fable-judge SKILL.md skillA

fable-judge from sahir619/fable-method is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sahir619/fable-method/fable-judge@git:20261003.9924067

Pins git:20261003.9924067 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
sahir619/fable-method
Path
skills/fable-judge/SKILL.md
Versions recorded
5
Latest version
git:20261003.9924067, committed Oct 3, 2026
First version recorded
Jul 7, 2026
Size
6,096 bytes
Repository stars
2,304
License
MIT

Adversarial verification of finished work. Treats any "done" as a set of claims, then re-runs the claimed verifications, diffs what actually changed, detects weakened tests and false completion claims, and delivers an evidence-based verdict (VERIFIED / VERIFIED WITH CAVEATS / REFUTED). Use after any agent or model claims work is complete - "/fable-judge", "judge this work", "verify what it did", "did that actually work?". Also runs the fable-method trap suite against a skill or model via…

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-judge

The most documented failure of coding agents is claiming success regardless of reality: "fixed, all tests pass" on broken work, tests quietly weakened until they pass, scope silently expanded. The judge's stance is fixed: **a report is a set of claims, not evidence.** Nothing is believed that was not observed.

## Default mode: judge the work

Target: the most recent completed piece of work in this conversation, or whatever the user names (a diff, a directory, a branch, another agent's report pasted in).

1. **Collect the claims.** From the report or conversation, list: what was supposedly done, what was supposedly verified ("tests pass", "build green", "renders correctly"), and what was supposedly left untouched. Each becomes a row to prove or refute.
2. **Establish what actually changed.** `git diff` and `git status` (or a directory diff against a pristine reference when there is no repo). The diff is ground truth; the report is not. Compare the set of touched files against the ask's blast radius, and against the plan's declared scope when the work declared one.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sahir619/fable-method/fable-judge@sha256:84812479ced973e7

The line at the top of this page pins the label git:20261003.9924067, 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_zobtzyiy2gvjwjwa.svg)](https://markdownregistry.com/a/art_zobtzyiy2gvjwjwa)

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

Versions

The registry has recorded 5 versions of this file, between Jul 7, 2026 and Oct 3, 2026, about one every 22 days.

versioncommittedcommitsizeaudit
git:20261003.9924067 latest2026-10-03 9924067 6,096 BA view · diff
git:20260715.88b5cf32026-07-15 88b5cf3 6,098 BA view · diff
git:20260709.ef001dc2026-07-09 ef001dc 5,510 BA view · diff
git:20260707.433a0212026-07-07 433a021 5,288 BA view · diff
git:20260707.3bcd75c2026-07-07 3bcd75c 4,752 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (6096 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

sahir619/fable-method · 2,304 stars · license MIT · pushed 2026-10-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_zobtzyiy2gvjwjwa
GET https://markdownregistry.com/api/v1/resolve?ref=sahir619/fable-method/fable-judge
GET https://markdownregistry.com/api/v1/blob/84812479ced973e7ec2981f25e11c7a3d1e3a5911532453a46f16b34d6bb3915

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: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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