Retrospective Repository Diagnosis

Use only when $tk-compound or /tk-compound is explicitly selected. Diagnose recurrence across completed PRs and related accessible history; do not automatically run after a session. The default result is a chat report. This skill does not edit source, tests, configuration, project knowledge, skills or Git history; publish issues/PRs; or invoke another skill. A later implementation request belongs to its authorized change owner.

Scope and evidence

--since <duration-or-date> overrides the review-activity window; --focus <area> narrows the diagnostic subject (for example, testing or review). Explicit PRs limit the candidate set. Invalid or contradictory modifiers need clarification.