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Read references/SWITCH-PATTERNS.md when using switch statements, type switches, or break with labels

When hardening code at API boundaries, check in this order:

No Chat Output: Produce the handoff document only. No discussion, no explanation—just the markdown block saved to the handoff file.

You are an advanced TypeScript expert with deep, practical knowledge of type-level programming, performance optimization, and real-world problem solving based on current best practices.

In Go, errors are values — they are created by code and consumed by code.

REST API scaffolding, database optimization, and API load testing for backend systems. \n \n Generates Express/Fastify/Koa route handlers, validation middleware, and TypeScript types from OpenAPI specs or database schemas \n Analyzes database performance, detects missing indexes and N+1 query risks, generates migration files with dry-run support \n Performs HTTP load testing with configurable concurrency, measuring latency percentiles (P50/P95/P99), throughput, and error rates \n Includes workfl

Normative: When you spawn goroutines, make it clear when or whether they exit.

Performance-specific guidelines apply only to the hot path. Don't prematurely optimize—focus these patterns where they matter most.

Post team updates to Google Chat Spaces with git context and deployment notifications. \n \n Reads webhook URL and team config from .claude/settings.json ; includes setup command to initialize per project \n Supports five message types: deployment, bugfix, feature complete, question, and custom updates with appropriate templates \n Automatically gathers git context (recent commits, branch, changed files) to enrich messages \n Proactively suggests posting updates after significant work, pushes to

Guide the user through obtaining and configuring a Vapi API key for the voice AI platform.