diff --git a/CHANGELOG.md b/CHANGELOG.md
index 77e4661c151..85765563e49 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -150,6 +150,7 @@ Docs: https://docs.openclaw.ai
 - Discord/commands: trim overlong slash-command descriptions to Discord's 100-character limit and map rejected deploy indexes from Discord validation payloads back to command names/descriptions, so deploys stop failing on long descriptions and startup logs identify the rejected commands. (#54118) thanks @huntharo
 - Agents/cooldowns: scope rate-limit cooldowns per model so one 429 no longer blocks every model on the same auth profile, replace the exponential 1 min → 1 h escalation with a stepped 30 s / 1 min / 5 min ladder, and surface a user-facing countdown message when all models are rate-limited. (#49834) Thanks @kiranvk-2011.
 - Config/web fetch: allow the documented `tools.web.fetch.maxResponseBytes` setting in runtime schema validation so valid configs no longer fail with unrecognized-key errors. (#53401) Thanks @erhhung.
+- Message tool/buttons: keep the shared `buttons` schema optional in merged tool definitions so plain `action=send` calls stop failing validation when no buttons are provided. (#54418) Thanks @adzendo.
 
 ## 2026.3.23