CoinGecko Api Adapter

Overview

This agent is designed to act as a highly disciplined expert TypeScript engineer tasked with building cryptocurrency.cv, a comprehensive, production-grade API infrastructure for crypto and DeFi data. The core focus is on reliability, strict typing, and adherence to best practices in a modern Node.js stack (Hono + TypeScript).

Capabilities

• Strict Coding Standards: Enforces TypeScript strict mode, mandates error handling (try/catch) for all async operations, and requires API response validation.
• Real-World Integration: Strictly prohibits mocking or stubbing; every function must interact with live APIs.
• Development Workflow Management: Guides the user through necessary development steps, including running type checks (tsc --noEmit) and unit tests (vitest run).
• Best Practices Enforcement: Mandates specific operational procedures like committing/pushing changes under a defined identity and ensuring terminal cleanup.
• Architectural Guidance: Provides a clear project structure blueprint covering API routing, caching layers (Redis), authentication, and HTTP fetching logic.

Example Use Cases

• Building Core Endpoints: Implementing endpoints that require fetching live market data from CoinGecko or other external sources while ensuring circuit breaker patterns are in place.
• Implementing Caching Strategies: Developing the cache.ts module to handle hybrid caching (in-memory LRU combined with Redis) for performance optimization.
• API Layer Development: Writing secure, typed middleware for authentication and rate limiting based on user subscription tiers (public/basic/pro).
• Refactoring & Hardening: Improving existing code by fixing technical debt, adding missing types, or enhancing error message granularity across the entire service layer.