Add Review Comment

Adds a review comment to a specific line in a GitHub pull request.

Step 1: Locate the line to comment on

Use the fetch-diff skill (optionally piped through grep) to locate the line to comment on.

Step 2: Post the comment

Single-line comment:

gh api repos/<owner>/<repo>/pulls/<pr_number>/comments \
  # Body must end with "🤖 Generated with Claude" on a separate line
  -f body=<comment> \
  -f path=<file_path> \
  -F line=<line_number> \
  -f side=<side> \
  -f commit_id="$(gh pr view <pr_number> --repo <owner>/<repo> --json headRefOid -q .headRefOid)" \
  --jq '.html_url'

Multi-line comment:

gh api repos/<owner>/<repo>/pulls/<pr_number>/comments \
  # Body must end with "🤖 Generated with Claude" on a separate line
  -f body=<comment> \
  -f path=<file_path> \
  -F start_line=<first_line> \
  -f start_side=<side> \
  -F line=<last_line> \
  -f side=<side> \
  -f commit_id="$(gh pr view <pr_number> --repo <owner>/<repo> --json headRefOid -q .headRefOid)" \
  --jq '.html_url'