llms.txtA

llms.txt from rhein1/fable5-codex is an llms.txt file: plain text a project publishes for AI models to read.

Install it, pinned
mdr add rhein1/fable5-codex/llms.txt@git:20261020.a2aa9ef

Pins git:20261020.a2aa9ef in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 14 of 14 checks passed
Kind
llms.txt file
Repository
rhein1/fable5-codex
Path
llms.txt
Versions recorded
5
Latest version
git:20261020.a2aa9ef, committed Oct 20, 2026
First version recorded
Sep 21, 2026
Size
2,075 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 for Codex

Fable-5 is a local Codex completion-verification plugin, retaining audits, reviews, fact checks, understanding, design options and sweeps. The unreleased 0.5 source adds requirement-mapped evidence and stale-aware handoffs.

Latest public tagged release: `v0.4.0-alpha.2`.

```powershell
npx github:rhein1/fable5-codex#v0.4.0-alpha.2
codex plugin add fable5-codex@personal
```

Source skills (the tagged alpha.2 release does not include fable-verify):

- `$fable-audit`
- `$fable-verify`
- `$fable-deep-review`
- `$fable-fact-check`
- `$fable-understand`
- `$fable-design-options`
- `$fable-sweep`

Fable requires source-backed evidence, explicit unknowns and truthful traces. Model profiles are centralized and resolved against the chosen client's catalog; explicit overrides and fallbacks remain visible. Preferences do not establish account access or actual execution. Quick verification avoids unnecessary workers; all claimed subagents require actual runtime IDs.

Docs:

- README: https://github.com/rhein1/fable5-codex#readme
- Install: https://github.com/rhein1/fable5-codex/blob/main/docs/codex-install.md
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add rhein1/fable5-codex/llms.txt@sha256:c4a7a209032ee7cd

The line at the top of this page pins the label git:20261020.a2aa9ef, 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_cgo336zriwyweo6y.svg)](https://markdownregistry.com/a/art_cgo336zriwyweo6y)

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

Versions

The registry has recorded 5 versions of this file, between Sep 21, 2026 and Oct 20, 2026, about one every 7 days.

versioncommittedcommitsizeaudit
git:20261020.a2aa9ef latest2026-10-20 a2aa9ef 2,075 BA view · diff
git:20261014.92ad9262026-10-14 92ad926 1,902 BA view · diff
git:20260922.154bf0b2026-09-22 154bf0b 1,726 BA view · diff
git:20260921.48bfacc2026-09-21 48bfacc 1,540 BA view · diff
git:20260921.41cb25e2026-09-21 41cb25e 1,382 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 (2075 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_cgo336zriwyweo6y
GET https://markdownregistry.com/api/v1/resolve?ref=rhein1/fable5-codex/llms.txt
GET https://markdownregistry.com/api/v1/blob/c4a7a209032ee7cd2e63d807330c8ba39b54979c40200e911ecb435b358d8738

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 add an llms.txt file to a website · which agent file does what.

More from rhein1/fable5-codex

AGENTS.md AGENTS.md file
rhein1/fable5-codex · AGENTS.md
git:20260706.3b76c67 · audit A · 4 stars
fable-audit SKILL.md skill
rhein1/fable5-codex · plugins/fable5-codex/skills/fable-audit/SKILL.md · Evidence-first codebase audit for correctness, security, privacy, data, integration, operational, test, and…
git:20261020.a2aa9ef · audit A · 4 stars
fable-deep-review SKILL.md skill
rhein1/fable5-codex · plugins/fable5-codex/skills/fable-deep-review/SKILL.md · Fable-5 deep code review for pull requests, branches, diffs or proposed patches. Use for deep review, review comments…
git:20261108.8f3234f · audit A · 4 stars
fable-design-options SKILL.md skill
rhein1/fable5-codex · plugins/fable5-codex/skills/fable-design-options/SKILL.md · Evidence-grounded design option generation for technical architecture, migrations, APIs, data models, safety controls…
git:20261020.a2aa9ef · audit A · 4 stars
fable-fact-check SKILL.md skill
rhein1/fable5-codex · plugins/fable5-codex/skills/fable-fact-check/SKILL.md · Claim-by-claim verification of docs, status reports, launch claims, changelogs, READMEs, runbooks, and…
git:20261020.a2aa9ef · audit A · 4 stars
fable-sweep SKILL.md skill
rhein1/fable5-codex · plugins/fable5-codex/skills/fable-sweep/SKILL.md · Implement renames, migrations, generated-surface sync, cross-cutting cleanup and connected-workflow repairs. Select…
git:20261108.8f3234f · audit A · 4 stars
fable-understand SKILL.md skill
rhein1/fable5-codex · plugins/fable5-codex/skills/fable-understand/SKILL.md · Source-grounded codebase understanding for behavior, architecture, boot flow, data flow, integration wiring, or "how…
git:20261020.a2aa9ef · audit A · 4 stars
fable-verify SKILL.md skill
rhein1/fable5-codex · plugins/fable5-codex/skills/fable-verify/SKILL.md · Check what a coding agent actually finished before merge or handoff against requirements, current source and observed…
git:20261108.8f3234f · audit A · 4 stars
codex-context-keeper SKILL.md skill
rhein1/fable5-codex · plugins/fable5-codex/standalone/codex-context-keeper/skills/codex-context-keeper/SKILL.md · Prepare or read explicit reviewed evidence-preserving context packs for Codex handoffs. Use when asked to preserve…
git:20261014.aaee860 · audit A · 4 stars

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