diff --git a/internal/config/config.go b/internal/config/config.go
index fd76e4f8a8639ececc8e8452c75bc6178e4b8cff..1d0aba7522948263cfac8aa3ef185749cfcc425f 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -350,7 +350,7 @@ type Agent struct {
 }
 
 type Tools struct {
-	Ls ToolLs `json:"ls"`
+	Ls ToolLs `json:"ls,omitzero"`
 }
 
 type ToolLs struct {
@@ -383,7 +383,7 @@ type Config struct {
 
 	Permissions *Permissions `json:"permissions,omitempty" jsonschema:"description=Permission settings for tool usage"`
 
-	Tools Tools `json:"tools" jsonschema:"description=Tool configurations"`
+	Tools Tools `json:"tools,omitzero" jsonschema:"description=Tool configurations"`
 
 	Agents map[string]Agent `json:"-"`