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'

Parameters

line : Line number in the file (for multi-line, the last line)
side : RIGHT for added/modified lines (+), LEFT for deleted lines (-)
start_line /start_side : For multi-line comments, the first line of the range

Best Practices

Use suggestion blocks (three backticks + "suggestion") for simple fixes that maintainers can apply with one click

&#x3C;suggested code here>

Note: Preserve original indentation exactly in suggestion blocks

For repetitive issues, leave one representative comment instead of flagging every instance

For bugs, explain the potential problem and suggested fix clearly