AGENTS.mdA

AGENTS.md from rhein1/fable5-codex is an AGENTS.md file: the standing instructions coding agents read in that repo.

Install it, pinned

mdr add rhein1/fable5-codex/AGENTS.md@git:20260706.3b76c67

Pins git:20260706.3b76c67 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 14 of 14 checks passed
Kind: AGENTS.md file
Repository: rhein1/fable5-codex
Path: AGENTS.md
Versions recorded: 2
Latest version: git:20260706.3b76c67, committed Jul 6, 2026
First version recorded: Jul 5, 2026
Size: 1,644 bytes
Repository stars: 4
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

# Fable-5 Repo Instructions

Use this repository to develop and validate the Fable-5 Codex plugin.

## Working Method

For substantive engineering tasks, prefer the Fable-5 workflow style:

1. Map the target before changing it.
2. Split discovery into independent lenses when the task benefits from broader coverage.
3. Require evidence for claims: file path, line number when available, and quoted source or observed behavior.
4. Verify candidate findings adversarially before reporting them as real.
5. Preserve unknowns, refuted findings, and coverage gaps instead of hiding them.
6. For audits, reviews, fact-checks, sweeps, and design choices, use the installed Fable-5 Codex skills:
   - `$fable-audit`
   - `$fable-deep-review`
   - `$fable-fact-check`
   - `$fable-understand`
   - `$fable-design-options`
   - `$fable-sweep`

Use real Codex subagents for large or high-risk Fable tasks when the runtime exposes a subagent tool and the user has not opted out. Treat repo-wide, cross-package, security/privacy/money/data/API, migration, release, exhaustive audit, deep review, and broad sweep tasks as large by default. For routine edits, use the rigor rules without spawning extra agents.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add rhein1/fable5-codex/AGENTS.md@sha256:0c585c10bb7a8ba3

The line at the top of this page pins the label git:20260706.3b76c67, 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_6amhingyhaxjzpym.svg)](https://markdownregistry.com/a/art_6amhingyhaxjzpym)

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

Versions

The registry has recorded 2 versions of this file, between Jul 5, 2026 and Jul 6, 2026, about one every day.

version	committed	commit	size	audit
git:20260706.3b76c67 latest	2026-07-06	3b76c67	1,644 B	A	view · diff
git:20260705.b34280f	2026-07-05	b34280f	1,450 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 (1644 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

rhein1/fable5-codex · 4 stars · license MIT · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_6amhingyhaxjzpym
GET https://markdownregistry.com/api/v1/resolve?ref=rhein1/fable5-codex/AGENTS.md
GET https://markdownregistry.com/api/v1/blob/0c585c10bb7a8ba3a82a439b22745b916b25736e6cf456342fd357a8e00e8898

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.