How about adding a tool for fetching individual comments by ID/anchor? #698

Describe the feature or problem you’d like to solve

Currently, github-mcp-server provides tools to fetch "all comments" from issues, pull requests, and discussions.

• get_issue_comments
• get_pull_request_comments
• get_discussion_comments

While this is useful, it can be inefficient when someone only need to access a specific comment.

So, I would like to request a new tool that can fetch individual comments directly using their anchor IDs, similar to how GitHub URLs work with anchors.

Proposed solution

This would be particularly useful for:

• Fetching specific comments without retrieving the entire comment thread
• Direct access to comments referenced by their URLs
• More efficient API usage when working with large comment threads
• Reduced API calls and bandwidth usage
• Faster access to specific comments
• Better support for comment-specific workflows
• Particularly valuable in restricted environments like GitHub Enterprise, where issue access may be limited

Example prompts or workflows (for tools/toolsets only)

The tool(s) should be able to fetch individual comments like these:

• Issue comment: 403 Forbidden for some users | Remote MCP #672 (comment)
• Pull request comment: feat: list_discussions sort by updatedAt & createdAt, return updatedAt and author #690 (comment)
• Discussion comment: What features do you most want to see? #545 (comment)