Back to Search-quality baseline: acronym / synonym recall (Phase 1.4, v1.2.0 candidate)

Baseline | Class | Headline
--- | --- | ---
`search-quality-baseline-v1.2.0.md` | A + B (canonical lookup, framework root) | MRR 0.9467, P@1 perfect on 46/50
`search-quality-deprecation-baseline-v1.2.0.md` | E (deprecation-aware) | Swift wins 30/30, p = 0.0078
`search-quality-crosssource-baseline-v1.2.0.md` | F (cross-source canonical) | 19/19 conditional, p = 1.9 × 10⁻⁶
`search-quality-fragment-baseline-v1.2.0.md` | D (CamelCase fragment) | P@1 = 1.0, P@5 = 0.92
`search-quality-acronym-baseline-v1.2.0.md` (this doc) | C (acronym / synonym) | 4/22 top-1 (18%). framework_aliases.synonyms exists but does not appear to route bare acronym queries to canonical framework. Worst-performing class.

Five of eight Phase 1.x classes from §1.4 now have documented baselines. Three remain: G (prose), H (symbol-attribute), Phase 1.7 (anti-hallucination agent-end-to-end).