Create Pr

Create Pull Request

Create a GitHub Pull Request using the gh CLI. Analyze branch changes, detect PR templates, and generate structured PR descriptions.

If $ARGUMENTS contains draft or --draft, create the PR as a draft. Otherwise, create a regular (open) PR.

Workflow

Step 1: Gather Context

Run the following commands in parallel:

1. git status - Check for uncommitted changes (never use -uall flag)
2. git branch --show-current - Get current branch name
3. git log --oneline -20 - Get recent commit history for message style reference

If there are uncommitted changes, warn the user and ask whether to proceed or commit first.

Step 2: Identify Base Branch and Changes

Determine the base branch for the PR:

1. Detect the default branch: gh repo view --json defaultBranchRef --jq '.defaultBranchRef.name'
2. Use the default branch as the base unless the user specifies otherwise

Gather the full diff and commit log from the base branch:

1. git log --oneline <base-branch>..HEAD - All commits to include in the PR
2. git diff <base-branch>...HEAD - Full diff of changes
3. git diff <base-branch>...HEAD --stat - Summary statistics

If there are no commits ahead of the base branch, inform the user and stop.

Step 3: Detect PR Templates

Search for PR templates in the repository in this order:

1. .github/pull_request_template.md
2. .github/PULL_REQUEST_TEMPLATE.md
3. docs/pull_request_template.md
4. pull_request_template.md
5. .github/PULL_REQUEST_TEMPLATE/ directory (if multiple templates exist)

If a template is found:

• Read the template content
• Use it as the structure for the PR body
• Fill in each section based on the actual changes

When multiple templates exist in .github/PULL_REQUEST_TEMPLATE/, list them and ask the user which to use.

If no template is found, use the default format described in Step 4.

Step 4: Compose PR Title and Body

Title

• Keep under 70 characters
• Summarize the primary change concisely
• Follow the commit message style observed in the repository (e.g., conventional commits if the repo uses them)

Body

The body exists to give reviewers what the diff view cannot. Reviewers will read the diff — the body's job is to prepare them for it, not to duplicate it.

Write only content that is invisible in the diff:

• Why: the motivation or problem being solved. This is the most important part — it cannot be recovered from the code. Link related issues if any.
• What (high level): the approach and key design decisions, described in units of intent, not files. Note alternatives considered or trade-offs only when non-obvious.
• Impact: breaking changes, behavior changes, or migration steps — easy to miss when reading a diff.
• Verification: how the changes were tested.

Never include:

• File-by-file or commit-by-commit enumeration of changes — the diff view and commit list already show this better
• Prose restatement of the code ("changed X to Y in file Z")
• Boilerplate sections with nothing to say ("N/A", "None")

Match length to the change: a small fix needs 2-3 sentences total, not a full sectioned document. When unsure, shorter is better — a body the reviewer actually reads beats a thorough one they skip.

If a PR template was found in Step 3, populate its sections following the same principles.

If no template was found, use this default format, omitting any section that would be empty:

## Why
<Motivation: the problem this solves and why it matters. Link issues.>

## What
<High-level approach and key design decisions. Not a file list.>

## Test Plan
<How the changes were verified>

Always append the following footer:

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Step 5: Push and Create PR

1. Ensure the branch is pushed to the remote:

   • Check if remote tracking exists: git rev-parse --abbrev-ref @{upstream} 2>/dev/null
   • If not tracked, push with: git push -u origin <current-branch>
   • If tracked but local is ahead, push with: git push

2. Create the PR using gh pr create:

gh pr create \
  --title "PR title" \
  --body "$(cat <<'EOF'
PR body content here
EOF
)" \
  [--draft]  # Include if draft mode requested

Add --draft flag when draft mode is requested.

3. Run gh pr view --json url,number,title,isDraft to confirm creation and report the PR URL, number, title, and status (draft/open) to the user.

Error Handling

• No gh CLI: Inform the user to install it
• Not authenticated: Guide the user to run gh auth login
• No remote: Inform the user that no remote is configured
• Push failure: Inform the user about potential conflicts

Important Notes

• Never force-push unless the user explicitly requests it
• Always use cat <<'EOF' (single-quoted) for the body HEREDOC to prevent variable expansion
• Respect the repository's existing PR conventions when composing title and body