/update

<pr_info> !${CLAUDE_PLUGIN_ROOT}/scripts/git/gh-pr-info.sh 2>&1 </pr_info>

<stack_context> !${CLAUDE_PLUGIN_ROOT}/scripts/git/machete-context.sh 2>&1 </stack_context>

<objective>

Update PR title/body from commits. Update machete annotations if stacked.

</objective> <workflow>

Step 1: Validate PR

If no PR found → exit.

Step 2: Gather Context

BASE=$(gh pr view --json baseRefName -q '.baseRefName')
git log origin/${BASE}..HEAD --pretty=format:"%s" | head -20
ls .claude/plans/*.md 2>/dev/null

Step 3: Generate Title

• Single commit → use commit message
• Multiple commits → type(scope): summary
• Mixed types → use most significant (feat > fix > refactor > docs > chore)

Step 4: Generate Body

Select template based on commit type. Sources:

• Summary: From commit messages
• Why: From plan file or commit bodies
• What changed: From git diff --stat

Add visuals (ASCII/Mermaid) when helpful for reviewer.

Step 5: Update PR

PR_NUM=$(gh pr view --json number -q '.number')
gh pr edit $PR_NUM --title "type(scope): description"
gh pr edit $PR_NUM --body "..."

Step 6: Update Machete (if stacked)

If <stack_context> shows "is in machete layout":

if git machete is-managed "$(git branch --show-current)" 2>/dev/null; then
  git config machete.github.prDescriptionIntroStyle full
  git machete github anno-prs
  git machete github update-pr-descriptions --related
fi

</workflow>

<success_criteria>

• PR title reflects commit type and scope
• PR body generated from template
• Plan context included (if exists)
• Machete annotations updated (if stacked)

</success_criteria>