
Open-source engineering skills and slash commands for AI coding agents, covering specification, planning, implementation, testing, review, performance, and deployment across tools such as Claude Code, Cursor, Codex, and Copilot.
Prices and medians update for the tier you select.
Ranked by how closely each one matches Agent Skills 4's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.
Market = the products most similar to this one by capability; prices are median / quartiles over its priced members, separated by provider type and buyer tier.