lakehouse/mcp-server
root 95c26f04f8 Path 1 negative signal + Path 2 pattern discovery + name validation
New:
- /vectors/playbook_memory/patterns: meta-index pattern discovery.
  Given a query, finds top-K similar playbooks, pulls each endorsed
  worker's full workers_500k profile, aggregates shared traits (cert
  frequencies, skill frequencies, modal archetype, reliability
  distribution), returns a human-readable discovered_pattern. Surfaces
  signals operators didn't explicitly query — the original PRD's
  "identify things we didn't know" dimension.
- /vectors/playbook_memory/mark_failed: records worker failures per
  (city, state, name). compute_boost_for applies 0.5^n penalty per
  recorded failure, so 3 failures quarter a worker's positive boost and
  5 effectively zero it. Path 1 negative signal — recruiter trust
  depends on the system NOT recommending people who no-showed.
- Bun /log_failure: validates failed_names against workers_500k
  (same ghost-guard as /log), forwards to /mark_failed.

Improved:
- /log now validates endorsed_names against workers_500k for the
  contract's city+state before seeding. Ghost names (names that don't
  correspond to real workers) are rejected in the response and excluded
  from the seed, preventing silent boost failures.
- Bun /search auto-appends `CAST(availability AS DOUBLE) > 0.5` to
  sql_filter when the caller didn't constrain availability. Opt out
  with `include_unavailable: true`. Recruiter trust bug: surfacing
  already-placed workers breaks the first call.
- DEFAULT_TOP_K_PLAYBOOKS 25 → 100. Direct cosine measurement showed
  similarities cluster 0.55-0.67 across all playbooks regardless of
  geo, so k=25 missed relevant geo-matched playbooks. Brute-force is
  still sub-ms at this size.

Verified end-to-end on live data:
- Ghost names rejected on /log + /log_failure
- Availability filter drops unavailable workers from candidate pool
- Pattern discovery on unseen Cleveland OH Welder query returned
  recurring skills (first aid 43%, grinder 43%, blueprint 43%) and
  modal archetype (specialist) across 20 semantically similar past
  playbooks in 0.24s
- Negative signal: Helen Sanchez boost dropped +0.250 → +0.163 after
  3 failures recorded via /log_failure (34% reduction)
2026-04-20 14:55:46 -05:00
..

mcp-server

To install dependencies:

bun install

To run:

bun run index.ts

This project was created using bun init in bun v1.3.9. Bun is a fast all-in-one JavaScript runtime.