What is ai-tool-setup?

A setup tool that creates or updates instruction files for GitHub Copilot, Claude Code, Cursor, and OpenAI Codex. These files tell each coding assistant how a project should be handled.

Use it to configure one or all supported AI tools from a project playbook, including root instructions and tool-specific rules.

It keeps the rules used by different coding assistants aligned with the project's policies and structure.

ai-tool-setup — Skill for Claude Code and Codex by vanessamarely

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.

Any agent

npx skills add vanessamarely/ai-playbook-reposito --skill ai-tool-setup

Clone the repo

git clone --depth 1 https://github.com/vanessamarely/ai-playbook-reposito

Made for: Claude Code, Codex.

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/skills/vanessamarely/ai-playbook-reposito/ai-tool-setup/github.svg)](https://agentmods.dev/skills/vanessamarely/ai-playbook-reposito/ai-tool-setup)

Your own site

<a href="https://agentmods.dev/skills/vanessamarely/ai-playbook-reposito/ai-tool-setup"><img src="https://agentmods.dev/badge/skills/vanessamarely/ai-playbook-reposito/ai-tool-setup/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/skills/vanessamarely/ai-playbook-reposito/ai-tool-setup"><img src="https://agentmods.dev/badge/skills/vanessamarely/ai-playbook-reposito/ai-tool-setup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 117 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,656 The whole file, excluding the scripts and references it only reads on demand.

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	$0.00117	$0.01656
Opus 5.5	$0.00047	$0.00662
Sonnet 5.5	$0.00023	$0.00331
Haiku 4.5	$0.00012	$0.00166

Measured 2mo ago against content hash c605bbd419e4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ai-tool-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 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.

ai-playbook/.agents/skills/ai-tool-setup/SKILL.md · 140 lines

How it starts

The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: AI Tool Setup

Purpose

Generate or update AI assistant instruction files for GitHub Copilot, Claude Code, Cursor, and OpenAI Codex CLI so all four tools share a consistent set of policies derived from this playbook. Each tool has its own discovery mechanism and file format — this skill does not assume they share a folder.

Inputs

targetTool: One of copilot, claude, cursor, codex, or all
projectRoot: Absolute path to the repository root
playbookRoot: Path to this playbook directory (default: ai-playbook)

Outputs

Tool	Files written
GitHub Copilot	`.github/copilot-instructions.md`, `.github/instructions/frontend.instructions.md`, `.github/instructions/backend.instructions.md`
Claude Code	`CLAUDE.md`, `.claude/agents/`, `.claude/skills/` (copied from playbook, not generated)
Cursor	`.cursor/rules/workspace-policy.mdc`, `.cursor/rules/style-output.mdc`, plus file-type rules
OpenAI Codex CLI	`AGENTS.md` (root), optional nested `AGENTS.md` per package

Plus a summary of files created or updated.

Procedures

1. Validate Inputs

Verify projectRoot exists and contains a recognizable project (check for package.json, pom.xml, or pyproject.toml).

Verify playbookRoot contains .agents/skills/ and policies/.

If either check fails, output an error and exit.

2. Detect Project Type

Execute: node <playbookRoot>/tools/project-detect.mjs <projectRoot>

Extract:

projectType (react, node-typescript, java-maven, python, unknown)
framework
language

3. Load Applicable Policies

Always read: <playbookRoot>/policies/workspace-policy.md and <playbookRoot>/policies/style-output.md.

If projectType is react or node-typescript:

Read: <playbookRoot>/policies/frontend-policy.md
Read: <playbookRoot>/policies/backend-policy.md

4. Build Skill Routing Table

Map detected project types to the playbook's skills (see <playbookRoot>/.agents/skills/*/SKILL.md frontmatter for the canonical list — Codex does not distinguish "agent" from "skill", so all 13 procedures live under .agents/skills/).

Read the full file on GitHub · 140 lines

Files

What ships with it

6 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.

2mo ago First seen · 140 lines · 117 tokens per session scan A c605bbd419e4

Subscribe to this mod's changes

ai-tool-setup is a skill published in the GitHub repository vanessamarely/ai-playbook-reposito (2 stars, last pushed 3mo ago), licensed MIT. It adds 117 tokens to every session and 1,656 once invoked, about $0.0005 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.

Building agents

ai-tool-setup next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
ai-tool-setupvanessamarely/ai-playbook-reposito	Skill	2	3mo ago	MIT	A	117	Claude Code, Codex
imagegenopenai/codex	Skill	133k	yesterday	Apache-2.0	A	113	Codex
playwright-climicrosoft/playwright	Skill	99k	yesterday	Apache-2.0	A	19	Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	4d ago	MIT	A	200	Claude Code, Codex
systematic-debuggingobra/superpowers	Skill	313k	3d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	95	Claude Code
next-partial-prefetching-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	103	Claude Code