CLAUDE.mdA

CLAUDE.md from jrenaldi79/harness-engineering is a CLAUDE.md file: the standing instructions Claude Code reads in that repo.

Install it, pinned
mdr add jrenaldi79/harness-engineering/CLAUDE.md@git:20261019.b396b4d

Pins git:20261019.b396b4d in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 14 of 14 checks passed
Kind
CLAUDE.md file
Repository
jrenaldi79/harness-engineering
Path
CLAUDE.md
Versions recorded
9
Latest version
git:20261019.b396b4d, committed Oct 19, 2026
First version recorded
Mar 25, 2026
Size
6,145 bytes
Repository stars
69
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.md

This file provides guidance to Claude Code when working with code in this repository.

## Project Overview

**harness-engineering** is a Claude Code plugin and reference for AI coding agent harnesses. The full plugin provides `/readiness` and `/setup`; the independent documentation plugin provides `/documentation:documentation`. Together they assess and configure projects, with a README mapping 20+ best practices from industry sources.

### Core Features

- **`/readiness`**: Scores a codebase across 8 pillars and 5 maturity levels, produces a saved report with delta tracking
- **`/setup`**: Scaffolds CLAUDE.md files, enforcement scripts, git hooks, linter configs, and agent settings via Socratic questioning
- **Reference guide**: Maps best practices from OpenAI, Anthropic, Augment Code, Factory.ai, and practitioners to concrete implementation patterns

---

## Essential Commands

### Testing
```bash
node --test tests/documentation/*.test.js
node --experimental-vm-modules node_modules/.bin/jest tests/scripts/   # Unit tests for setup scripts
bash tests/evals/run-evals.sh                                          # E2E readiness evals (default)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add jrenaldi79/harness-engineering/CLAUDE.md@sha256:9ed0d11c7e05e235

The line at the top of this page pins the label git:20261019.b396b4d, 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_6hsh6n2psdofznsb.svg)](https://markdownregistry.com/a/art_6hsh6n2psdofznsb)

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

Versions

The registry has recorded 9 versions of this file, between Mar 25, 2026 and Oct 19, 2026, about one every 26 days.

versioncommittedcommitsizeaudit
git:20261019.b396b4d latest2026-10-19 b396b4d 6,145 BA view · diff
git:20261018.251706e2026-10-18 251706e 6,052 BA view · diff
git:20261018.67067702026-10-18 6706770 6,052 BA view · diff
git:20261018.f33cc162026-10-18 f33cc16 5,995 BA view · diff
git:20261006.1781fa62026-10-06 1781fa6 5,995 BA view · diff
git:20260326.caf0f9b2026-03-26 caf0f9b 11,349 BA view · diff
git:20260325.918796e2026-03-25 918796e 11,248 BA view · diff
git:20260325.fb2f8b92026-03-25 fb2f8b9 10,876 BA view · diff
git:20260325.9a3588b2026-03-25 9a3588b 10,884 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 (6145 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

jrenaldi79/harness-engineering · 69 stars · license MIT · pushed 2026-10-19 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_6hsh6n2psdofznsb
GET https://markdownregistry.com/api/v1/resolve?ref=jrenaldi79/harness-engineering/CLAUDE.md
GET https://markdownregistry.com/api/v1/blob/9ed0d11c7e05e23595f9a727aa7af7522a44c0f9575ab4b61c4c46560edb08b3

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.

More from jrenaldi79/harness-engineering

documentation SKILL.md skill
jrenaldi79/harness-engineering · plugins/documentation/skills/documentation/SKILL.md · Use when the user asks to install or maintain a documentation index, keep CLAUDE.md or AGENTS.md inventories…
git:20261018.e5b1d65 · audit A · 69 stars
readiness SKILL.md skill
jrenaldi79/harness-engineering · skills/readiness/SKILL.md · Use when the user wants to analyze, audit, or assess their codebase for AI agent readiness. Also use for "readiness…
git:20260325.dd7ee41 · audit A · 69 stars
setup SKILL.md skill
jrenaldi79/harness-engineering · skills/setup/SKILL.md · Use when the user wants to set up a new project or add enforcement tooling (TDD, secret scanning, file size limits, git…
git:20261019.b396b4d · audit A · 69 stars
CLAUDE.md@tests/evals/fixtures/level-3-enforced CLAUDE.md file
jrenaldi79/harness-engineering · tests/evals/fixtures/level-3-enforced/CLAUDE.md
git:20260323.d683468 · audit A · 69 stars
plan SKILL.md skill
jrenaldi79/harness-engineering · tests/evals/fixtures/level-5-autonomous/.claude/skills/plan/SKILL.md · Create an implementation plan before writing any code
git:20260323.d683468 · audit A · 69 stars
CLAUDE.md@tests/evals/fixtures/level-5-autonomous CLAUDE.md file
jrenaldi79/harness-engineering · tests/evals/fixtures/level-5-autonomous/CLAUDE.md
git:20260324.130237b · audit A · 69 stars

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