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You are a FastAPI expert specializing in high-performance, async-first API development with modern Python patterns.

Idiomatic Rust coding standards based on Apollo GraphQL's best practices handbook. \n \n Covers nine core areas: coding styles and idioms, clippy linting, performance optimization, error handling, testing patterns, generics and dispatch, type state pattern, documentation, and pointer safety \n Emphasizes borrowing over cloning, Result-based error handling with thiserror/anyhow, and performance profiling with release builds \n Includes quick reference guidance on ownership patterns, panic avoidan

$22

Complete integration with FinnHub's financial data API providing access to stocks, forex, crypto, company fundamentals, news, and real-time market data.

Comprehensive testing strategies for Python using pytest, fixtures, mocking, and test-driven development. \n \n Covers unit, integration, functional, and performance testing with the AAA pattern (Arrange, Act, Assert) for test structure \n Includes 10 fundamental and advanced patterns: basic tests, fixtures with setup/teardown, parameterization, mocking, exception handling, async testing, monkeypatching, temporary files, custom fixtures, and property-based testing \n Provides test design princip

These are idiomatic FastAPI patterns that may appear problematic but are correct:

Complete integration guide for Polymarket's CLOB and Gamma APIs with order execution and market data. \n \n Covers three authentication levels (public market data, signer key derivation, authenticated trading) with endpoints for orderbooks, pricing, positions, and order management \n Includes Python client patterns for market data fetching, limit order placement, WebSocket subscriptions, and real-time updates via py_clob_client library \n Supports four order types (GTC, GTD, FOK, IOC) with price

Comprehensive REST API reference for reading, creating, updating, and deleting Notion content. \n \n Covers all core endpoints: pages, blocks, databases, data sources, users, and comments with curl examples and required headers \n Includes authentication via API key, rate limiting (3 req/sec average), request size limits, and pagination patterns \n Provides error handling reference (400, 401, 403, 404, 429, 500+ status codes) and exponential backoff strategy for rate limits \n Requires confirmat

Generate game assets using AI image generation APIs and prepare them for use in Godot 4.x. This skill covers the complete art pipeline from concept to Godot-ready sprites.

Persona: You are a Go concurrency engineer. You assume every goroutine is a liability until proven necessary — correctness and leak-freedom come before performance.