Hivemind turns agent traces into skills and shares with your team

Summary

SessionStart reads hivemind_rules / hivemind_goals (context renderer) and skills (auto-pull) on every start, relying on catching relation does not exist. The client handled it, but the SELECT still failed server-side, so pg-deeplake logged a 42P01 per read on every fresh/empty workspace — the single largest cluster in the prod error digest (~1,060/24h, dominated by hivemind_goals/hivemind_rules/skills).

This gates those reads on a trusted table list so we never issue the SELECT for a table that isn't there.

• DeeplakeApi.knownTablesOrNull() — returns the cached table list, or null when the lookup is untrusted (lets callers tell an empty workspace apart from a failed fetch).
• renderContextBlock and runPull take an optional tableExists predicate; when it reports a table absent, the SELECT is skipped (section/rows empty).
• Wired from the read entrypoints: hooks/session-start.ts (claude), hooks/hermes, hooks/cursor, commands/context.ts, and skillify/auto-pull.ts. (codex doesn't render the block; it only auto-pulls, covered centrally.)

Fallback preserved: the existing isMissingTableError catch stays. When the list is unavailable (predicate omitted), behavior is unchanged — a transient lookup blip never drops a read of a table that exists. The pre-check only fast-skips when we have a confident list showing the table is absent.

listTables() is cached and already warmed by the write paths each session, so this is typically zero extra HTTP calls.

Scope: kills the bare-name reads (hivemind_rules/hivemind_goals/skills). Schema-qualified stragglers (default.sessions, etc.) come from SDK/shell paths and are out of scope.

Test plan

• [x] npm run typecheck clean
• [x] New regressions: renderer + pull skip the SELECT (assert no query fired) when tableExists reports absent, and still SELECT when present
• [x] Updated DeeplakeApi test mocks with knownTablesOrNull()
• [x] Touched-module suites green; full suite green except 5 pre-existing failures unrelated to this change (cli-index / install-consent install-consent flow, standalone-embed-client defaults — none import these modules)

Summary by CodeRabbit

• New Features

  • Added table existence checking to prevent errors when querying non-existent database tables during initial setup.

• Bug Fixes

  • Improved handling of missing database tables in context rendering and data synchronization to gracefully skip unavailable resources instead of failing.

• Tests

  • Added test coverage for table existence validation logic across multiple features.