AI Agent Skills 中文导航平台

Create or update one GitHub pull request for the current branch. Treat the PR as durable knowledge transfer: explain the changed behavior and its reason, not a file inventory. Follow explicit user instructions first, then applicable repository guidance, before the defaults below. Write the title in English. Write the body in the language the user explicitly requests, or otherwise in the language of the user's request; this skill does not impose a fixed body language. Write the user-facing response in the user's language.

1. Inspect and Guard

Read applicable repository guidance and any pull request template before composing content.
Inspect the current branch and worktree:
bash
```
git branch --show-current
git status --short --branch
git symbolic-ref --quiet --short refs/remotes/origin/HEAD
```
Keep the symbolic-ref result only as the fallback base for a new PR. Derive its branch name by removing only the leading
```
origin/
```
; do not select the comparison ref until the PR lookup below is complete.
Refresh remote refs with
```
git fetch --prune origin
```
. If the fetch fails, show the error and stop; do not make publish decisions from stale remote state.
Find an open PR for the exact head branch:
bash
```
gh pr list --head <branch> --state open --limit 1 \
  --json number,title,url,body,isDraft,baseRefName,headRefName
```
If the command fails, show the error and stop. Save the result for later use; an empty array means create and one result means update.
Choose the effective base only after that lookup:
- For an existing PR, use its
```
baseRefName
```
  . If the user explicitly requested a different base, stop and clarify instead of comparing against either one silently.
- For a new PR, use the user-requested base when supplied; otherwise use the remote default branch. If neither is available, stop and ask for the base.
Normalize a supplied
```
origin/<base>
```
by removing only the leading
```
origin/
```
, then set
```
<comparison-ref>
```
to
```
origin/<base>
```
. Verify that ref exists after the fetch. Stop if the current branch equals the effective base or if
```
git log <comparison-ref>..HEAD --oneline
```
contains no commits.
If tracked or untracked changes are present, tell the user they are not part of the PR and ask whether to commit them first. Continue only after the user commits them or explicitly chooses to exclude them.
Determine the upstream with:
bash
```
git rev-parse --abbrev-ref --symbolic-full-name '@{upstream}'
```
- With no upstream, run
```
git push -u origin <branch>
```
  .
- With an upstream, compute
```
git rev-list --left-right --count <upstream>...HEAD
```
  . If the left count is nonzero, stop and report that the local branch must be synchronized; do not merge, rebase, or force-push implicitly. If only the right count is nonzero, run
```
git push
```
  .
- If a push fails, show the error and stop. Never retry with
```
--force
```
  .

2. Build the PR Model

Using the saved PR lookup and the effective

<comparison-ref>

selected above, inspect every PR commit and the complete PR diff:

bash

git log <comparison-ref>..HEAD --format='%h%x09%s%n%b'
git diff --stat <comparison-ref>...HEAD
git diff <comparison-ref>...HEAD

Treat these outputs as the exclusive PR change set when selecting body depth, composing claims, checking change coverage, and reporting commit and file counts. Throughout the remaining steps, “branch commits” means exactly the commits returned by

git log <comparison-ref>..HEAD

. A commit reachable from

<comparison-ref>

is base history, not a PR change, even when it is absent from the remote default branch; do not include its behavior in the body.

Use commit history as evidence, not as the narrative structure. Synthesize the final behavior across commits, ignoring intermediate states that the complete PR diff supersedes. Before drafting, separate each material workflow or component and map its evidenced actor, trigger, input and time scope, state or output, downstream handoffs and failure behavior, and rollout or migration ordering, as applicable. Check internally that every material branch change is covered, but do not expose that coverage as a chronological commit list.

From the retained evidence, identify the primary before-and-after behavior. Include a reason, semantic explanation, impact, constraint, tradeoff, or risk only when the evidence supports that exact connection; omit it rather than infer it from related changes. Use the saved empty lookup result to create, or its single result to update.

3. Compose Grounded Content

Title for a new PR

Start with a concise imperative English verb and name the core behavior.
Keep the title at most 40 characters, excluding a ticket prefix.
If the branch contains an identifier matching letters or alphanumerics followed by a hyphen and digits, uppercase it and prepend it in brackets. For example,
```
feature/proj-42-fix-layout
```
becomes
```
[PROJ-42] Fix layout
```
.
Do not change the title of an existing PR.

Body depth

Count commits and changed files, then use the more detailed level when the two measures disagree:

Level	Threshold	Generated sections
Simple	1-2 commits and at most 3 files	Summary, Changes
Standard	3-10 commits or 4-10 files	Summary, Key Changes, Validation
Complex	11+ commits or 11+ files	Summary, themed Key Changes, Validation, Review Notes

Keep the body proportional even when a repository template adds required sections. Apply these content rules:

Lead with the behavioral before-and-after model and why it matters.
State the single core intuition that explains most of the PR, then group supporting changes by behavior or reviewer concern. When material workflows do not share one evidenced reason or outcome, keep their before-and-after explanations distinct instead of forcing an umbrella narrative. Do not organize the body by commit order, narrate files, or restate every diff hunk.
Omit secondary and mechanical edits from
```
Summary
```
and
```
Key Changes
```
unless they alter the mental model or require reviewer action. Report test commands and results in
```
Validation
```
instead of listing routine test implementation as a key change.
Use one minimal toy example when concrete input, state, or output makes a non-obvious rule faster to understand. For example:
```
Requests r1, r1, r2 used to create three jobs; they now create two because request ID defines identity.
```
Keep the behavior faithful to the diff, and do not force an example when prose is clearer.
Omit commit hashes and a commit-by-commit log unless the user or a repository template explicitly requires them.
Report validation only when supported by evidence. Attribute results reported only in commit history, and do not present changed tests or static inspection as passing execution results. Name any material runtime, integration, deployment, migration, or external-service boundaries the reported checks did not exercise. When a required validation section has no evidence of executed checks, state the language-equivalent of
```
Not run
```
; never guess.
Include migration notes, risks, or reviewer guidance only when the diff supports them.

Wrap only generated content in these exact ownership markers:

markdown

<!-- pr-skill:start -->
<generated sections>
<!-- pr-skill:end -->

When updating:

If both markers exist once and in order, replace only the marked block and preserve all text outside it byte-for-byte.
If the body has no markers, preserve the entire existing body byte-for-byte and append one marked generated block.
If markers are malformed, duplicated, or out of order, stop and ask the user how to proceed. Do not risk deleting authored content.

Add

--draft

when creating if the user requested a draft or the branch starts with

draft/

wip/

. Updating the body must preserve the existing draft state.

4. Verify, Execute, and Confirm

Before any

gh pr create

gh pr edit

, verify that:

The create title satisfies the language, length, verb, and ticket rules.
The body matches the chosen depth, leads with the core intuition, and covers every material branch change without relying on a chronological commit list.
Every factual claim is grounded in the inspected diff, history, guidance, or template.
Existing content outside the ownership markers is unchanged.

Pass the body through standard input so shell interpolation cannot alter it:

bash

gh pr create --title "<title>" --assignee @me --base "<base>" \
  --head "<branch>" [--draft] --body-file - <<'EOF'
<body>
EOF

gh pr edit "<number>" --body-file - <<'EOF'
<body>
EOF

Do not include the bracketed optional flag literally; either add

--draft

or omit it. After success, run

gh pr view <number-or-url> --json number,title,url,body,isDraft,commits,files

and verify the published title, body, draft state, commit count, and file count. If creation, update, or verification fails, show the error and stop without claiming success.

Report the PR number and title, URL, created or updated status, draft state, commit count, and changed-file count.

pr

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