When to use Use this skill when creating or updating for a repository. Use it especially when: - the current is long, generic, or stale - agents repeatedly make the same avoidable mistakes - repository workflows changed and agent guidance needs pruning Instructions Treat as a living list of non-discoverable landmines and workflow gotchas , not a codebase overview. Core rule: discoverability filter Before adding any line, ask: Can an agent discover this by reading the repo ( , code, config, scripts, directory tree)? - If yes : do not include it in . - If no , and it materially affects task suc…