github-triage

GitHub 分诊 - 只读分析器

只读 GitHub 分诊协调器。获取未关闭的问题/PR，进行分类，并为每个条目启动 1 个后台 `quick` 子 Agent。每个子 Agent 都会进行分析并写入报告文件。绝不修改 GitHub。

架构

1 个问题/PR = 1 个 task_create = 1 个 quick 子 Agent（后台）。绝无例外。

规则	值
类别	quick
执行方式	run_in_background=true
并行度	同时处理所有条目
跟踪	每个条目创建 1 个 task_create
输出	/tmp/{YYYYMMDD-HHmmss}/issue-{N}.md 或 pr-{N}.md

---

零操作策略（绝对要求）

<zero_action> 子 Agent 绝不能运行任何会写入或修改 GitHub 状态的命令。

禁止（包括但不限于）： gh issue comment、gh issue close、gh issue edit、gh pr comment、gh pr merge、gh pr review、gh pr edit、gh api -X POST、gh api -X PUT、gh api -X PATCH、gh api -X DELETE

允许：

• gh issue view、gh pr view、gh api（仅限 GET）——读取 GitHub 数据
• Grep、Read、Glob——读取代码库
• Write——仅将报告文件写入 /tmp/
• git log、git show、git blame——读取 Git 历史（用于查找修复提交）

任何 GitHub 修改都属于严重违规。 </zero_action>

---

证据规则（强制要求）

**报告中的每项事实陈述都必须附有 GitHub 永久链接作为证明。**

永久链接是指向特定提交中特定行或范围的 URL，例如： https://github.com/{owner}/{repo}/blob/{commit_sha}/{path}#L{start}-L{end}

如何生成永久链接

1. 使用 Grep/Read 查找相关文件和行。
2. 获取当前提交 SHA：git rev-parse HEAD
3. 构造链接：https://github.com/{REPO}/blob/{SHA}/{filepath}#L{line}（范围使用 #L{start}-L{end}）

规则

• 没有永久链接 = 不得提出该项声明。 如果无法用永久链接支持某项陈述，请改为写明“未找到证据”。
• 没有永久链接的陈述必须明确标记为 [UNVERIFIED]，且不具备任何权重。
• 指向 main/master/dev 分支的永久链接不可接受——只能使用提交 SHA。
• 分析 Bug 时：链接到存在问题的代码。验证修复时：链接到修复提交的差异。

---

阶段 0：设置

REPO=$(gh repo view --json nameWithOwner -q .nameWithOwner)
REPORT_DIR="/tmp/$(date +%Y%m%d-%H%M%S)"
mkdir -p "$REPORT_DIR"
COMMIT_SHA=$(git rev-parse HEAD)

将 REPO、REPORT_DIR 和 COMMIT_SHA 传递给每个子 Agent。

---

---

阶段 1：获取所有未关闭条目（已修正）

重要： body 和 comments 字段可能包含会导致 jq 解析失败的控制字符。请先获取基本元数据，然后由子 Agent 逐条获取完整详情。

# Step 1: Fetch basic metadata (without body/comments to avoid JSON parsing issues)
ISSUES_LIST=$(gh issue list --repo $REPO --state open --limit 500 \
  --json number,title,labels,author,createdAt)
ISSUE_COUNT=$(echo "$ISSUES_LIST" | jq length)

# Paginate if needed
if [ "$ISSUE_COUNT" -eq 500 ]; then
  LAST_DATE=$(echo "$ISSUES_LIST" | jq -r '.[-1].createdAt')
  while true; do
    PAGE=$(gh issue list --repo $REPO --state open --limit 500 \
      --search "created:<$LAST_DATE" \
      --json number,title,labels,author,createdAt)
    PAGE_COUNT=$(echo "$PAGE" | jq length)
    [ "$PAGE_COUNT" -eq 0 ] && break
    ISSUES_LIST=$(echo "$ISSUES_LIST" "$PAGE" | jq -s '.[0] + .[1] | unique_by(.number)')
    ISSUE_COUNT=$(echo "$ISSUES_LIST" | jq length)
    [ "$PAGE_COUNT" -lt 500 ] && break
    LAST_DATE=$(echo "$PAGE" | jq -r '.[-1].createdAt')
  done
fi

