ef10d2e7c9
The tool-description prose had accumulated playbook-style guidance over the course of development (pre-flight rules, mode-picking policy, multi-anchor recipe, anti-pattern teaching, reading-order advice). That material now lives in the session-recall skill where it can be loaded on demand rather than shipping in every system prompt. Schema description now covers only what the tool IS: what each mode returns, default-mode resolution, anchor contract, FTS5 syntax, and a one-paragraph 'when to use'. Mode enum description shrunk to three one-line entries. Cost claims generalised — no fixed dollar figures since aux-LLM cost depends on the user's configured aux model. Net: ~9.5 KB -> ~3 KB of description prose. One schema-content assertion in tests updated to match the new phrasing while keeping the same intent (cross-session language exists; no current-session nudge).