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Add MCP tools for GitHub Stacked PRs (gh stack link / sync / view)

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@ruhaanpathan 已經在處理了。

開始於 2026年7月19日。

  • #2908 來自 @ruhaanpathan —— 未關閉

評估

難度
5/5
預估耗時
一週以上
新手友好度
35/100
Issue 類型
功能
描述清晰度
基本清楚
活躍度
活躍
技術堆疊
go
領域
api, backend

研究方向

先檢視現有的 create_pull_request 和 update_pull_request 工具,然後將它們的 base 鏈結行為與提議的 get_stack 和 link_stack 操作進行比較。當 agents 能夠讀取原生 stack,並根據依序排列的 pull request 或 branch 清單建立或更新 stack,同時傳回有序的 layer 和 trunk 時,最小 v1 即告完成。

由索引模型根據 Issue 內容生成。

描述

Describe the feature or problem you’d like to solve

Agents that manage stacked / dependent PRs (each PR’s base is the branch below it) can already create and re-base-point individual PRs via create_pull_request / update_pull_request, but they have no first-class way to:

  1. Discover or read a GitHub native stack (the stack object / annotations created by gh stack link / gh stack submit)
  2. Create or update that stack as a unit
  3. Cascade-rebase / sync the tower when trunk moves (gh stack sync / gh stack rebase)
  4. Merge bottom-up with stack-aware ordering

Today the only path to native stacks is the gh stack CLI extension (github/gh-stack), which many agent environments intentionally don’t expose (token stays on a host proxy; container gh is stubbed; agents talk to GitHub through this MCP).

Proposed solution

Add a small stack toolset (or extend pull_requests) that mirrors the operations agents already need from gh stack, without shelling out:

Tool Purpose
list_stacks / get_stack Resolve a stack by number, PR number, or head branch; return ordered PRs + trunk
link_stack Create/update a stack from an ordered list of PR numbers or branches (gh stack link)
update_stack Reorder / reparent / drop layers
sync_stack Cascade-rebase onto trunk + push with lease semantics (gh stack sync) — or return structured rebase instructions if server-side git is out of scope
merge_stack Merge bottom-up, stopping on the first non-mergeable layer

Minimum useful v1: read + link (get_stack, link_stack). Agents can already do Path-B base-chaining with update_pull_request(base=…); what’s missing is the native stack object and a single call that wires N PRs correctly.

Example

link_stack(
  owner: "org",
  repo: "app",
  base: "develop",          # trunk
  pull_numbers: [7609, 7797, 7810, 7815, …]  # bottom → top
)
→ { stack_number: 7928, prs: [...] }

get_stack(owner, repo, stack_number: 7928)
→ ordered layers with number, head, base, mergeable, reviewDecision
主要語言
Go
星號
33.3k
分支
5.1k
平均合併
22 小時 46 分鐘
30 天內合併 PR
17

環境準備

從這裡開始

  1. 先讀完整個 Issue,再讀專案的貢獻指南。
  2. 在 Issue 下留言說明你要接手 —— 這能避免兩個人做同樣的事。
  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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