Self-review follow-ups on the ranking hardening series:
- the avoid_when boilerplate filter compared lowercased phrases against
a mixed-case constant, so the "需要该 Shortcut..." noise filter never
fired; the constant is now lowercase (no ranking change: the boilerplate
was never contained by any query, sentinel 990/1123 unchanged)
- add direct unit coverage for the avoid_when penalty (echoed-phrase
match, unrelated-query pass-through, boilerplate filter, partial
overlap, explain annotation)
- update tool-search-ranking-evaluation.md to the post-hardening
numbers (ensemble R@5 88.16%, Forbidden 0%/0%, action_v1 shadow
84.24% with the trade-off recorded)
- drop the dead algorithm_freeze manifest block; nothing consumes it
after the hash decoupling
玉澜
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