What is gepetto CLAUDE.md?

A repository guide for Gepetto, a Java application that runs task files from a command line.

Use it to build Gepetto, run its Java tests, start the application, execute task files, or follow its code-style and error-handling rules.

It tells coding agents how the project is organized, how to build and test it, and which commands the application supports.

How eschnou/gepetto configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to eschnou/gepetto. 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/eschnou/gepetto/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/eschnou/gepetto

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/eschnou/gepetto/claude-md/github.svg)](https://agentmods.dev/instructions/eschnou/gepetto/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/eschnou/gepetto/claude-md"><img src="https://agentmods.dev/badge/instructions/eschnou/gepetto/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/eschnou/gepetto/claude-md"><img src="https://agentmods.dev/badge/instructions/eschnou/gepetto/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 561 This file is loaded in full into every session.

When invoked 561 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.

Model	Per session	Once invoked
Fable 5.1	$0.00561	$0.00561
Opus 5.5	$0.00224	$0.00224
Sonnet 5.5	$0.00112	$0.00112
Haiku 4.5	$0.00056	$0.00056

Measured 2mo ago against content hash 47f3b49634ca, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

gepetto 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 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.

CLAUDE.md · 65 lines

What it actually says

Gepetto Development Guide

Build Commands

# Build the project
./mvnw clean install

# Quick build (skip tests)
./mvnw clean package -P dev

# Run all Java tests
./mvnw test

# Run a single Java test
./mvnw test -Dtest=TestClassName#testMethodName

# Run application with specific command
./mvnw spring-boot:run -Dspring-boot.run.arguments="help"
./mvnw spring-boot:run -Dspring-boot.run.arguments="run gepetto/tasks/login.gpt --debug"

# Run from JAR (after building)
java -jar target/gepetto-0.0.1-SNAPSHOT.jar help

CLI Commands

init: Initialize a new Gepetto project (--var, -v to define variables)
run <taskfile>: Execute a task file (options: --var, -v, --debug, -d, --no-report)
version: Show version information
help [command]: Display help for commands

Code Style Guidelines

Package structure: Maintain sh.gepetto.app with functional areas (config, model, service, cli)
Imports: No wildcards, standard Java first, then framework-specific imports
Naming: PascalCase for classes, camelCase for methods/variables, UPPER_SNAKE_CASE for constants
Error handling: Use try-catch with specific exceptions, log with SLF4J, return appropriate status codes
Dependency injection: Use Spring's constructor injection
Documentation: Maintain Javadoc for classes and public methods

Project Structure

After initialization, a Gepetto project will have the following structure:

gepetto/
  ├── config.yaml      # Configuration
  ├── tasks/           # Generic automation tasks
  │   ├── login.gpt    # Example task file 
  └── results/         # Execution results

Task File Format

# Task Name
description: "Brief description of task purpose"
tags: [tag1, tag2]
author: "Author Name"
created: "YYYY-MM-DD"

Task:
  Step 1 in natural language.
  Step 2 in natural language.
  ...
  Verification step in natural language.

Product Overview

Gepetto enables natural language task automation without programming knowledge. The app parses plain English task instructions, executes them automatically, and generates user-friendly reports. Focus on maintaining the core components: task parsing, execution service, and CLI commands.

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 · 65 lines · 561 tokens per session scan A 47f3b49634ca

Subscribe to this mod's changes

gepetto CLAUDE.md is an instructions file published in the GitHub repository eschnou/gepetto (12 stars, last pushed 1y ago), licensed MIT. It adds 561 tokens to every session, about $0.0022 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 2026-08-30.

LLM agent ai cli headless mcp

gepetto CLAUDE.md next to 6 instructions from other repositories
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gepetto CLAUDE.mdeschnou/gepetto	Instructions file	12	1y ago	MIT	A	561	Claude Code
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vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
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gepetto: Instructions file for Claude Code