# Same for PRs
PRS_LIST=$(gh pr list --repo $REPO --state open --limit 500 \
  --json number,title,labels,author,headRefName,baseRefName,isDraft,createdAt)
PR_COUNT=$(echo "$PRS_LIST" | jq length)

if [ "$PR_COUNT" -eq 500 ]; then
  LAST_DATE=$(echo "$PRS_LIST" | jq -r '.[-1].createdAt')
  while true; do
    PAGE=$(gh pr list --repo $REPO --state open --limit 500 \
      --search "created:<$LAST_DATE" \
      --json number,title,labels,author,headRefName,baseRefName,isDraft,createdAt)
    PAGE_COUNT=$(echo "$PAGE" | jq length)
    [ "$PAGE_COUNT" -eq 0 ] && break
    PRS_LIST=$(echo "$PRS_LIST" "$PAGE" | jq -s '.[0] + .[1] | unique_by(.number)')
    PR_COUNT=$(echo "$PRS_LIST" | jq length)
    [ "$PAGE_COUNT" -lt 500 ] && break
    LAST_DATE=$(echo "$PAGE" | jq -r '.[-1].createdAt')
  done
fi

echo "Total issues: $ISSUE_COUNT, Total PRs: $PR_COUNT"

大型代码库处理： 如果条目总数超过 50，必须处理所有条目。使用上面的分页代码获取每一个未关闭的问题和 PR。 不要抽样或将条目限制为 50 个——必须处理整个积压列表。

示例：如果有 500 个未关闭问题，就启动 500 个子 Agent。如果有 1000 个未关闭 PR，就启动 1000 个子 Agent。

注意： 后台任务系统会自动排队处理超出的任务。

---

阶段 2：分类

类型	判定方式
ISSUE_QUESTION	[Question]、[Discussion]、?、"how to" / "why does" / "is it possible"
ISSUE_BUG	[Bug]、Bug:、错误消息、堆栈跟踪、异常行为
ISSUE_FEATURE	[Feature]、[RFE]、[Enhancement]、Feature Request、Proposal
ISSUE_OTHER	其他所有情况
PR_BUGFIX	标题以 fix 开头，分支包含 fix//bugfix/，或标签为 bug
PR_OTHER	其他所有情况

---

阶段 3：启动子 Agent（单独调用工具）

重要：必须通过单独的 task_create 工具调用，逐个创建任务。绝不能批量创建或编写脚本。

对每个条目，按顺序执行以下步骤：

步骤 3.1：创建任务记录

task_create(
  subject="Triage: #{number} {title}",
  description="GitHub {issue|PR} triage analysis - {type}",
  metadata={"type": "{ISSUE_QUESTION|ISSUE_BUG|ISSUE_FEATURE|ISSUE_OTHER|PR_BUGFIX|PR_OTHER}", "number": {number}}
)

第 3.2 步：启动分析子 Agent（后台）

task(
  category="quick",
  run_in_background=true,
  load_skills=[],
  prompt=SUBAGENT_PROMPT
)

对子 Agent 的绝对要求：

• 仅进行分析——绝不在 GitHub 上执行操作（不发表评论、不合并、不关闭）
• 只读——仅使用工具读取代码和 GitHub 数据
• 仅撰写报告——通过 Write 工具将输出写入 {REPORT_DIR}/{issue|pr}-{number}.md
• 必须提供证据——每项声明都必须附有 GitHub 永久链接作为证明

For each item:
  1. task_create(subject="Triage: #{number} {title}")
  2. task(category="quick", run_in_background=true, load_skills=[], prompt=SUBAGENT_PROMPT)
  3. Store mapping: item_number -> { task_id, background_task_id }

