Developer Tools & Repos Agent Skills for Codex CLI

When to activate: dataclasses, attrs, msgspec, frozen dataclasses, slots, inheritance, value objects

Set up a Python virtual environment and install Reflex.

When to activate: event-driven architecture, domain events, event sourcing, Kafka, RabbitMQ, NATS

Guidance for structuring a Python/FastAPI backend into layers (routers/services/repositories) and feature-first modules so it stays easy…

When to activate: Strawberry, Graphene, GraphQL, subscriptions, dataloaders, N+1, schema-first design

When to activate: gRPC, protobuf, grpcio, async gRPC, streaming, service definitions, interceptors

MANDATORY FIRST STEP for Shutterstock API Explorer Python SDK work in a Python project — load this BEFORE you write any code; Python SDK…

Master Python from fundamentals to advanced OOP, async programming, and web frameworks.

When to activate: Python type hints, TypeVar, Generic, Protocol, TypedDict, Literal, typing extensions, mypy

When to activate: WebSockets, real-time, FastAPI WebSocket, websockets library, broadcasting, connection management

When to activate: Quarkus, native image, CDI, Panache, reactive, RESTEasy, GraalVM, health checks, Quarkus config

Simulates and manages QUIC network connection migration to ensure seamless endpoint switching without session interruption.

When to activate: Rails, MVC conventions, ActiveRecord associations, service objects, strong parameters, concerns, callbacks, form…

Ramp reference architecture \u2014 corporate card and expense management\

Build a verified, idempotent Ramp webhook receiver with raw-body HMAC validation, fast acknowledgement, durable processing, and…

Design spec with 98 rules for building CLI tools that AI agents can safely use.

Tools are how AI agents interact with the world.

Build AI phone agents with AgentPhone API.

Expert in building products that wrap AI APIs (OpenAI, Anthropic, etc. ) into focused tools people will pay for.

Expert patterns for Algolia search implementation, indexing strategies, React InstantSearch, and relevance tuning

Modern Angular (v20+) expert with deep knowledge of Signals, Standalone Components, Zoneless applications, SSR/Hydration, and reactive…