Add Review Comment

Posts one inline review comment to a specific line in a GitHub pull request using the GitHub REST API via the gh CLI.

When to Use

• You have a single finding and want to anchor a comment to the exact line.
• You need a multi-line comment spanning a range of changed lines.
• You want to attach a one-click suggestion block to a PR line.

For reviewing a whole PR and emitting a full set of comments, use the pr-review skill instead.

Step 1: Locate the line to comment on

Invoke the fetch-diff skill to fetch the PR diff with line numbers, then identify the path, line, and side to anchor to: