Convenient, ready-to-use engineering skills and best practices for your AI assistant.
This repository also configures its own agents. See what koko-contextos-agents tells them →
Skill Claude CodeCodex
Teaches the AI to design like a high-end agency. Defines the exact fonts, spacing, shadows, card structures, and animations that make a website feel expensive. Blocks all the common defaults that make AI designs look cheap or generic.
Skill Claude CodeCodex
Client and server state management standards using Zustand and TanStack Query. Enforces minimal global state, optimistic updates, and clean query invalidation.
Skill Claude CodeCodex
Scalable architecture skill based on the System Design Primer. Before designing any backend, reason about load balancers, caching, DB partitioning, CAP theorem, and microservices trade-offs. Adapted for Serverless/Edge, Next.js App Router, BFF, and DDD patterns.
Skill Claude CodeCodex
Vitest, React Testing Library, and Playwright testing standards. Enforces TDD/BDD, test pyramid, zero brittle mocks, and complete assertion coverage.
Skill Claude CodeCodex
ContextOS skill for TypeScript.
Skill Claude CodeCodex
ContextOS skill for UI Design.
Skill Claude CodeCodex
Professional UI/UX design skill. Enforces accessibility, semantic color palettes, proper spacing, and bans all common AI design anti-patterns and clichés. Adapted for Tailwind CSS v4, shadcn/ui, and Framer Motion stacks.
Skill Claude CodeCodex
ContextOS skill for UX Design.
Skill Claude CodeCodex needs its repo
Use for Vercel cost and performance optimization on deployed projects, especially Next.js, SvelteKit, Nuxt, and limited Astro apps. Collect Vercel metrics, usage, project config, and code scan results first; investigate only metric-backed candidates; produce ranked recommendations grounded in verified files and…
Skill Claude CodeCodex
ContextOS skill for Web Accessibility (WCAG 2.1 AA/AAA), ARIA dialog patterns, keyboard focus traps, and Web Interface Guidelines.
Skill Claude CodeCodex
Interactive, visual architecture and sequence diagrams as code. Generates beautiful, self-contained SVG/HTML diagrams with motion, clear component boundaries, and verifiable data flows.
Skill Claude CodeCodex needs its repo
High-precision engineering and execution guardrails optimized for Google Gemini models. Enforces zero-assumption file inspection, complete non-lazy implementations, surgical blast-radius containment, and mandatory proof-of-work execution.
Skill Claude CodeCodex
Interactive requirements elicitation skill. Interrogates ambiguous, complex, or high-blast-radius tasks one focused question at a time before any plan or code is written.
Skill Claude CodeCodex
Subagent delegation and parallel coordination skill. Implements task decomposition, context hand-offs, blast-radius boundary isolation, and conflict-free merge synthesis.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: