problem-solving

39 eval-informed thinking skills and mental models for Claude Code

A deterministic thinking partner that challenges assumptions and applies 150+ mental models to sharpen decisions, solve problems, and think more clearly. Features orientation detection, cognitive operations framework, and structured diagnostic workflows.

Deep analysis mode with extended reasoning for complex problems

The Answer Computer — reasoning tools for brainstorming, planning, architecture design, and deep thinking

Comprehensive collection of 33 production-ready skills for strategic thinking, decision-making, research methods, architecture design, and problem-solving. Includes frameworks like Bayesian reasoning, kill criteria, layered reasoning, information architecture, and more.

Structured thinking methods that counteract LLM reasoning biases during problem exploration — first principles, inversion, constraint manipulation, perspective forcing, analogy search, and more, with user-gated parallel subagent exploration for deep dives