---

子 Agent 提示词

通用前言（包含在所有子 Agent 提示词中）

CONTEXT:
- Repository: {REPO}
- Report directory: {REPORT_DIR}
- Current commit SHA: {COMMIT_SHA}

PERMALINK FORMAT:
Every factual claim MUST include a permalink: https://github.com/{REPO}/blob/{COMMIT_SHA}/{filepath}#L{start}-L{end}
No permalink = no claim. Mark unverifiable claims as [UNVERIFIED].
To get current SHA if needed: git rev-parse HEAD

ABSOLUTE RULES (violating ANY = critical failure):
- NEVER run gh issue comment, gh issue close, gh issue edit
- NEVER run gh pr comment, gh pr merge, gh pr review, gh pr edit
- NEVER run any gh command with -X POST, -X PUT, -X PATCH, -X DELETE
- NEVER run git checkout, git fetch, git pull, git switch, git worktree
- Your ONLY writable output: {REPORT_DIR}/{issue|pr}-{number}.md via the Write tool

---

ISSUE_QUESTION

You are analyzing issue #{number} for {REPO}.

ITEM:
- Issue #{number}: {title}
- Author: {author}
- Body: {body}
- Comments: {comments_summary}

TASK:
1. Understand the question.
2. Search the codebase (Grep, Read) for the answer.
3. For every finding, construct a permalink: https://github.com/{REPO}/blob/{COMMIT_SHA}/{path}#L{N}
4. Write report to {REPORT_DIR}/issue-{number}.md

REPORT FORMAT (write this as the file content):

# Issue #{number}: {title}
**Type:** Question | **Author:** {author} | **Created:** {createdAt}

## Question
[1-2 sentence summary]

## Findings
[Each finding with permalink proof. Example:]
- The config is parsed in [`src/config/loader.ts#L42-L58`](https://github.com/{REPO}/blob/{SHA}/src/config/loader.ts#L42-L58)

## Suggested Answer
[Draft answer with code references and permalinks]

## Confidence: [HIGH | MEDIUM | LOW]
[Reason. If LOW: what's missing]

## Recommended Action
[What maintainer should do]

---
REMEMBER: No permalink = no claim. Every code reference needs a permalink.

---

ISSUE_BUG

You are analyzing bug report #{number} for {REPO}.

ITEM:
- Issue #{number}: {title}
- Author: {author}
- Body: {body}
- Comments: {comments_summary}

TASK:
1. Understand: expected behavior, actual behavior, reproduction steps.
2. Search the codebase for relevant code. Trace the logic.
3. Determine verdict: CONFIRMED_BUG, NOT_A_BUG, ALREADY_FIXED, or UNCLEAR.
4. For ALREADY_FIXED: find the fixing commit using git log/git blame. Include the commit SHA and what changed.
5. For every finding, construct a permalink.
6. Write report to {REPORT_DIR}/issue-{number}.md

FINDING "ALREADY_FIXED" COMMITS:
- Use `git log --all --oneline -- {file}` to find recent changes to relevant files
- Use `git log --all --grep="fix" --grep="{keyword}" --all-match --oneline` to search commit messages
- Use `git blame {file}` to find who last changed the relevant lines
- Use `git show {commit_sha}` to verify the fix
- Construct commit permalink: https://github.com/{REPO}/commit/{fix_commit_sha}

REPORT FORMAT (write this as the file content):

# Issue #{number}: {title}
**Type:** Bug Report | **Author:** {author} | **Created:** {createdAt}

## Bug Summary
**Expected:** [what user expects]
**Actual:** [what actually happens]
**Reproduction:** [steps if provided]

## Verdict: [CONFIRMED_BUG | NOT_A_BUG | ALREADY_FIXED | UNCLEAR]

## Analysis

### Evidence
[Each piece of evidence with permalink. No permalink = mark [UNVERIFIED]]

### Root Cause (if CONFIRMED_BUG)
[Which file, which function, what goes wrong]
- Problematic code: [`{path}#L{N}`](permalink)

