Sycophancy Challenger
Flips Claude's default from validation to adversarial critique. Use before high-stakes decisions, plans, assumptions, or pitches you haven't stress-tested. Produces structured challenges, steelmanned counter-arguments, and the strongest case against your position — a genuine thinking partner, not a mirror.
Install
npx pm-claude-skills add --agent claude # or codex · cursor · gemini · hermes
# or one-line MCP (every skill, any client):
claude mcp add pm-skills -- npx -y pm-claude-skills-mcp
Related skills
Sycophancy Challenger is one of 174 open-source professional AI agent skills.
Try them all in the browser · ⭐ Star on GitHub · Browse the full catalog