diff --git a/AGENTS.md b/AGENTS.md
index 448e6d8..ea30f49 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -33,6 +33,7 @@ Use `make help` as the source of truth for available build/test targets and desc
 ## Coding conventions
 
 - Keep changes minimal and focused.
+- Backward compatibility is not a concern unless explicitly requested.
 - Preserve unauthenticated behavior unless explicitly requested.
 - Keep limits/operator controls configurable via config.
 - Maintain write-route protections (allowlist and rate limiting).