Closes the long-standing backlog item from abfa5463. memory.search now
accepts an optional `minScore` parameter (Zod range 0..1) that drops hits
below the given Reciprocal Rank Fusion score. Default behavior is
unchanged — when minScore is unset, every fused result is returned, same
as today.
The original design memo suggested defaulting to 0.020, but that would
exclude valid pure-semantic matches (one ranker at rank 1 = 1/61 ≈
0.0164). Real-world Phase 2 testing surfaced exactly that case (the
"expose TLS" → HAProxy memory hit). Shipping unfiltered-by-default and
exposing the knob lets specific callers opt into stricter filtering
(e.g. ~0.025 to require two rankers to fire at rank 1) without
penalising legitimate semantic-only hits for the rest.
Tool description updated; per-source rank breakdown remains the primary
confidence signal for the model.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
shadowdaoandClaude Opus 4.7
1b234069e3