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Found 668 Skills
Systematically improves Largest Contentful Paint (LCP), Interaction to Next Paint (INP), and Cumulative Layout Shift (CLS) with prioritized fixes and verification. Use for "Core Web Vitals", "performance", "LCP", "INP", or "CLS".
Generates comprehensive planning documentation for web application projects, structuring work into context-safe phases with built-in verification criteria. Creates IMPLEMENTATION_PHASES.md, DATABASE_SCHEMA.md, API_ENDPOINTS.md, ARCHITECTURE.md, and other planning docs based on project needs. Optimized for Cloudflare Workers + Vite + React stack. Use when starting new projects, adding major features, or restructuring existing work into manageable phases. Keywords: project planning, planning documentation, IMPLEMENTATION_PHASES.md, DATABASE_SCHEMA.md, API_ENDPOINTS.md, ARCHITECTURE.md, UI_COMPONENTS.md, TESTING.md, AGENTS_CONFIG.md, phased development, context-safe phases, verification criteria, exit criteria, planning docs generator, web app planning, Cloudflare Workers planning, Vite React planning, project structure, project phases, major features planning, new project setup
Manage Workers/KV/R2/D1/Hyperdrive via Cloudflare MCP, perform observability/build troubleshooting/audit/container sandbox operations. Triggers: worker/KV/R2/D1/logs/build/deploy/screenshot/audit/sandbox. Three permission tiers: Diagnose (read-only), Change (write requires confirmation), Super Admin (isolated environment). Write operations must follow read-first, user confirmation, post-execution verification.
Writes an implementation plan with small steps, exact files to touch, and verification commands. Use before making non-trivial changes.
Build or modify plain HTML/CSS/JavaScript (no framework) using modular ES modules (ESM), SRP, minimal global state, and shippable runnable files with lightweight verification. Use for static pages, small UI widgets, vanilla JS refactors, and quick prototypes without React/Vue/Angular.
High-fidelity Optimizer for LaTeX Templates, supporting style parameter alignment, title text alignment, title format comparison (bold), HTML visualization reports, automatic LaTeX repair suggestions, and pixel-level PDF comparison verification for any LaTeX template
Teaches AI agents to recognize and avoid security threats during normal activity. Covers phishing detection, credential protection, domain verification, and social engineering defense. Use when building agents that access email, credential vaults, web browsers, or sensitive data.
Receive and verify FusionAuth webhooks. Use when setting up FusionAuth webhook handlers, debugging JWT signature verification, or handling authentication events like user.create, user.login.success, user.registration.create, or user.delete.
Server-side purchase verification for in-app products and subscriptions using Google Play Developer API. Use when implementing receipt validation in your backend.
Unified planning skill - 4-phase planning workflow, plan verification, and interactive replanning. Triggers on "workflow:plan", "workflow:plan-verify", "workflow:replan".
Debug and verification workflow for runtime-bundle and module-resolution regressions. Use when diagnosing unexpected module inclusions, bundle size regressions, or CI failures related to NEXT_SKIP_ISOLATE, nft.json traces, or runtime bundle selection (module.compiled.js). Covers CI env mirroring, full stack traces via __NEXT_SHOW_IGNORE_LISTED, route trace inspection, and webpack stats diffing.
Comprehensive GTM tracking testing and validation including automated Playwright headless testing, browser console testing, GTM Preview mode validation, and GA4 DebugView verification. Use when users need to "test GTM tracking", "validate dataLayer events", "debug GTM", "check if tracking works", "automated tracking tests", "run tracking tests without opening browser", or troubleshoot tracking issues. Prioritises automated testing over manual when possible.