atelier-setup

atelier-setup is a skill for Claude Code, Codex from martinffx/atelier. It costs 52 tokens per session (984 once invoked), scanned A, original, MIT.

A repository setup guide for Atelier, a development workflow toolkit. It reviews project guidance, issue-tracking practices, documentation conventions, and whether the project is a monorepo.

In plain words
What is it for?
Use it to organize AGENTS.md, CLAUDE.md, CONTEXT.md, architecture decision records, and agent documentation for Atelier. It also helps document issue links and conventions in single-project or multi-package repositories.
Why use it?
It helps prevent repository instructions from conflicting or being written in the wrong place. It shows proposed changes first and writes them only after approval.

Skill for Claude CodeCodex

Part of the atelier plugin — 14 skills shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/martinffx/atelier/atelier-setup
Any agent
npx skills add martinffx/atelier --skill atelier-setup
Clone the repo
git clone --depth 1 https://github.com/martinffx/atelier

Made for: Claude Code, Codex.

Or install atelier, the plugin that ships this one along with the rest of its 14 skills.

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-setup

README.md
[![agentmods](https://agentmods.dev/badge/skills/martinffx/atelier/atelier-setup.svg)](https://agentmods.dev/skills/martinffx/atelier/atelier-setup)
Your own site
<a href="https://agentmods.dev/skills/martinffx/atelier/atelier-setup"><img src="https://agentmods.dev/badge/skills/martinffx/atelier/atelier-setup.svg" alt="Measured on agentmods" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 984 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00052 $0.00984
Opus 5 $0.00026 $0.00492
Sonnet 5 $0.00010 $0.00197
Haiku 4.5 $0.00005 $0.00098

Measured 5d ago against content hash 36ccf59b282f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

atelier-setup 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.

skills/atelier-setup/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Atelier Setup

Set up repository guidance that Atelier skills need without taking ownership of the developer's installation, harness configuration, or project structure. Explore first, present every proposed edit exactly, and write only after the developer approves it.

1. Explore

Read the repository before proposing any change:

  • Root AGENTS.md and CLAUDE.md, if present. Note whether either already has an ## Agent skills heading.
  • Root CONTEXT.md and CONTEXT-MAP.md.
  • docs/adr/ and any context-local docs/adr/ directories.
  • docs/agents/, including existing issue-tracker.md and domain.md.
  • Existing issue-tracker conventions: remotes, issue links in documentation, local issue directories, and project guidance.
  • Genuine monorepo signals: a workspace manifest, or multiple independently deployable packages with their own source directories.

Do not create, install, configure, or modify anything during exploration.

2. Present Findings

Summarize what exists and recommend a domain-document layout:

  • Single-context is the default: domain language belongs in root CONTEXT.md; architectural decisions belong in root docs/adr/.
  • Multi-context is appropriate only when the repository has genuinely separate bounded contexts. CONTEXT-MAP.md belongs at the root and points to each context's CONTEXT.md and docs/adr/ directory.

Explain that domain documents remain lazy: do not create CONTEXT.md, CONTEXT-MAP.md, or an ADR directory until another Atelier skill has resolved terminology or made a decision worth recording.

Select or confirm the issue tracker:

  1. If docs/agents/issue-tracker.md already defines one, preserve it unless the developer asks to change it.
  2. Otherwise recommend the tracker indicated by existing repository practice, then ask the developer to confirm or describe their tracker.
  3. Accept GitHub, GitLab, local Markdown, another tracker described by the developer, or none.
  4. Record the chosen workflow in docs/agents/issue-tracker.md; do not install, initialize, or create external tracker resources.

Read the full file on GitHub · 104 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 104 lines · 52 tokens per session scan A 36ccf59b282f

Subscribe to this mod's changes

atelier-setup is a skill published in the GitHub repository martinffx/atelier (45 stars, last pushed 26d ago), licensed MIT. It adds 52 tokens to every session and 984 once invoked, about $0.0003 per session on Opus 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 2026-08-30.

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