What is github-pr-review-mcp AGENTS.md?

A set of project instructions for building a GitHub pull-request review server. It explains where code belongs, how tools are added, and which coding rules to follow.

Use it when adding or changing review tools, GitHub API calls, data schemas, or static-analysis code in this TypeScript project.

It gives coding agents a shared guide to the project, reducing inconsistent changes and repeated questions about structure and style.

How jamesjfoong/github-pr-review-mcp configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to jamesjfoong/github-pr-review-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/jamesjfoong/github-pr-review-mcp/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/jamesjfoong/github-pr-review-mcp

Made for: Codex, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/jamesjfoong/github-pr-review-mcp/agents-md/github.svg)](https://agentmods.dev/instructions/jamesjfoong/github-pr-review-mcp/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/jamesjfoong/github-pr-review-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/jamesjfoong/github-pr-review-mcp/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/jamesjfoong/github-pr-review-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/jamesjfoong/github-pr-review-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 419 This file is loaded in full into every session.

When invoked 419 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00419	$0.00419
Opus 5.5	$0.00168	$0.00168
Sonnet 5.5	$0.00084	$0.00084
Haiku 4.5	$0.00042	$0.00042

Measured 2mo ago against content hash f3e78934e20f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

github-pr-review-mcp AGENTS.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

AGENTS.md · 59 lines

What it actually says

GitHub PR Review MCP - Agent Instructions

MCP server providing GitHub PR review capabilities. Built with TypeScript, FastMCP, and GitHub API.

Quick Reference

File	Purpose
`src/index.ts`	Register MCP tools
`src/github-service.ts`	GitHub API calls (use `this.octokit`)
`src/code-analyzer.ts`	Static analysis (pure functions)
`src/types.ts`	Zod schemas + TypeScript types

Core Rules

All GitHub API calls go through GitHubService
All tool parameters need Zod schemas in types.ts
Strong typing - avoid any, use explicit interface or type definitions
Use ? for optional - don't use | null | undefined, use ? instead
Run npm run validate before committing

Adding Tools (3 Steps)

Schema in types.ts
Service method in github-service.ts
Register in index.ts

Code Style

2 spaces, double quotes, semicolons
kebab-case files, PascalCase classes, camelCase functions
80 char max line length

Commands

npm run validate  # Type-check + lint + format
npm run dev       # Development mode
npm run build     # Production build

Error Handling

try {
  const result = await this.octokit.pulls.get({...});
  return result.data;
} catch (error) {
  const message = error instanceof Error ? error.message : String(error);
  console.error("Error fetching PR:", message);
  throw new Error(`Failed to fetch PR: ${message}`);
}

Documentation

README.md - Update tool table when adding tools
README.md - Full project documentation

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 59 lines · 419 tokens per session scan A f3e78934e20f

Subscribe to this mod's changes

github-pr-review-mcp AGENTS.md is an instructions file published in the GitHub repository jamesjfoong/github-pr-review-mcp (1 stars, last pushed 9mo ago), licensed MIT. It adds 419 tokens to every session, about $0.0017 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

github mcp pull-request review

github-pr-review-mcp AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
github-pr-review-mcp AGENTS.mdjamesjfoong/github-pr-review-mcp	Instructions file	1	9mo ago	MIT	A	419	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

github-pr-review-mcp: Instructions file for Codex