Open-Source Agent Skills Project Organizes Work Across Six Coding Stages

The open-source addyosmani/agent-skills repository gives developers reusable workflows for AI coding agents, organizing software work into six stages from defining requirements to shipping.

The project divides development into Define, Plan, Build, Verify, Review and Ship. Commands include /spec for setting requirements before coding and /test for test-driven development.

The /build auto command enables autonomous task execution with test-driven verification at each step, reducing manual intervention.

Other commands cover web performance audits and code simplification. The repository supports more than 70 AI agents, including Claude Code, Cursor, Codex and Copilot. The project offers CLI-based integration for developer workflows.