Agent skills for Codex CLI

When to activate: KPI, metrics, OKR, dashboard, leading indicator, lagging indicator, measurement framework, performance tracking, north…

When to activate: Next.js 14/15, App Router, Server Components, Route Handlers, metadata, caching, middleware, ISR

When to activate: PostgreSQL, JSONB, pg, psql, indexes, CTEs, window functions, partitioning, VACUUM, pg_stat, postgres

When to activate: Prisma ORM, schema.prisma, migrations, Prisma Client, relations, transactions, raw queries, seeding

When to activate: product analytics, funnel analysis, cohort analysis, retention curves, DAU WAU MAU, activation metrics, event tracking…

When to activate: PWA, service worker, offline, cache strategy, Web App Manifest, push notifications, Workbox, install prompt

When to activate: asyncio, async/await, concurrent I/O, aiohttp, anyio, task groups, asyncio patterns

When to activate: pytest, TDD, test fixtures, parametrize, async tests, coverage, mocking, hypothesis

When to activate: React Native, Expo, StyleSheet, navigation, FlatList, Animated, gesture handling, platform-specific code

When to activate: React 19, hooks, RSC, Server Components, Context, portals, error boundaries, performance optimization

When to activate: responsive design, mobile-first, breakpoints, fluid typography, container queries, viewport units, clamp

When to activate: social media strategy, Twitter X LinkedIn Instagram TikTok content, posting cadence, community building, social…

When to activate: Zustand, Jotai, XState, TanStack Query, URL state, Redux, state management, client state, server state

When to activate: async/await, actors, tasks, structured concurrency, MainActor, async sequences in Swift

Deep briefing on one matter — current posture, what's changed, next deadline, open questions, and a risk re-assessment check, ready before…

Compact the current conversation into a handoff document for another agent to pick up.

JVM dependency intelligence via Maven Tools MCP server.

Download videos, audio, or subtitles from YouTube, Bilibili, and other sites using yt-dlp.

MaxQuant mass spectrometry skill for protein identification and quantification

Specify algorithms for Model-Based Design: system specs, architecture specs, implementation plans, test plans.

Sync delta specs from a change to main specs.