René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Track: reaction tools for issues and pull requests (#2732)","articleBody":"## Tracking issue\n\nTracking the work in #2732 — \"Add reaction tools for issues and pull requests\" (by @timrogers, co-developed with Copilot).\n\n### Scope of #2732\n- `add_issue_reaction` — react to an issue\n- `add_issue_comment_reaction` — react to an issue comment\n- `add_pull_request_review_comment_reaction` — react to a PR review comment\n\n### Why this tracking issue exists\nValidating that reactions can be driven end-to-end through the **consolidated** issue tooling (`add_issue_comment` for issue/PR reactions, `add_reply_to_pull_request_comment` for PR review comment reactions).\n\n### Test performed via MCP (results)\n- [x] Reacted to PR #2732 itself (:rocket:) via consolidated `add_issue_comment` — **clean**\n- [x] Opened this tracking issue — **clean**\n- [x] Reacted to this issue (:heart:) via consolidated `add_issue_comment` — **clean**\n- [x] Commented on this issue via consolidated `add_issue_comment` — **clean**\n- [ ] React to that comment — **not possible with the consolidated toolset** ❌\n\n### Finding\nThe consolidated toolset reacts cleanly to **issues / PRs** (`add_issue_comment`) and to **PR review comments** (`add_reply_to_pull_request_comment`). However, there is **no** consolidated tool to react to a standalone **issue comment** by id. Attempting to route an issue-comment id through the PR-review-comment reaction tool hits `POST /repos/.../pulls/comments/{id}/reactions` and fails (`403`, wrong namespace).\n\nThis is exactly the gap `add_issue_comment_reaction` in #2732 closes. 👍 for shipping it.\n\n_Filed automatically as part of a reactions smoke test._","author":{"url":"https://github.com/SamMorrowDrums","@type":"Person","name":"SamMorrowDrums"},"datePublished":"2026-06-23T12:53:34.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/2757/github-mcp-server/issues/2757"}