review-preplisted

# review-prep — Structural Pre-flight for PR Review Produce the reviewer's local structural context before analysis agents run. **This output is local only — never include it in a GitHub review.** ## Arguments `$ARGUMENTS` — `<pr-number-or-repo#N> [repo-path]` - First arg: PR number (e.g. `123`) or `owner/repo#N` (e.g. `myorg/myrepo#123`) - Second arg (optional): local path to the repo checkout ## What To Do ### Step 1: Get changed files ```bash # Parse PR ref if echo "$PR_ARG" | grep -q '#'; then REPO=$(echo "$PR_ARG" | cut -d'#' -f1) PR_NUM=$(echo "$PR_ARG" | cut -d'#' -f2) CHANGED_FILES=$(gh pr diff "$PR_NUM" --repo "$REPO" --name-only 2>/dev/null) else PR_NUM="$PR_ARG" CHANGED_FILES=$(gh pr diff "$PR_NUM" --name-only 2>/dev/null) fi ``` If `$CHANGED_FILES` is empty, report: ``` status: unavailable reason: could not fetch PR diff — check gh auth and PR number ``` Stop here. ### Step 2: Determine scope directory Find the lowest common ancestor of changed `.go` files: ```bash GO_FILES=$(echo "$CHANGED_FILES" | grep '\.go$') if [ -z "$GO_FILES" ]; then echo "status: unavailable" echo "reason: no Go files changed in this PR — review-prep targets Go codebases" exit 0 fi SCOPE_DIR=$(echo "$GO_FILES" | xargs -I{} dirname {} | sort -u | \ python3 -c " import sys dirs = [d.strip() for d in sys.stdin.readlines()] if not dirs: exit(1) common = dirs[0] for d in dirs[1:]: while not d.startswith(common): common = '/'.join(common.split('/')[:-1])