Loading...
Loading...
Found 160 Skills
WHEN testing React components/hooks/context with React Testing Library; NOT e2e; covers renderHook, providers, forms, and anti-patterns.
Writes behavior-focused tests using Testing Trophy model with real dependencies. Use when writing tests, choosing test types, or avoiding anti-patterns like testing mocks.
Methodology for debugging non-trivial problems systematically. This skill should be used automatically when investigating bugs, test failures, or unexpected behavior that isn't immediately obvious. Emphasizes hypothesis formation, parallel investigation with subagents, and avoiding common anti-patterns like jumping to conclusions or weakening tests.
Brutally honest Rails code review from DHH's perspective. Use when reviewing Rails code for anti-patterns, JS framework contamination, or violations of Rails conventions.
SQL query patterns, schema design, and optimization. Joins, CTEs, window functions, indexing, and anti-patterns. Use when writing SQL queries, designing schemas, optimizing database performance, or reviewing database code.
Comprehensive UI design skill covering fundamentals, patterns, and anti-patterns. Layout, typography, color, spacing, accessibility, motion, and component design. Use when building any web interface, reviewing design quality, or creating distinctive UIs.
Use when managing NixOS systems — rebuilding, configuring, deploying, installing, or building images. Covers flakes, modules, secret management, VM management, disk imaging, remote deployment, and common anti-patterns to avoid.
Run technical UI quality checks across accessibility, performance, theming, responsiveness, and anti-patterns, then return a scored action plan.
Expert guidance for writing efficient, correct Active Record queries in Rails 8.1. Use when writing queries, finding records, building scopes, fixing N+1 queries, using where clauses, includes, joins, eager loading, filtering, searching, plucking data, selecting records, or optimizing database queries. Covers where, find, scopes, includes vs preload vs eager_load, joins, pluck, select, calculations, batching, and query anti-patterns.
Semantic Design System Skill for Google Stitch. Generates agent-friendly DESIGN.md files that enforce premium, anti-generic UI standards — strict typography, calibrated color, asymmetric layouts, perpetual micro-motion, and hardware-accelerated performance.
Clarify requirements before implementing. Use when serious doubts arise.
Expert patterns for Salesforce platform development including Lightning Web Components (LWC), Apex triggers and classes, REST/Bulk APIs, Connected Apps, and Salesforce DX with scratch orgs and 2nd generation packages (2GP). Use when: salesforce, sfdc, apex, lwc, lightning web components.