What problem does it solve? The azure-bootstrap library is pure Python with no npm distribution, so TypeScript/Next.js teams cannot import it directly. This Skill documents the exact HTTP contract a Python azure-bootstrap backend exposes and provides native TypeScript reimplementations of its framework-agnostic primitives, including HMAC action tokens that interoperate byte-for-byte with the Python side. ## Core Features & Use Cases - HTTP Client Integration: Typed Next.js App Router code for x-api-key endpoints (401/429 handling), Graph-style webhook validationToken handshake and notification batches, health probes, and the /api/metrics snapshot shape. - TypeScript Pattern Ports: Drop-in reimplementations of structured JSON logging, AsyncLocalStorage correlation context, mask_* helpers, in-memory counters, TokenBucket rate limiting, and constant-time secret comparison. - Interoperable HMAC Tokens: Issue and verify base64url(json).base64url(hmac_sha256) action tokens in Node.js that a Python backend accepts, enabling cross-language admin flows like DLQ resubmission. - Use Case: A Next.js admin dashboard needs to call a FastAPI backend built on azure-bootstrap and issue a dlq_resubmit token the Python Service Bus consumer can verify; this Skill provides the exact client code and token helper. ## Quick Start Ask the AI to generate a typed Next.js client and webhook route handler for a Python azure-bootstrap backend, including an HMAC action token helper compatible with Python's tokens module.