agent-eval

Guiding principles for AI-assisted Python backend development. Use when building APIs with FastAPI, designing distributed systems, implementing microservices, or working on any Python backend code. Provides architectural patterns, code standards, testing strategies, and AI workflow integration. Apply when (1) creating new backend services or APIs, (2) refactoring existing Python backend code, (3) designing system architecture, (4) implementing database patterns, (5) writing tests for backend code, or (6) reviewing AI-generated backend code.

Design reasoning and UX principles for frontend interfaces and design documentation. Use automatically for UI or frontend design work, and when explaining or critiquing design decisions, accessibility, or design system choices, or when the user mentions @frontend-design-principles.