Adversarial Review
mengxi-ream/read-frog
Adversarial code review using cross-model approach. An agent skill from mengxi-ream/read-frog.
A skill your agent uses when acting as the adversarial spec reviewer — raises steel-manned objections across six categories before plan approval, requires evidence per objection, and discloses what…
Custom licenceAuto-check passed
Install Advocatus Diaboli
$ npx skills add Habitat-Thinking/ai-literacy-superpowers --skill advocatus-diaboli -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Habitat-Thinking/ai-literacy-superpowers advocatus-diaboli --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/Habitat-Thinking/ai-literacy-superpowers.git skills-src && mkdir -p .claude/skills && cp -r skills-src/ai-literacy-superpowers/skills/advocatus-diaboli .claude/skills/advocatus-diaboli && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "advocatus-diaboli" agent skill from https://github.com/Habitat-Thinking/ai-literacy-superpowers/tree/main/ai-literacy-superpowers/skills/advocatus-diaboli into .claude/skills/advocatus-diaboli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "advocatus-diaboli", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/Habitat-Thinking/ai-literacy-superpowers/tree/main/ai-literacy-superpowers/skills/advocatus-diaboliType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add Habitat-Thinking/ai-literacy-superpowers --skill advocatus-diaboli -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Habitat-Thinking/ai-literacy-superpowers advocatus-diaboli --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Habitat-Thinking/ai-literacy-superpowers.git skills-src && mkdir -p .agents/skills && cp -r skills-src/ai-literacy-superpowers/skills/advocatus-diaboli .agents/skills/advocatus-diaboli && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "advocatus-diaboli" agent skill from https://github.com/Habitat-Thinking/ai-literacy-superpowers/tree/main/ai-literacy-superpowers/skills/advocatus-diaboli into .agents/skills/advocatus-diaboli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "advocatus-diaboli", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Habitat-Thinking/ai-literacy-superpowers --skill advocatus-diaboli -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Habitat-Thinking/ai-literacy-superpowers advocatus-diaboli --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Habitat-Thinking/ai-literacy-superpowers.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/ai-literacy-superpowers/skills/advocatus-diaboli .cursor/skills/advocatus-diaboli && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "advocatus-diaboli" agent skill from https://github.com/Habitat-Thinking/ai-literacy-superpowers/tree/main/ai-literacy-superpowers/skills/advocatus-diaboli into .cursor/skills/advocatus-diaboli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "advocatus-diaboli", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/Habitat-Thinking/ai-literacy-superpowers.git --path ai-literacy-superpowers/skills/advocatus-diaboli--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add Habitat-Thinking/ai-literacy-superpowers --skill advocatus-diaboli -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Habitat-Thinking/ai-literacy-superpowers advocatus-diaboli --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Habitat-Thinking/ai-literacy-superpowers.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/ai-literacy-superpowers/skills/advocatus-diaboli .gemini/skills/advocatus-diaboli && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "advocatus-diaboli" agent skill from https://github.com/Habitat-Thinking/ai-literacy-superpowers/tree/main/ai-literacy-superpowers/skills/advocatus-diaboli into .gemini/skills/advocatus-diaboli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "advocatus-diaboli", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install Habitat-Thinking/ai-literacy-superpowers advocatus-diaboliInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add Habitat-Thinking/ai-literacy-superpowers --skill advocatus-diaboli -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Habitat-Thinking/ai-literacy-superpowers.git skills-src && mkdir -p .github/skills && cp -r skills-src/ai-literacy-superpowers/skills/advocatus-diaboli .github/skills/advocatus-diaboli && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "advocatus-diaboli" agent skill from https://github.com/Habitat-Thinking/ai-literacy-superpowers/tree/main/ai-literacy-superpowers/skills/advocatus-diaboli into .github/skills/advocatus-diaboli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "advocatus-diaboli", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Habitat-Thinking/ai-literacy-superpowers --skill advocatus-diaboli -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Habitat-Thinking/ai-literacy-superpowers advocatus-diaboli --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Habitat-Thinking/ai-literacy-superpowers.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/ai-literacy-superpowers/skills/advocatus-diaboli .opencode/skills/advocatus-diaboli && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "advocatus-diaboli" agent skill from https://github.com/Habitat-Thinking/ai-literacy-superpowers/tree/main/ai-literacy-superpowers/skills/advocatus-diaboli into .opencode/skills/advocatus-diaboli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "advocatus-diaboli", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
advocatus-diaboli- GitHub stars
- 114
- Token cost
- ~4.2k tokens
- SKILL.md length
- 2,207 words
- Files
- 2 (incl. references)
- Skills in repo
- 42
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
A skill your agent uses when acting as the adversarial spec reviewer — raises steel-manned objections across six categories before plan approval, requires evidence per objection, and discloses what…
- Acting as the adversarial spec reviewer — raises steel-manned objections across six categories before plan approval
- SKILL.md covers Intellectual Foundations, Non-Goals, The Six Categories and The Routing Rule (diaboli vs.…, plus 6 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Requires evidence per objection
What it does
Advocatus Diaboli is an agent skill from Habitat-Thinking/ai-literacy-superpowers. 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
Its SKILL.md is about 4.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/observability.md`).
The repository describes itself as: A set of Claude Code and GitHub Copilot plugins providing the AI Literacy framework's complete development workflow — harness engineering, agent orchestration, literate….
When your agent uses it
- Acting as the adversarial spec reviewer — raises steel-manned objections across six categories before plan approval
- Requires evidence per objection
- Discloses what was not challenged
Example prompts
- “/advocatus-diaboli”
What it can do on your machine
Read from SKILL.md and the folder at commit 9d35995. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown and yaml).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Advocatus Diaboli loads about 4.2k tokens when it runs, and up to ~6.5k if it reads all its reference files. Until then it costs about 54 tokens; SKILL.md has 2,207 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 2,207 words (~4,184 tokens).
“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.”
- name
- advocatus-diaboli
Files
SKILL.md and 1 other file (references) in ai-literacy-superpowers/skills/advocatus-diaboli of Habitat-Thinking/ai-literacy-superpowers.
- SKILL.md
- references/observability.md
Open the folder on GitHubat commit 9d35995
Compare with similar skills
Advocatus Diaboli next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Advocatus Diaboli this skillHabitat-Thinking/ai-literacy-superpowers | 114 | — | ~4.2k | Automated safety check: Pass | Custom licence | |
| Adversarial Reviewmengxi-ream/read-frog | 10k | 1 repos | ~905 | Automated safety check: Pass | GPL-3.0 | |
| Named Persona Adversarial Reviewalirezarezvani/claude-skills | 28k | — | ~2.7k | Automated safety check: Pass | MIT | |
| Perform Adversarial Reviewai-dynamo/dynamo | 8.3k | — | ~3.6k | Automated safety check: Pass | Apache-2.0 | |
| Adversarial Document Reviewerudecode/plate | 17k | — | ~1.8k | Automated safety check: Pass | Custom licence | |
| Review Pending PR Reviewsnrwl/nx | 29k | — | ~3.9k | Automated safety check: Pass | MIT |
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Review Pending PR Reviews
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Questions about Advocatus Diaboli
What does Advocatus Diaboli do?
A skill your agent uses when acting as the adversarial spec reviewer — raises steel-manned objections across six categories before plan approval, requires evidence per objection, and discloses what…. Advocatus Diaboli is an agent skill from Habitat-Thinking/ai-literacy-superpowers.
When should I use Advocatus Diaboli?
Advocatus Diaboli fits situations like: acting as the adversarial spec reviewer — raises steel-manned objections across six categories before plan approval; requires evidence per objection; discloses what was not challenged.
How do I install Advocatus Diaboli in Claude Code?
Run `npx skills add Habitat-Thinking/ai-literacy-superpowers --skill advocatus-diaboli -a claude-code`. Or copy the skill folder (ai-literacy-superpowers/skills/advocatus-diaboli in Habitat-Thinking/ai-literacy-superpowers) into .claude/skills/advocatus-diaboli in your project. Claude Code loads it when a task matches its description.
How do I install Advocatus Diaboli in Codex?
Run `npx skills add Habitat-Thinking/ai-literacy-superpowers --skill advocatus-diaboli -a codex`. Or copy the skill folder (ai-literacy-superpowers/skills/advocatus-diaboli in Habitat-Thinking/ai-literacy-superpowers) into .agents/skills/advocatus-diaboli in your project. Codex loads it when a task matches its description.
Can I use Advocatus Diaboli in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Habitat-Thinking/ai-literacy-superpowers --skill advocatus-diaboli -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/advocatus-diaboli, .gemini/skills/advocatus-diaboli, .github/skills/advocatus-diaboli and .opencode/skills/advocatus-diaboli in your project.
What does Advocatus Diaboli need to run?
SKILL.md names no scripts, command-line tools or credentials: Advocatus Diaboli is instructions for the agent only.
Does Advocatus Diaboli access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Advocatus Diaboli safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Advocatus Diaboli use?
Advocatus Diaboli has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Advocatus Diaboli use?
About 4.2k tokens (SKILL.md is roughly 17k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.3k tokens, read only when the agent opens those files.
What are the alternatives to Advocatus Diaboli?
Skills that share tags, products or a category with Advocatus Diaboli: Adversarial Review (mengxi-ream/read-frog, 10k stars), Named Persona Adversarial Review (alirezarezvani/claude-skills, 28k stars), Perform Adversarial Review (ai-dynamo/dynamo, 8.3k stars) and Adversarial Document Reviewer (udecode/plate, 17k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Advocatus Diaboli?
Habitat-Thinking (a GitHub organization) maintains it in Habitat-Thinking/ai-literacy-superpowers, which has 114 GitHub stars. The repository holds 42 skills in this directory. The repository was last updated on September 20, 2026.
Source: Habitat-Thinking/ai-literacy-superpowers on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.