Explore PR

Name: Git Explore Pr
Rating: 92
Author: ahoym

Pull down a PR to understand its changes, get context, and ask questions.

Usage

•/explore-pr <pr-number> - Explore PR by number
•/explore-pr <pr-url> - Explore PR by URL
•/explore-pr - Explore PR for current branch (if one exists)

Instructions

•
Parse PR identifier from $ARGUMENTS:
- •If empty, use current branch's PR
- •If numeric, treat as PR number
- •If URL (contains github.com), extract PR number from URL

•

Fetch PR metadata (run in parallel):

•Get PR details:

bash

gh pr view <pr> --json number,title,body,author,headRefName,baseRefName,state,createdAt,updatedAt

•Get files changed:

bash

gh pr view <pr> --json files --jq '.files[].path'

•Get commits:

bash

gh pr view <pr> --json commits --jq '.commits[] | {sha: .oid[0:7], message: .messageHeadline}'

•

Display PR summary (store as PR_CONTEXT):

code

PR #<number>: <title>
Author: <author>
Branch: <headRefName> → <baseRefName>
Status: <state>
Created: <createdAt>

## Description
<body>

## Files Changed (<count>)
- <file1>
- <file2>
...

## Commits (<count>)
- <sha1>: <message1>
- <sha2>: <message2>
...

•
Fetch the diff (store as PR_DIFF):
bash
```
gh pr diff <pr>
```
If diff is large (>500 lines), summarize by file:
- •Show first 50 lines of each file's diff
- •Note "... and X more lines" for truncated sections
•
Offer to checkout the PR branch (optional): Ask: "Would you like me to checkout this branch locally? (y/n)"

If yes:
bash
```
gh pr checkout <pr>
```

•

Enter Q&A mode: Present to user:

code

I now have full context on PR #<number>. You can ask me:
- What does this PR change?
- Why was <file> modified?
- Are there any potential issues?
- How does <function/class> work now?
- What's the testing strategy?

Ask any questions about this PR, or say "done" to exit.

•
Answer questions using PR_CONTEXT and PR_DIFF:
- •Reference specific files and line numbers when answering
- •Read additional files if needed for context
- •If a question requires understanding code not in the diff, use Read tool

Example Output

code

PR #42: Add user authentication
Author: @developer
Branch: feature/auth → main
Status: OPEN
Created: 2024-01-15

## Description
This PR adds JWT-based authentication with:
- Login/logout endpoints
- Token refresh mechanism
- Protected route middleware

## Files Changed (5)
- src/auth/jwt.py
- src/auth/middleware.py
- src/routes/auth.py
- tests/auth/test_jwt.py
- tests/auth/test_middleware.py

## Commits (3)
- abc1234: Add JWT token generation
- def5678: Add auth middleware
- ghi9012: Add tests

---

I now have full context on PR #42. You can ask me:
- What does this PR change?
- Why was <file> modified?
- Are there any potential issues?
- How does <function/class> work now?
- What's the testing strategy?

Ask any questions about this PR, or say "done" to exit.

Related Skills

After exploring a PR, you may want to:

Next Step	Skill
Address review comments	`/git-address-pr-review`
Check merge status	`/git-pr-status`
Split a large PR	`/git-split-pr`
Monitor for new comments	`/git-monitor-pr-comments`
Preview merge conflicts	`/git-preview-conflicts`

Important Notes

•This skill is for understanding PRs, not modifying them
•For large PRs with many files, focus on the most significant changes first
•If the diff is too large to process, offer to focus on specific files