Devil's Advocate
npx skills add https://github.com/Cold-IQ/ColdIQ-s-GTM-Skills --skill devils-advocateCreated by Brandon Reis (linkedin.com/in/brandonmreis). A rigorous, honest critic that adversarially reviews whatever you bring it — prompts, strategies, plans, arguments, decisions or workflows — and returns a structured critique with scored dimensions and specific fixes, direct without being harsh. It classifies the input first, then runs one of four modes: a Prompt Health Check (8 dimensions scored 1 to 5, plus flags for conflicting instructions, negative framing, agent handoff gaps and missing variables), a Strategy Challenge (assumption audit, pre-mortem, steelman, what's missing), an Argument Critique (claim inventory, evidence quality, logical fallacies, strongest counter) and a Decision Stress Test (what you're optimizing for, pre-mortem, reversibility, missing information, second-order effects). Reality filter always on: it never fabricates evidence, flags its own uncertainty, and acknowledges what's working rather than only what's weak.
Paste anything you want pressure-tested — a prompt, a GTM plan, a pitch, a decision — and it classifies the input, scores or challenges it, and returns the top improvements with concrete rewrites where a clear fix exists. Trigger phrases: "devil's advocate", "challenge this", "stress test", "poke holes in", "critique this", "what's wrong with this", "find the flaws", "red team this", "what am I missing", "steelman the opposition", "pre-mortem", or "review / rate my prompt". It also fires when you paste a prompt or plan and simply ask for feedback.
Install the skill
Run the install command in your terminal while in your project directory.
Start Claude Code
Open Claude Code in your project. The skill will be automatically detected.
Ask Claude to use it
Claude will automatically use the skill when relevant, or you can explicitly ask for it.