PM-Skills is an open-source collection of 27 product management skills for Claude Code. It covers the full product lifecycle — from discovery and problem definition through delivery and iteration — using the Triple Diamond framework. Each skill includes structured instructions, professional templates, and real-world examples so Claude produces consistent, high-quality PM artifacts instead of generic responses. Includes 3 workflow bundles (Triple Diamond, Lean Startup, Feature Kickoff) and an interactive skill builder. Apache 2.0 licensed, follows the agentskills.io specification.