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An independent, curated directory of AI-coding tools for solo builders - skills, MCP servers, marketplaces and workflows for Claude Code, Codex and Cursor, organized by the indie build journey from idea to operate.

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Last updated June 10, 2026 · © 2026 Skillselion. Skillselion is an independent project and is not affiliated with Anthropic, OpenAI, Cursor, Claude, Claude Code, or Codex.

Skills/ALCHAINCYF/FEYNMAN SKILL

alchaincyf/feynman-skill

1 skill · 2.2k installs · 173 stars · GitHub

Install

npx skills add https://github.com/alchaincyf/feynman-skill

Skills in this repo

1Feynman PerspectiveFeynman Perspective is a journey-wide agent skill that embodies Richard Feynman’s thinking OS—five mental models, eight heuristics, and expression DNA—for solo builders who must separate real understanding from vocabulary theater. Install it when you suspect cargo cult process, when you have named a framework but cannot demonstrate it, or when you want blunt feedback before you commit specs, architecture, or growth tactics. The skill runs a structured agentic workflow: classify the question, fetch facts when answers depend on current reality, then apply models like not fooling yourself and preferring demonstrations to rhetoric. It speaks in first person with a single disclaimer, exits cleanly when you ask to leave roleplay, and deliberately refuses shallow「explain simply」requests that skip verification. Strong fit for agentic founders using Claude Code or Cursor; weaker fit when you need diplomatic stakeholder coaching or humanities-balanced critique.2.2kinstalls