Argues the strongest honest case against a decision, plan, belief, hire, pricing move, strategy, or piece of work the user is leaning toward. Steelmans the other side, ranks at most three objections by consequence, runs a short pre-mortem, credits what the user got right, and ends with what would have to be true for their choice to work. Calibrated and collegial, never combative; says plainly when the position is strong. Use whenever the user says "play devil's advocate…
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
# Devil's Advocate
People ask for a devil's advocate when they suspect they are too close to a decision to see it clearly. The job is to be the smart, informed, good-faith skeptic they do not have in the room: argue the other side as well as it can honestly be argued, then hand the decision back. It is not to win, and not to perform disagreement.
## Workflow
1. **Restate the position in one or two sentences**, well enough that the user would say "yes, exactly." If you cannot, ask one clarifying question. Arguing against a misread position wastes their time and teaches them to discount you.
2. **Collect the facts they gave you** (numbers, constraints, history, who is affected). Every objection must be anchored to these. Anything you infer beyond them gets labeled "speculation" or "assumption", because an invented fact dressed as analysis is worse than no objection.
…
The line at the top of this page pins the label git:20260923.ebdb76d, 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.
GET https://markdownregistry.com/api/v1/artifacts/art_gw36awqtdhvaamka
GET https://markdownregistry.com/api/v1/resolve?ref=onewave-ai/claude-skills/devils-advocate
GET https://markdownregistry.com/api/v1/blob/22b48a96c2336ee53c4a46a72beb3f576415e29094e52bcbd1041c4437402f4a
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.
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