diff --git a/AGENTS.md b/AGENTS.md
index 42421cc3ff0d..baa0ca7f2174 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -44,12 +44,16 @@ Single package: `cd packages/<name> && yarn test`
 
 ## Commit Attribution
 
-AI commits MUST include:
+AI commits MUST include a `Co-Authored-By` line with the appropriate committer email when known:
 
 ```
-Co-Authored-By: <agent model name> <noreply@anthropic.com>
+Co-Authored-By: <Claude model name> <noreply@anthropic.com>
+Co-Authored-By: <OpenAI/ChatGPT model name> <codex@openai.com>
+Co-Authored-By: <Cursor agent name> <cursoragent@cursor.com>
 ```
 
+Use the Cursor email for Cursor, even when it runs a Claude or OpenAI model. Omit the line only when there is no known committer email address for the agent.
+
 ## Git Workflow
 
 Uses **Git Flow** (see `docs/gitflow.md`).