Improve MCP server responses (#34927)

Release Notes:

- N/A

crates/agent_servers/src/claude/tools.rs

@@ -434,10 +434,6 @@ pub struct EditToolParams {
     pub new_text: String,
 }
 
-#[derive(Serialize)]
-#[serde(rename_all = "camelCase")]
-pub struct EditToolResponse;
-
 #[derive(Deserialize, JsonSchema, Debug)]
 pub struct ReadToolParams {
     /// The absolute path to the file to read.
@@ -450,12 +446,6 @@ pub struct ReadToolParams {
     pub limit: Option<u32>,
 }
 
-#[derive(Serialize)]
-#[serde(rename_all = "camelCase")]
-pub struct ReadToolResponse {
-    pub content: String,
-}
-
 #[derive(Deserialize, JsonSchema, Debug)]
 pub struct WriteToolParams {
     /// Absolute path for new file