tsa-index

Manage the persistent AST cache / index. Refresh, force-rebuild, inspect cache state, diff one file's AST between commits, advise on parser readiness for a language. Mostly ops/infra, not daily agent work. Use when: — "Re-index the project" / "force rebuild AST cache" — "Why is callees returning unknown" (likely stale index) — "AST diff this file vs last commit" (structural diff, not text diff) — "What language…