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Benchmark and improve tool-search ranking with indexed BM25

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#2,996 2 則留言 0 個 reaction 已指派 0 人 在 GitHub 檢視

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@aniruddhaadak80 已經在處理了。

開始於 2026年9月24日。

  • #3331 來自 @aniruddhaadak80 —— 未關閉

評估

難度
5/5
預估耗時
一週以上
新手友好度
45/100
Issue 類型
功能
描述清晰度
基本清楚
活躍度
活躍
技術堆疊
go

研究方向

首先定位伺服器現有的 tool-search 實作,並檢視用於索引工具名稱、描述、參數名稱和參數描述的原型 benchmark 及其單元測試。與維護者確認首選範圍,然後針對包含 49 個查詢和 115 個工具的 benchmark 測量所選的排名策略,並回報檢索品質和延遲,且不得出現回歸。

由索引模型根據 Issue 內容生成。

描述

enhancement request ai review
Describe the feature or problem you’d like to solve

The GitHub MCP Server already exposes tool discovery/search functionality, but
there is no repeatable benchmark for measuring how reliably natural-language
queries retrieve the intended MCP tool.

As the tool inventory grows, a benchmark would make ranking changes measurable
and help prevent retrieval regressions.

This is separate from host-side deferred tool loading discussed in #1680. The
proposal only concerns ranking inside the server's existing tool-search
implementation.

Proposed solution

Add a hand-labelled benchmark covering natural-language intents across the
server's major toolsets, then compare the current heuristic with an indexed
BM25 implementation.

A prototype benchmark contains 49 queries over 115 unique tools and produced:

Strategy Recall@1 Recall@3 MRR@10 Query latency
Current heuristic 71.4% 81.6% 0.792 ~2.25 ms
Indexed BM25 71.4% 87.8% 0.802 ~34 µs
Hybrid RRF 73.5% 87.8% 0.823 ~2.38 ms

Indexed BM25 improved Recall@3 by 6.1 percentage points and was approximately
66x faster per query. The hybrid produced the strongest ranking quality.

Before submitting a PR, I would appreciate maintainer guidance on the preferred
scope:

  1. Benchmark harness only
  2. Benchmark plus indexed BM25
  3. Benchmark plus a hybrid ranking experiment
Example prompts or workflows
  • "Find open issues assigned to me across repositories"
  • "Read the files, reviews, and diff for a pull request"
  • "Download logs for a failed workflow job"
  • "Find exposed secrets detected in a repository"
  • "Add an issue to a GitHub project"
Additional context

The benchmark uses the complete current tool inventory and validates that every
labelled relevant tool exists. The prototype includes unit tests for indexing
tool names, descriptions, parameter names, and parameter descriptions.

主要語言
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22 小時 46 分鐘
30 天內合併 PR
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從這裡開始

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  3. Fork 儲存庫,在一個分支上完成修改。
  4. 送出 Pull Request,並在描述裡引用這個 Issue 編號。

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