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AGENTS.mdA

AGENTS.md from seonaru/nulnul-harness is an AGENTS.md file: the standing instructions coding agents read in that repo.

Install it, pinned

mdr add seonaru/nulnul-harness/AGENTS.md@git:20260910.59d366f

Pins git:20260910.59d366f in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 14 of 14 checks passed
Kind: AGENTS.md file
Repository: seonaru/nulnul-harness
Path: AGENTS.md
Versions recorded: 6
Latest version: git:20260910.59d366f, committed Sep 10, 2026
First version recorded: Sep 8, 2026
Size: 4,711 bytes
Repository stars: 34
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

# nulnul harness working agreement

This repository builds `plugins/nulnul-harness/`, a Codex plugin that selects the strongest justified project-local capability system for the requested outcome, verifies the user's work, removes non-contributing setup, and evolves from measured outcomes without requiring users to operate a harness. Simplicity breaks ties between materially equivalent outcome paths; agent, skill, plugin, context, and infrastructure counts are never primary goals.

- Treat `plugins/nulnul-harness/` as the only shipped product boundary.
- Keep the plugin skills-only until a real workflow proves that an MCP server, hook, app, or external service is necessary.
- Inspect a target repository before asking questions. Ask only for product decisions or constraints that cannot be discovered safely. A request to set the harness up on a repository that already has work is never one of those questions.
- Continue the user's original task after setup; setup alone is not task completion.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add seonaru/nulnul-harness/AGENTS.md@sha256:b7f95128a0dba995

The line at the top of this page pins the label git:20260910.59d366f, 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](https://markdownregistry.com/badge/art_25wywnnx4u2z6oqi.svg)](https://markdownregistry.com/a/art_25wywnnx4u2z6oqi)

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

Versions

The registry has recorded 6 versions of this file, between Sep 8, 2026 and Sep 10, 2026, more than one a day.

version	committed	commit	size	audit
git:20260910.59d366f latest	2026-09-10	59d366f	4,711 B	A	view · diff
git:20260909.de98a40	2026-09-09	de98a40	10,828 B	A	view · diff
git:20260908.a9fd59e	2026-09-08	a9fd59e	10,193 B	A	view · diff
git:20260908.747d490	2026-09-08	747d490	10,019 B	A	view · diff
git:20260908.3047a84	2026-09-08	3047a84	9,806 B	A	view · diff
git:20260908.e80c9bf	2026-09-08	e80c9bf	9,509 B	A	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 (4711 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

seonaru/nulnul-harness · 34 stars · license MIT · pushed 2026-09-10 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_25wywnnx4u2z6oqi
GET https://markdownregistry.com/api/v1/resolve?ref=seonaru/nulnul-harness/AGENTS.md
GET https://markdownregistry.com/api/v1/blob/b7f95128a0dba99522df52bee8605b849296eb48d8ac007bf963dbe561f0a93c

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: how to write a good AGENTS.md · AGENTS.md vs CLAUDE.md · which agent file does what.

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