Conventions Pinning — Writing a Style Guide Your Coder-Agent Will Actually Read One line: a conventions file is the system prompt of your codebase . Treat it like a system prompt, not like a README. Anti-patterns: writing prose, narrating history, marketing the project. Patterns: command-first, verifiable, "prefer X over Y", < 200 lines. --- 1. 何时激活 (When to Activate) 1.1 Direct triggers - The user (human or upstream agent) asks "how do I make Claude/Cursor/Cline/Aider respect our style?". - The same correction has been typed in chat ≥ 2 times this week ("use httpx not requests", "add type hi…