atelier: Instructions file for Claude Code

CLAUDE.md

atelier CLAUDE.md is an instructions file for Claude Code from ahamedzoha/atelier. It costs 374 tokens per session, scanned A, original, MIT.

Instructions for Claude Code when working in the Atelier repository. They point to the main AGENTS.md contract and describe the project's startup checks, modes, skills, and memory rules.

In plain words
What is it for?
Use them to read project status, start onboarding when needed, switch modes, create milestones, review progress, review architecture decisions, and continue lessons.
Why use it?
They help Claude begin each session with the correct project state and follow the repository's learning-focused process consistently.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is ahamedzoha/atelier's own configuration. It tells Claude Code how to work on atelier 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 configures →

Reuse

Borrowing it

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

Made for: Claude Code.

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 CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/ahamedzoha/atelier/claude-md/github.svg)](https://agentmods.dev/instructions/ahamedzoha/atelier/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/ahamedzoha/atelier/claude-md"><img src="https://agentmods.dev/badge/instructions/ahamedzoha/atelier/claude-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.

agentmods 80×15 button for atelier CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/ahamedzoha/atelier/claude-md"><img src="https://agentmods.dev/badge/instructions/ahamedzoha/atelier/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 374 This file is loaded in full into every session.
When invoked 374 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 $0.00374 $0.00374
Opus 5.5 $0.00150 $0.00150
Sonnet 5.5 $0.00075 $0.00075
Haiku 4.5 $0.00037 $0.00037

Measured 1mo ago against content hash b3ab5f50e686, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

atelier CLAUDE.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 1mo 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.

CLAUDE.md · 40 lines

What it actually says

CLAUDE.md

This project's full AI contract lives in AGENTS.md — read it in full. It is canonical; this file only adds Claude Code specifics.

@AGENTS.md

First thing, every session

  1. Read PROJECT.md.
  2. If its status is UNINITIALIZED, run the start skill (the onboarding interview) before anything else.
  3. Otherwise, note the active mode and current phase and proceed within the mode's rules.

Skills available in this repo

Invoke with /<name>; each skill just runs the matching playbook in docs/playbooks/, so behavior stays consistent across tools.

  • /start — onboarding interview: turn this template into your project.
  • /mode — switch between guided, collab, and autopilot.
  • /milestone — produce the next guided milestone build doc.
  • /progress — compare repo state to the roadmap, log progress, plan next session.
  • /adr-review — review an ADR you've written (never write one for you).
  • /lesson — produce or continue a deep-dive learning-track lesson.

Memory

If you keep cross-session memory, record: the user's background and goals (from onboarding), the active mode, and where the current phase stands. Re-read PROJECT.md each session rather than trusting stale memory — it is the live state.

Mode reminder

The mode in PROJECT.md is binding. In guided mode you must never create or edit application code — deliver it as an annotated snippet for the user to type. See AGENTS.md §2.

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. 1mo ago First seen · 40 lines · 374 tokens per session scan A b3ab5f50e686

Subscribe to this mod's changes

atelier CLAUDE.md is an instructions file published in the GitHub repository ahamedzoha/atelier (3 stars, last pushed 4mo ago), licensed MIT. It adds 374 tokens to every session, about $0.0015 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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