atelier-mcp: Instructions file for Codex

AGENTS.md

atelier-mcp AGENTS.md is an instructions file for Codex, OpenCode from anshrajore/atelier-mcp. It costs 488 tokens per session, scanned A, a copy of atelier-mcp copilot-instructions.md, MIT.

An AGENTS.md instruction file for coding agents that applies Atelier’s interface and backend quality rules. AGENTS.md is a project file that tells an agent how to work in that codebase.

In plain words
What is it for?
Use it in an Atelier-based project to require checks for layout, typography, contrast, credentials, backend architecture, and framework-specific presets.
Why use it?
It puts the project’s quality requirements in a place the agent can read while generating or changing code.

Instructions file for CodexOpenCode

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

This is anshrajore/atelier-mcp's own configuration. It tells Codex and OpenCode how to work on atelier-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 atelier-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to anshrajore/atelier-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/anshrajore/atelier-mcp/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/anshrajore/atelier-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 atelier-mcp AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/anshrajore/atelier-mcp/agents-md.svg)](https://agentmods.dev/instructions/anshrajore/atelier-mcp/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/anshrajore/atelier-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/anshrajore/atelier-mcp/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 488 This file is loaded in full into every session.
When invoked 488 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin 97% copy Near-identical to another mod 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 $0.00488 $0.00488
Opus 5 $0.00244 $0.00244
Sonnet 5 $0.00098 $0.00098
Haiku 4.5 $0.00049 $0.00049

Measured 5d ago against content hash 8ed26a5a514e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

atelier-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 5d 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.

Origin

This is a copy

97% identical to atelier-mcp copilot-instructions.md — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

AGENTS.md · 24 lines

How it starts

The opening of the file, as written. The whole thing — 24 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Atelier Quality Gate Adapter for AGENTS.md

GENERATED FROM skills/atelier/SKILL.md — DO NOT EDIT DIRECTLY.

Run npm run sync-adapters to update.

You must strictly obey the Atelier post-generation quality gate rules for all code generation:

UNIVERSAL UI/UX RULES

  • BASE-UI-101: All layout margins, paddings, and container gaps must strictly conform to an 8px harmonic grid (subgrid: 4px).
  • BASE-UI-102: Font sizes must derive from a standardized modular scale, with negative tracking on display text (>=24px) and wide tracking on micro-labels (<=12px uppercase).
  • BASE-UI-103: Body text and interactive icons must maintain a minimum contrast ratio of 4.5:1 against their rendered background (3.0:1 for text >= 24px).
  • BASE-UI-104: A single screen or viewport state must contain exactly one primary high-emphasis call-to-action (CTA) or focal headline.
  • BASE-UI-105: Visual surfaces must enforce a hard ceiling on decorative elements (gradients, drop shadows, decorative animations) per view to eliminate visual clutter.

UNIVERSAL BACKEND ARCHITECTURE RULES

  • BASE-BE-201: Source code and configuration files must contain zero plaintext credentials, API tokens, or fallback defaults.
  • BASE-BE-202: All external input boundaries (HTTP request body, query parameters, URL path parameters, webhook payloads) must parse through a typed schema validator before business logic execution.
  • BASE-BE-203: Application error handlers must map exceptions to standard HTTP error codes and must never expose internal system stack traces, database schema details, or raw driver errors to clients.
  • BASE-BE-204: Every branching condition, pipeline node, and asynchronous promise must resolve to an explicit terminal response, error handler, or dead-letter logger.
  • BASE-BE-205: All public entry points and outgoing third-party network requests must define explicit timeout caps and rate limiting middleware.

FRAMEWORK PRESETS (Available in skills/atelier/presets/)

  • Next.js + Tailwind: skills/atelier/presets/nextjs-tailwind.md (17 gradeable rules)
  • n8n Workflows: skills/atelier/presets/n8n.md (13 gradeable rules)

Read the full file on GitHub · 24 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. 5d ago First seen · 24 lines · 488 tokens per session scan A 8ed26a5a514e

Subscribe to this mod's changes

atelier-mcp AGENTS.md is an instructions file published in the GitHub repository anshrajore/atelier-mcp (0 stars, last pushed 18d ago), licensed MIT. It adds 488 tokens to every session, about $0.0024 per session on Opus 5. A static security scan graded it A with 0 findings. It is 97% identical to atelier-mcp copilot-instructions.md, differing in 2 lines, and is treated as a copy.

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