diff --git a/AGENTS.md b/AGENTS.md
index b14222d..08b281f 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -34,3 +34,9 @@ does not own mail transport, run lifecycle or grants; those come from the host.
 ```sh
 bun install && bun run check
 ```
+
+## Conventions
+
+- Read `README.md` before changing public behavior.
+- Keep changes focused; update docs and tests alongside code changes.
+- Run `bun run check` (typecheck, lint, format, tests) before declaring work complete.