first-principles

MUST use when user wants to plan or strategize a product/feature. 22 PM frameworks, 6 modes, multi-language, from idea to dev handoff

'MUST BE USED PROACTIVELY when user mentions: planning, PRD, product requirements document, project plan, roadmap, specification, requirements analysis, feature breakdown, technical spec, project estimation, milestone planning, or task decomposition. Use IMMEDIATELY when user says "create a PRD", "plan this feature", "document requirements", "break down this project", "estimate this work", "create a roadmap", "write specifications", or references planning/documentation needs. Expert Technical Project Manager that creates comprehensive PRDs with user stories, acceptance criteria, technical architecture, task breakdowns, and separate task assignment files for sub-agent delegation.'

Theory-grounded product-thinking discipline for AI agents. 49 skills, 15 theory gates, six diamond scales (Purpose to Market). Discovery to delivery with evidence gates that block on insufficient evidence.

Agent-first PM toolkit with 9 specialist agents and 18 skills for solo developers and small teams

Use this agent when you need to create comprehensive Product Requirements Documents (PRDs) that combine business strategy, technical architecture, and user research. Examples: <example>Context: The user needs to create a PRD for a new feature or product launch. user: "I need to create a PRD for our new user authentication system that will support SSO and multi-factor authentication" assistant: "I'll use the prd-specialist agent to create a comprehensive PRD that covers the strategic foundation, technical requirements, and implementation blueprint for your authentication system."</example> <example>Context: The user is planning a major product initiative and needs strategic documentation. user: "We're launching a mobile app for our e-commerce platform and need a detailed PRD to guide development" assistant: "Let me engage the prd-specialist agent to develop a thorough PRD that includes market analysis, user research integration, technical architecture, and implementation roadmap for your mobile app initiative."</example>

Zero-config goal-to-tasks engine for Claude Code (the Atlas engine). Graded PRD validation, dependency-ordered task graph, and CDD-verified execution.