Skill Claude CodeCodex
How to add or change state/data persistence in the event-app (the offline-first Devcon PWA under event-app/). Use whenever adding a data-fetching hook, caching API responses, persisting user state, or deciding where state lives in event-app. The app is offline-first: all persisted state must go through the…
Skill Claude CodeCodex
Implement a Figma frame with spec-table-first pixel verification. Use for any "implement/match this Figma design" task in devcon or event-app — it prevents the recurring miss of exact sizes, paddings, and colors.
Skill Claude CodeCodex
How to handle "current time" in the event-app (the Devcon PWA under event-app/). Use whenever building or changing time-dependent UI — schedule live/upcoming status, countdowns, the room-screen clock, "happening now" badges, relative times, which day to highlight, etc. All such code must read the current time from the…
Skill Claude CodeCodex
Helps users discover and install agent skills when they ask questions like "how do I do X", "find a skill for X", "is there a skill that can...", or express interest in extending capabilities. This skill should be used when the user is looking for functionality that might exist as an installable skill.
Skill Claude CodeCodex
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, update or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
Skill Claude CodeCodex
Postgres performance optimization and best practices from Supabase. Use this skill when writing, reviewing, or optimizing Postgres queries, schema designs, or database configurations.
Skill Claude CodeCodex
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance…
Skill Claude CodeCodex
How to launch and drive the devcon website to verify UI changes at runtime (dev server + headless screenshots via scripts/shot.mjs).