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Critic-MCP: Instructions file for Codex

AGENTS.md

Critic-MCP AGENTS.md is an instructions file for Codex, OpenCode from layermedya/Critic-MCP. It costs 808 tokens per session, scanned A, original, MIT.

Project instructions for Critic-MCP, an MCP server that acts as a second reviewer for code written by other AI coding assistants. It exposes one read-only review tool and covers its Node.js, TypeScript, model, configuration, and testing rules.

In plain words
What is it for?
Use it when developing or maintaining Critic-MCP and its `review_code` tool.
Why use it?
It keeps code review focused on inspection, with no permission to write files, while defining how inputs, model access, errors, and large code samples should be handled.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions OpenCode.

This is layermedya/Critic-MCP's own configuration. It tells Codex and OpenCode how to work on Critic-MCP itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Critic-MCP configures →

not rated 0repo 2mo ago A scan 808 tokens original MIT
View source ↗ layermedya/Critic-MCP
Reuse

Borrowing it

Nothing to install: this file belongs to layermedya/Critic-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/layermedya/Critic-MCP/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/layermedya/Critic-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.

agentmods badge for Critic-MCP AGENTS.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/layermedya/critic-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/layermedya/critic-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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/layermedya/critic-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/layermedya/critic-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 808 This file is loaded in full into every session.
When invoked 808 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00808 $0.00808
Opus 5.5 $0.00323 $0.00323
Sonnet 5.5 $0.00162 $0.00162
Haiku 4.5 $0.00081 $0.00081

Measured 2mo ago against content hash 212fc1efd3d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Critic-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 · 43 lines

How it starts

The opening of the file, as written. The whole thing — 43 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Critic-MCP — Proje Anayasası

Amaç

Diğer AI kodlama asistanlarının (Cursor, OpenCode vb.) yazdığı kodu salt okunur olarak denetleyen, "İkinci Göz / Eleştirmen" rolünde açık kaynak bir MCP sunucusu. Tek tool: review_code. Kesinlikle dosyaya yazma yetkisi yoktur.

Teknoloji Yığını

  • Node.js >= 20 (ESM, "type": "module") ve TypeScript (NodeNext çözünürlük)
  • @modelcontextprotocol/sdk — tek tool: review_code (stdio transport)
  • zod — girdi şema doğrulaması (sonraki aşamada handler'a eklenecek)
  • LLM: @google/genai (Gemini) veya openai paketleri (OpenAI / DeepSeek uyumlu)
  • Yetkilendirme: critic-mcp auth CLI akışı → ~/.critic-mcp.json (0600); env anahtarları dosyaya önceliklidir, asla hardcode değil

Klasör Yapısı

src/index.ts   -> MCP sunucu (tools/list + tools/call), zod doğrulama, hata yönetimi, `auth` argv yönlendirmesi
src/schema.ts  -> review_code zod girdi şeması (tek geçerli kaynak)
src/prompt.ts  -> Kritic sistem promptu ve kullanıcı promptu birleştirici
src/llm.ts     -> LLM istemci katmanı (gemini | openai | deepseek), zaman aşımı koruması
src/chunker.ts -> Satır-sonu bazlı kod parçalama (chunking) — varsayılan sınır 30.000 karakter
src/config.ts  -> Global yapılandırma (~/.critic-mcp.json) + kimlik çözümleme (env → dosya)
src/cli.ts     -> İnteraktif yetkilendirme akışı (`critic-mcp auth`)
tests/         -> Vitest birim testleri (validation.test.ts, llm.test.ts, chunking.test.ts, config.test.ts, cli.test.ts)
dist/          -> Derleme çıktısı (git'e girmiyor)
examples/      -> Manuel test: bad_code.js (SQLi+XSS+N+1) ve intent.txt
.env.example   -> Çevresel değişken şablonu (tümü isteğe bağlı)

Standartlar

  • Değişken/fonksiyon/dosya adları İngilizce; açıklama ve yorumlar Türkçe.
  • Yalnızca istenen işlevi yaz (YAGNI); gereksiz soyutlamadan kaçın.
  • Read-only prensibi: Sunucu hiçbir dosyaya yazamaz, sadece string rapor döner. Tek istisna: auth komutunun ~/.critic-mcp.json'a yazması (0600 izni, MCP sunucusu başlatılmadan).
  • LLM çıktısı standart metin olarak MCP istemcisine geri döner.
  • Her derleme/değişiklik öncesi npm run typecheck çalıştırılmalıdır.

Read the full file on GitHub · 43 lines

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.

  1. 2mo ago First seen · 43 lines · 808 tokens per session scan A 212fc1efd3d9

Subscribe to this mod's changes

Critic-MCP AGENTS.md is an instructions file published in the GitHub repository layermedya/Critic-MCP (0 stars, last pushed 2mo ago), licensed MIT. It adds 808 tokens to every session, about $0.0032 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.

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