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CLAUDE.mdA

CLAUDE.md from piebald-ai/claude-code-system-prompts is a CLAUDE.md file: the standing instructions Claude Code reads in that repo.

Install it, pinned
mdr add piebald-ai/claude-code-system-prompts/CLAUDE.md@git:20260209.dd0f623

Pins git:20260209.dd0f623 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 14 of 14 checks passed
Kind
CLAUDE.md file
Repository
piebald-ai/claude-code-system-prompts
Path
CLAUDE.md
Versions recorded
1
Latest version
git:20260209.dd0f623, committed Feb 9, 2026
Size
1,629 bytes
Repository stars
13,110
License
MIT

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Claude Code System Prompts

## What this repository is

System prompts extracted via script from the Claude Code npm package's compiled JavaScript source. Maintained by [Piebald AI](https://piebald.ai/), not by Anthropic.

See the [Extraction section in README.md](./README.md#extraction) for details on the extraction method.

## What Claude Code is

Claude Code is Anthropic's CLI tool for agentic coding. It is distributed as a compiled npm package (`@anthropic-ai/claude-code`). Source code is not publicly available. The [anthropics/claude-code](https://github.com/anthropics/claude-code) GitHub repository contains issues and releases only.

## How to use these files

- **Reference:** Understand what prompts Claude Code uses and how they change across versions
- **Local patching:** Use [tweakcc](https://github.com/Piebald-AI/tweakcc) to customize individual prompt pieces in your local Claude Code installation
- **Feature requests:** For changes to Claude Code's prompts, file issues at [anthropics/claude-code/issues](https://github.com/anthropics/claude-code/issues)

## For AI agents working with this repository
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add piebald-ai/claude-code-system-prompts/CLAUDE.md@sha256:6fb0cae37ab2386d

The line at the top of this page pins the label git:20260209.dd0f623, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_4gqgidrihxhzngsv.svg)](https://markdownregistry.com/a/art_4gqgidrihxhzngsv)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Feb 9, 2026.

versioncommittedcommitsizeaudit
git:20260209.dd0f623 latest2026-02-09 dd0f623 1,629 BA view

Audit of the latest version

A  14 of 14 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Size between 200 bytes and 200 KB (1629 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

piebald-ai/claude-code-system-prompts · 13,110 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_4gqgidrihxhzngsv
GET https://markdownregistry.com/api/v1/resolve?ref=piebald-ai/claude-code-system-prompts/CLAUDE.md
GET https://markdownregistry.com/api/v1/blob/6fb0cae37ab2386d2e3da2c1ac8214c1f43d37b1b11f9f52a7d70891322866d7

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: what a CLAUDE.md file is · keeping AGENTS.md and CLAUDE.md in sync · which agent file does what.

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