yegor256/prompt

Provides prescriptive coding and testing guidelines as a plaintext prompt usable with Claude or other LLMs, covering design patterns (DDD, Elegant Objects), immutability requirements, single-responsibility methods, and test structure (one assertion per test, no mocks). The prompt enforces architectural constraints like final classes without inheritance, immutable objects, and interface-first design, alongside testing best practices for resource cleanup, concurrency, and fixture management. Designed to be embedded in Claude's config file and applied across multiple projects for consistent coding standards.

135 stars.