diff --git a/codex-rs/app-server-protocol/src/protocol.rs b/codex-rs/app-server-protocol/src/protocol.rs
index 721f4ecb46..510506deeb 100644
--- a/codex-rs/app-server-protocol/src/protocol.rs
+++ b/codex-rs/app-server-protocol/src/protocol.rs
@@ -516,7 +516,7 @@ pub struct Tools {
     #[serde(skip_serializing_if = "Option::is_none")]
     pub view_image: Option<bool>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub parallel_read_only: Option<bool>, // todo check this
+    pub parallel_read_only: Option<bool>,
 }
 
 /// MCP representation of a [`codex_core::config_types::SandboxWorkspaceWrite`].
diff --git a/codex-rs/core/src/model_family.rs b/codex-rs/core/src/model_family.rs
index a8adc94b41..4ef60e4a00 100644
--- a/codex-rs/core/src/model_family.rs
+++ b/codex-rs/core/src/model_family.rs
@@ -42,7 +42,7 @@ pub struct ModelFamily {
     // Instructions to use for querying the model
     pub base_instructions: String,
 
-    // todo check if all those configs are necessary...
+    /// If the model supports parallel tool calls for read-only tools.
     pub supports_parallel_read_only_tools: bool,
 }