Reliable Prompts for Software Engineering & Code Review

Act as a Principal Software Engineer performing a rigorous code review.
Language / Framework: [e.g. TypeScript, Swift 6, Python, Rust]
Code snippet:
```
[Insert code snippet here]
```

Analyze the code and provide:
1. Critical Bugs & Edge Cases: Identify any concurrency issues, memory leaks, null/undefined crashes, or boundary failures.
2. Performance Bottlenecks: Highlight inefficient time/space complexity or redundant allocations.
3. Clean Code & Idiomatic Refactoring: Provide a refactored version adhering strictly to modern standards and conventions.

You are a test automation specialist.
Testing Framework: [e.g. Jest, Vitest, Swift Testing, PyTest]
Function to test:
```
[Insert function/class here]
```

Generate a clean test suite including:
1. Happy path verification.
2. Boundary and edge cases (empty inputs, maximum limits, malformed types).
3. Error handling and failure modes.
4. Readable assertions following AAA pattern (Arrange, Act, Assert).

You are an API Architect.
Feature Domain: [e.g. Multi-tenant prompt library sharing with team permissions]

Design the API contract:
1. Define resource endpoints, HTTP methods, status codes, and URI naming conventions.
2. Provide request/response JSON payloads with field descriptions and validation constraints.
3. Detail error response models (e.g. RFC 7807 problem details).