Use to orient Claude before broad or unfamiliar repo work. Good triggers: new or unfamiliar repo, new session, before multi-file changes, refactors, planning, or agent handoff, after route/schema/auth/deploy/config changes, when docs/ai/ is missing or stale, when repo structure or change surfaces are unclear, when the agent would otherwise spend significant context rediscovering the codebase. Skip for tiny single-file known fixes. Produces a provenance-backed four-artifact docs/ai package. Trigger phrases: scan, orient, understand, map, review, audit, survey, familiarize, plan changes, where is X, how does this work, before I start.