### Why Not A Bug (if NOT_A_BUG)
[Rigorous proof with permalinks that current behavior is correct]

### Fix Details (if ALREADY_FIXED)
- **Fixed in commit:** [`{short_sha}`](https://github.com/{REPO}/commit/{full_sha})
- **Fixed date:** {date}
- **What changed:** [description with diff permalink]
- **Fixed by:** {author}

### Blockers (if UNCLEAR)
[What prevents determination, what to investigate next]

## Severity: [LOW | MEDIUM | HIGH | CRITICAL]

## Affected Files
[List with permalinks]

## Suggested Fix (if CONFIRMED_BUG)
[Specific approach: "In {file}#L{N}, change X to Y because Z"]

## Recommended Action
[What maintainer should do]

---
CRITICAL: Claims without permalinks are worthless. If you cannot find evidence, say so explicitly rather than making unverified claims.

---

ISSUE_FEATURE

You are analyzing feature request #{number} for {REPO}.

ITEM:
- Issue #{number}: {title}
- Author: {author}
- Body: {body}
- Comments: {comments_summary}

TASK:
1. Understand the request.
2. Search codebase for existing (partial/full) implementations.
3. Assess feasibility.
4. Write report to {REPORT_DIR}/issue-{number}.md

REPORT FORMAT (write this as the file content):

# Issue #{number}: {title}
**Type:** Feature Request | **Author:** {author} | **Created:** {createdAt}

## Request Summary
[What the user wants]

## Existing Implementation: [YES_FULLY | YES_PARTIALLY | NO]
[If exists: where, with permalinks to the implementation]

## Feasibility: [EASY | MODERATE | HARD | ARCHITECTURAL_CHANGE]

## Relevant Files
[With permalinks]

## Implementation Notes
[Approach, pitfalls, dependencies]

## Recommended Action
[What maintainer should do]

---

ISSUE_OTHER

You are analyzing issue #{number} for {REPO}.

ITEM:
- Issue #{number}: {title}
- Author: {author}
- Body: {body}
- Comments: {comments_summary}

TASK: Assess and write report to {REPORT_DIR}/issue-{number}.md

REPORT FORMAT (write this as the file content):

# Issue #{number}: {title}
**Type:** [QUESTION | BUG | FEATURE | DISCUSSION | META | STALE]
**Author:** {author} | **Created:** {createdAt}

## Summary
[1-2 sentences]

## Needs Attention: [YES | NO]
## Suggested Label: [if any]
## Recommended Action: [what maintainer should do]

---

PR_BUGFIX

You are reviewing PR #{number} for {REPO}.

ITEM:
- PR #{number}: {title}
- Author: {author}
- Base: {baseRefName} <- Head: {headRefName}
- Draft: {isDraft} | Mergeable: {mergeable}
- Review: {reviewDecision} | CI: {statusCheckRollup_summary}
- Body: {body}

TASK:
1. Fetch PR details (READ-ONLY): gh pr view {number} --repo {REPO} --json files,reviews,comments,statusCheckRollup,reviewDecision
2. Read diff: gh api repos/{REPO}/pulls/{number}/files
3. Search codebase to verify fix correctness.
4. Write report to {REPORT_DIR}/pr-{number}.md

REPORT FORMAT (write this as the file content):

# PR #{number}: {title}
**Type:** Bugfix | **Author:** {author}
**Base:** {baseRefName} <- {headRefName} | **Draft:** {isDraft}

