diff --git a/config.example.yaml b/config.example.yaml
index a6e433f..6bdcef4 100644
--- a/config.example.yaml
+++ b/config.example.yaml
@@ -134,3 +134,12 @@ acp:
   event_truncate_field_bytes: 4096
   event_retention_days: 7
   shutdown_grace: 30s
+
+# MCP (Model Context Protocol) module configuration
+mcp:
+  enabled: true
+  public_url: http://localhost:8080/mcp        # 注入到 ACP 子进程的 ACW_MCP_URL
+  system_token_ttl: 24h
+  rate_limit:
+    per_token_per_minute: 100
+    global_per_minute: 1000