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rUv 41efca8be3 dream(memory): #3056 hybridSearch reachable via explicit opt-in (evaluated, ACCEPT-scoped) (#3057)
* dream(memory): #3056 hybridSearch reachable via explicit opt-in without memoryService

The ADR-125 Phase 5 three-arm (dense+sparse+entity) RRF/MMR fusion
controller was fully built and tested but unreachable from any
production call site: its explicit-enable config override worked at
the isControllerEnabled() gate but the createController() factory
still unconditionally required a hand-built UnifiedMemoryService,
silently returning null otherwise. Falls back to the existing
this.backend when it type-guards as AgentDBAdapter-compatible,
reachable only via explicit controllers: { hybridSearch: true } --
default auto-enable behavior is unchanged.

New deterministic $0 benchmark quantifies the feature's actual
retrieval-quality effect for the first time (previously only
functional/unit tests existed): +0.267 aggregate recall@10, with a
disclosed, statistically significant regression on pure-paraphrase
queries where fusion noise dilutes an already-perfect dense signal.

Independent adversarial critic (fresh subagent): CONFIRMED-SAFE,
reproduced bit-for-bit. 75/75 tests passing in touched files, 458/459
in the full package (1 pre-existing environmental failure, unrelated).

Co-Authored-By: RuFlo <ruv@ruv.net>
Claude-Session: https://claude.ai/code/session_016T1JRz8NBeGGmxQJVPReWa

* dream(memory): #3056 update ledger with 2026-08-14..18 nights + PR #3057

Reconstructs the v2 live-entries table from PR/issue history since each
night's own LEDGER.md edit lives only on its unmerged branch and never
reaches main (0% merge rate). Adds tonight's row (memory, hybridSearch
reachability fix, ACCEPT scoped, witness b28714fb...).

Co-Authored-By: RuFlo <ruv@ruv.net>
Claude-Session: https://claude.ai/code/session_016T1JRz8NBeGGmxQJVPReWa

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-08-21 11:20:17 -04:00
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