## Fix Summary
[What bug, how fixed - with permalinks to changed code]

## Code Review

### Correctness
[Is fix correct? Root cause addressed? Evidence with permalinks]

### Side Effects
[Risky changes, breaking changes - with permalinks if any]

### Code Quality
[Style, patterns, test coverage]

## Merge Readiness

| Check | Status |
|-------|--------|
| CI | [PASS / FAIL / PENDING] |
| Review | [APPROVED / CHANGES_REQUESTED / PENDING / NONE] |
| Mergeable | [YES / NO / CONFLICTED] |
| Draft | [YES / NO] |
| Correctness | [VERIFIED / CONCERNS / UNCLEAR] |
| Risk | [NONE / LOW / MEDIUM / HIGH] |

## Files Changed
[List with brief descriptions]

## Recommended Action: [MERGE | REQUEST_CHANGES | NEEDS_REVIEW | WAIT]
[Reasoning with evidence]

---
NEVER merge. NEVER comment. NEVER review. Write to file ONLY.

---

PR_OTHER

You are reviewing PR #{number} for {REPO}.

ITEM:
- PR #{number}: {title}
- Author: {author}
- Base: {baseRefName} <- Head: {headRefName}
- Draft: {isDraft} | Mergeable: {mergeable}
- Review: {reviewDecision} | CI: {statusCheckRollup_summary}
- Body: {body}

TASK:
1. Fetch PR details (READ-ONLY): gh pr view {number} --repo {REPO} --json files,reviews,comments,statusCheckRollup,reviewDecision
2. Read diff: gh api repos/{REPO}/pulls/{number}/files
3. Write report to {REPORT_DIR}/pr-{number}.md

REPORT FORMAT (write this as the file content):

# PR #{number}: {title}
**Type:** [FEATURE | REFACTOR | DOCS | CHORE | TEST | OTHER]
**Author:** {author}
**Base:** {baseRefName} <- {headRefName} | **Draft:** {isDraft}

## Summary
[2-3 sentences with permalinks to key changes]

## Status

| Check | Status |
|-------|--------|
| CI | [PASS / FAIL / PENDING] |
| Review | [APPROVED / CHANGES_REQUESTED / PENDING / NONE] |
| Mergeable | [YES / NO / CONFLICTED] |
| Risk | [LOW / MEDIUM / HIGH] |
| Alignment | [YES / NO / UNCLEAR] |

## Files Changed
[Count and key files]

## Blockers
[If any]

## Recommended Action: [MERGE | REQUEST_CHANGES | NEEDS_REVIEW | CLOSE | WAIT]
[Reasoning]

---
NEVER merge. NEVER comment. NEVER review. Write to file ONLY.

---

第 4 阶段：收集并更新

按任务轮询 background_output()。每项任务完成后：

1. 解析报告。
2. task_update(id=task_id, status="completed", description=REPORT_SUMMARY)
3. 立即向用户输出。

---

第 5 阶段：最终摘要

写入 {REPORT_DIR}/SUMMARY.md 并向用户展示：

# GitHub Triage Report - {REPO}

**Date:** {date} | **Commit:** {COMMIT_SHA}
**Items Processed:** {total}
**Report Directory:** {REPORT_DIR}

## Issues ({issue_count})
| Category | Count |
|----------|-------|
| Bug Confirmed | {n} |
| Bug Already Fixed | {n} |
| Not A Bug | {n} |
| Needs Investigation | {n} |
| Question Analyzed | {n} |
| Feature Assessed | {n} |
| Other | {n} |

## PRs ({pr_count})
| Category | Count |
|----------|-------|
| Bugfix Reviewed | {n} |
| Other PR Reviewed | {n} |

## Items Requiring Attention
[Each item: number, title, verdict, 1-line summary, link to report file]

## Report Files
[All generated files with paths]

---

反模式

违规行为	严重程度
进行任何 GitHub 修改（评论/关闭/合并/审核/添加标签/编辑）	严重
声明没有永久链接作为依据	严重
使用 quick 以外的类别	严重
将多个项目批量合并到一个任务中	严重
run_in_background=false	严重
对 PR 分支执行 git checkout	严重
在没有代码库证据的情况下猜测	高
未将报告写入 {REPORT_DIR}	高
在永久链接中使用分支名称而非提交 SHA	高