Expert SQL query writing, optimization, and database schema design with support for PostgreSQL, MySQL, SQLite, and SQL Server. Use when working with databases for: (1) Writing complex SQL queries...
This skill should be used when the user asks to "style with Tailwind", "add CSS", "configure theme", "use @theme", "add custom colors", "implement dark mode", "use container queries", "add...
Use when need systematic innovation through comprehensive solution space exploration, resolving technical contradictions (speed vs precision, strength vs weight, cost vs quality), generating novel...
Expert in color theory, palette harmony, and perceptual color science for computational photo composition. Specializes in earth-mover distance optimization, warm/cool alternation, diversity-aware...
Integration and E2E test design principles, ROI calculation, test skeleton specification, and review criteria. Use when designing integration tests, E2E tests, or reviewing test quality.
Save durable session handoff for a feature to WORKING.md plus history snapshot. Feature-first, safe.
Build production-ready Neo-brutalism UI components for React/Next.js applications following the Duckeebs design system. Use when building: (1) Hero sections, cards, buttons, badges, or other UI...
Apply Donella Meadows's systems thinking framework for analyzing complex problems, understanding feedback loops, identifying leverage points, debugging unintended consequences, designing resilient...
Generates tests from features.json test criteria with multi-framework support, coverage analysis, and features.json integration.
Run accessibility and visual design review on components. Use when reviewing UI code for WCAG compliance and design issues.
Run accessibility and visual design review on components. Use when reviewing UI code for WCAG compliance and design issues.
Right-size scope to ship within a fixed timebox (appetite). Produces a Scoping & Cutting Pack: appetite, minimum lovable slice, cut list, validation plan, and a scope-creep guardrail plan. Use for...
Master Java 21+ with modern features like virtual threads, pattern
Master Java 21+ with modern features like virtual threads, pattern
Master Java 21+ with modern features like virtual threads, pattern
Master Java 21+ with modern features like virtual threads, pattern
Master Java 21+ with modern features like virtual threads, pattern
Comprehensive PostgreSQL database engineering skill covering configuration tuning (postgresql.conf, memory, WAL, autovacuum), query optimization (EXPLAIN analysis, index design, rewriting...
Design visual layouts and compositions for web and print. Creates balanced designs with typography, color, and spacing principles applied consistently.
Implement the next highest priority user story from the PRD. Triggers on: implement the next feature, dev next feature.