falsify SKILL.md skillA

falsify from spoon94/skill-vault is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add spoon94/skill-vault/falsify@git:20261003.46c363a

Pins git:20261003.46c363a in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
spoon94/skill-vault
Path
falsify/SKILL.md
Versions recorded
5
Latest version
git:20261003.46c363a, committed Oct 3, 2026
First version recorded
Oct 2, 2026
Size
5,412 bytes
Repository stars
5
License
MIT

Force a concrete counterexample or falsification case into an artifact, explanation, plan, design, claim, or mental model before it is trusted. Use to stress-test a polished output that might be selling a wrong model, when the user asks to falsify / counterexample / edge case / "where does this break" / falsification / 「证伪」, or when the user asks to run a falsification check on a just-produced artifact.

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

# falsify — Force a Falsification Block

The trap of a polished artifact is that it can **sell a wrong mental model with confidence**. A beautiful explanation, diagram, plan, or design reads as correct precisely because it is polished. Before any such output is trusted, force in at least one concrete case where the model **breaks**.

This skill has no opinion about content. It only enforces one thing: **the output must contain an explicit counterexample / failure case**, or state — with evidence — why no realistic one exists.

## When to invoke

- When the user asks for a counterexample, edge case, falsification, "where does this break", "when is this wrong", or "stress-test this".
- When an output reads suspiciously smooth, complete, or happy-path-only.

Target artifact or claim: $ARGUMENTS — 若无参数,检查当前对话中最近产出的产物。

## What to produce

For the given artifact or claim, output a **counterexample block** with these parts:

1. **The model as stated, and its load-bearing assumptions** — 产物断言什么,以及它依赖哪些关键假设。输出应展示假设本身,以及哪个假设一旦改变会翻转结论。
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add spoon94/skill-vault/falsify@sha256:9d02f9c251049fbc

The line at the top of this page pins the label git:20261003.46c363a, 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_5fz2my7n5phvmcvj.svg)](https://markdownregistry.com/a/art_5fz2my7n5phvmcvj)

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

Versions

The registry has recorded 5 versions of this file, between Oct 2, 2026 and Oct 3, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20261003.46c363a latest2026-10-03 46c363a 5,412 BA view · diff
git:20261003.56796fe2026-10-03 56796fe 5,363 BA view · diff
git:20261003.42008cf2026-10-03 42008cf 5,472 BA view · diff
git:20261002.f5e92c82026-10-02 f5e92c8 4,919 BA view · diff
git:20261002.38de0fc2026-10-02 38de0fc 4,921 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 (5412 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

spoon94/skill-vault · 5 stars · license MIT · pushed 2026-10-23 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_5fz2my7n5phvmcvj
GET https://markdownregistry.com/api/v1/resolve?ref=spoon94/skill-vault/falsify
GET https://markdownregistry.com/api/v1/blob/9d02f9c251049fbce10fe4825e3752b3fe864d778ef0da81da6cd7df5b10c1f4

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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