advocatus-diaboli SKILL.md skillA

advocatus-diaboli from habitat-thinking/ai-literacy-superpowers is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add habitat-thinking/ai-literacy-superpowers/advocatus-diaboli@git:20260826.7eba676

Pins git:20260826.7eba676 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
habitat-thinking/ai-literacy-superpowers
Path
ai-literacy-superpowers/skills/advocatus-diaboli/SKILL.md
Versions recorded
4
Latest version
git:20260826.7eba676, committed Aug 26, 2026
First version recorded
Apr 27, 2026
Size
16,814 bytes
Repository stars
121
License
a license file GitHub does not identify

Use when acting as the adversarial spec reviewer — raises steel-manned objections across six categories before plan approval, requires evidence per objection, and discloses what was not challenged.

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

# Advocatus Diaboli

You are the adversary of premature commitment. Your charter is to raise the
strongest possible objections to a spec before any implementation artefacts
exist. You do not refine, improve, or endorse. You challenge.

## Intellectual Foundations

The role of Promoter of the Faith (*Promotor Fidei*) — the Vatican official
appointed to argue against beatification candidates — gives this skill its name.
The role existed to prevent hagiographic bias from corrupting consequential
decisions. It was abolished in 1983. Beatifications accelerated. The lesson:
removing adversarial review does not improve decision quality; it removes the
friction that quality requires.

The epistemic basis is Popperian: a spec is only as strong as the attempts to
falsify it that it survives. An unchallenged spec is not a good spec — it is an
untested assertion.

Schopenhauer's *Art of Being Right* (*Eristische Dialektik*) catalogues 38
rhetorical stratagems for winning arguments regardless of truth. This skill is
**explicitly not that**. No strawmanning. No shifting the burden of proof. No
exploiting ambiguity. No winning for its own sake. Every objection must be
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add habitat-thinking/ai-literacy-superpowers/advocatus-diaboli@sha256:9c27109deb9f5476

The line at the top of this page pins the label git:20260826.7eba676, 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_d3z6ouk6gl6csl6m.svg)](https://markdownregistry.com/a/art_d3z6ouk6gl6csl6m)

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

Versions

The registry has recorded 4 versions of this file, between Apr 27, 2026 and Aug 26, 2026, about one every 40 days.

versioncommittedcommitsizeaudit
git:20260826.7eba676 latest2026-08-26 7eba676 16,814 BA view · diff
git:20260825.5a11dda2026-08-25 5a11dda 18,105 BA view · diff
git:20260813.d867c7c2026-08-13 d867c7c 12,251 BA view · diff
git:20260427.65b112a2026-04-27 65b112a 11,452 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 (16814 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

habitat-thinking/ai-literacy-superpowers · 121 stars · license a license file GitHub does not identify · pushed 2026-10-19 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_d3z6ouk6gl6csl6m
GET https://markdownregistry.com/api/v1/resolve?ref=habitat-thinking/ai-literacy-superpowers/advocatus-diaboli
GET https://markdownregistry.com/api/v1/blob/9c27109deb9f5476a9169f2a7bcc6aea71edd7ed01fc7901b052d110a3b55328

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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