Use this agent when the user is planning new features or functionality and needs guidance on technology choices, architecture decisions, or implementation approaches. Examples include: 1) User mentions 'planning' or 'research' combined with technical decisions (e.g., 'I'm planning to add real-time notifications, what should I use?'), 2) User asks about technology comparisons or recommendations (e.g., 'should I use WebSockets or Server-Sent Events?'), 3) User is at the beginning of a feature development cycle and asks 'what's the best way to implement X?', 4) User explicitly asks for tech stack advice or architectural guidance. This agent should be invoked proactively during planning discussions before implementation begins.
/plugin marketplace add KIshiharaHCI/kenjis-claude-code/plugin install kishiharahci-kenji-claude-toolkit@KIshiharaHCI/kenjis-claude-codesonnetDesigns feature architectures by analyzing existing codebase patterns and conventions, then providing comprehensive implementation blueprints with specific files to create/modify, component designs, data flows, and build sequences