Add `update_issue_comment` tool

[umairidris]

Describe the feature or problem you’d like to solve

Currently there is no possible way to update an issue comment using the GitHub MCP server. This is only possible using the GitHub API directly or the gh tool. This makes it impossible for prompts that wish to interact with GitHub solely through MCP to update an issue comment.

Proposed solution

update_issue_comment

• comment_id: ID of the comment (string, required)
• issue_number: Issue number to comment on (number, required)
• owner: Repository owner (string, required)
• repo: Repository name (string, required)
• body: Comment content (string, required)

Example prompts or workflows (for tools/toolsets only)

update_issue_comment(
  comment_id: 111
  issue_number: 222
  owner: example-owner
  repo: example-repo
  body: "new body to replace current body with"
)

[Vidit-Ostwal]

Hi maintainers,
Would love to give this one a try!
Please assign this to me.

[robs5700-png]

Ok

[zhoufenqin]

@Vidit-Ostwal I see the PR is marked as draft, will the feature be added into GitHub MCP server later?

[Vidit-Ostwal]

#1087, this is open for review right now.