill. It does not edit the per-type page dirs. The report tells the user which pages have deviated or unavailable claims; the user decides whether to run wiki-update to mark them stale. This keeps diff-before-write inside wiki-update where it belongs.

This is a pull-mode primitive — the user invokes it on a schedule that fits their workflow. There is no auto-trigger.

Read ${CLAUDE_PLUGIN_ROOT}/references/karpathy-pattern.md once before proceeding to re-anchor on the three-layer model — sweep artefacts land in raw/, never in the per-type page dirs.

When to run

• User asks to re-verify, sweep, or audit existing wiki citations
• After a long stretch (months) of accumulated wiki growth, to surface URL drift
• Before a major wiki release or share-out, to spot embarrassing dead citations
• Targeted: "re-verify just the ai-safety-evals page" → --page <slug>

Never run when