15 tagged problem-solving, measured the same way as everything else here.
Antropocosmist/triz-engineering-solver
Skill Claude CodeCodex
Apply Altshuller's TRIZ (Theory of Inventive Problem Solving) to resolve engineering contradictions and produce inventive concepts instead of compromise solutions. TRIGGER when the user describes a technical trade-off ("improving X makes Y worse"), a physical contradiction (one element must have opposite properties)…
Skill Claude CodeCodex
Structured multi-step reasoning tool for complex problem solving with branching, hypothesis testing, and evidence tracking.
machinarii/awesome-mental-models
Skill Claude CodeCodex
Use when the user wants help thinking through a decision, problem, strategy, plan, evaluation, communication, or any open-ended judgment call where a mental model or framework would sharpen the analysis. Triggers include "help me decide", "how should I approach this", "I'm stuck on", "which mental model fits", "apply…
Skill Claude CodeCodex
Structured multi-step reasoning tool for complex problem solving with branching, hypothesis testing, and evidence tracking.
Skill Codex
Anxiety-aware, evidence-driven collaboration for stalled or high-stakes work when a user says uncertainty, repeated setbacks, or lack of visible progress is causing significant anxiety or distress. Use immediately when explicitly invoked; when this fit is only inferred from the user's own account, ask permission…
Skill Claude CodeCodex
A quality-problem-solving guide called QCM, or Quality Crisis Management. It routes quality incidents, process problems, governance assessments, and related questions into structured responses and can be used in conversation, through MCP, or as an extension.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: