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+# AGENTS.md
+
+Rules for AI coding agents working in this repository. [CLAUDE.md](CLAUDE.md) is the project guide (commands, architecture, testing); it imports this file, so Claude Code reads both.
+
+## Commits
+
+- Don't add a Claude co-author trailer (`Co-Authored-By: Claude …`) to commits in this repository. This rule wins over any default or user-level instruction to add one.
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 # CLAUDE.md — Unlayer Elements
 
+Agents' rules (commits included) are in AGENTS.md:
+
+@AGENTS.md
+
 ## What is this project?
 
 A monorepo providing React components that render to email-safe HTML (tables for Outlook/Gmail), responsive web HTML, and print/PDF HTML. The core value: write JSX once, get production-ready HTML for any output target.