GitHub, GitLab & PR Code Review MCP Servers: Grok Bot Template Blueprint
Five verified Grok Bot templates from the LightState catalog for pull request triage, secret and dependency checks, tech-debt cleanup and MCP auditing, and how to wire them into one review desk.
Grok Bot templates are one-click share links that bundle a persona, instructions and connectors. For code review, five catalog templates have live, verified share links: Review Brief (PR risk and reviewer triage), Dependency & Secret Audit (pre-merge CVE and credential checks), RepoBeagle (dead code and stale branches), MCP Expert (audits MCP servers you are about to connect) and Master (routes work across specialists). This blueprint shows what each does and how to chain them.
Verified Capabilities Benchmarked in This Guide
Inspect Live JSON Feed ↗Review Brief — 2-Minute GitHub Pull Request Risk & Reviewer Triage
Summarizes large GitHub Pull Requests into architectural intent, breaking-change risk, test coverage delta, and recommended code-owner reviewers in under t
Dependency CVE & Leaked Credential Pre-Merge Gatekeeper
Scans every commit and lockfile diff for accidentally staged API keys, high-severity npm/PyPI/Cargo CVEs, and typosquatted packages.
RepoBeagle — Dead Code, Stale Branch & Tech-Debt Hound
Sniffs out unused TypeScript exports, orphaned feature flags, stale Git branches, and duplicated utility functions—opening clean cleanup PRs.
MCP Expert — Protocol Spec Auditor & Server Security Grader
Audits any MCP server against the official Streamable HTTP & JSON-RPC 2.0 specification, grading schema clarity, error handling, and auth scoping.
Master Orchestrator — Multi-Specialist Task Router & SLA Tracker
Lean executive orchestrator that decomposes complex multi-step objectives, dispatches sub-tasks to specialist bots, and verifies deliverables before report
GitHub Official MCP — Repositories, Pull Requests, Actions & Code Search
Official GitHub MCP server for searching repositories, inspecting PR diffs and review comments, triaging issues, and reading GitHub Actions workflow runs.
1. The five verified templates
We opened every share link on 25 Oct 2026 and kept only templates whose link resolves to a live template page. Pulse Scores are catalog values.
| Template | Pulse | What it does | Connectors listed | Safety level |
|---|---|---|---|---|
| Review Brief (/t/review-brief) | 86 | Summarises large PRs into intent, breaking-change risk, test coverage delta and suggested reviewers | GitHub MCP, Linear MCP, Slack | Read-Only / Ask-First |
| Dependency CVE & Leaked Credential Gatekeeper (/t/dependency-secret-audit) | 85 | Scans commit and lockfile diffs for staged keys, high-severity CVEs and typosquatted packages | GitHub MCP, LeakPatrol MCP | Read-Only / Ask-First |
| RepoBeagle (/t/repobeagle) | 89 | Finds unused exports, orphaned flags, stale branches and duplicated utilities, then proposes cleanup PRs | GitHub MCP, Git MCP, Linear MCP | Read-Only / Ask-First |
| MCP Expert (/t/mcp-expert) | 89 | Audits an MCP server against the Streamable HTTP and JSON-RPC 2.0 spec, grading schemas, errors and auth scoping | GitHub, LocalCan MCP, MCP Metrics | Read-Only / Ask-First |
| Master Orchestrator (/t/master-orchestrator) | 81 | Breaks a goal into sub-tasks, dispatches them to specialist bots and verifies deliverables | Linear, Slack, Notion, GitHub | Read-Only / Ask-First |
2. Blueprint: a three-stage PR review desk
Chain the templates by stage rather than running all of them on every PR. Each stage only needs read access to GitHub; nothing here should merge or push.
- Stage 1, on PR open: Review Brief produces the risk summary and reviewer suggestions so a human knows how much attention the PR needs.
- Stage 2, before merge: Dependency & Secret Audit checks the diff and lockfile changes. Treat any credential finding as blocking.
- Stage 3, weekly: RepoBeagle sweeps the default branch for debt that slipped through, and opens cleanup PRs for a human to review.
- Optional: Master Orchestrator runs the weekly cadence and collects outputs into one Slack or Linear update.
3. Connect the GitHub server safely first
Every template above lists GitHub as a connector. Before launching them, connect GitHub through the official server with the narrowest access that works. The read-only pull_requests toolset is enough for stages 1 and 2.
4. Audit new MCP servers before the desk uses them
When you add a reviewer service or context server to the desk, run MCP Expert against it first. It grades the server's tool schemas, error handling and auth scoping, which is exactly where weak servers fail. Pair it with the MCP security checklist guide on this blog.
5. Customising a template without breaking it
Templates are starting points. The safest edits are narrowing scope (one repo, one label, one team), changing the output channel, and adding a stop-and-ask step before any write. Avoid adding write connectors to a template marked Read-Only / Ask-First unless you also add an explicit approval step.
6. Built a better review template?
Submit your template's share link and claim it with your X handle so builders can find it under Grok Templates. Templates with live links, clear connectors and an honest safety level are the ones we feature in guides like this.
Frequently Asked Questions
What is a Grok Bot template?
A shareable x.ai/bot link that bundles a bot's instructions, schedule and required connectors so someone else can launch the same bot in one click.
Which Grok Bot template is best for pull request review?
Review Brief is the most direct fit: it summarises a PR's intent, breaking-change risk and test coverage, and suggests reviewers. Pair it with Dependency & Secret Audit as a pre-merge gate.
Do these templates merge or push code?
No. All five are listed as Read-Only / Ask-First. RepoBeagle proposes cleanup PRs, which a human should review before merging.
Why are only five templates featured?
We only feature templates whose share links resolved to a live template page when we checked on 25 Oct 2026. Other review-related catalog listings are being re-verified.