diff --git a/codex-rs/code-mode-host/src/grpc/conversions.rs b/codex-rs/code-mode-host/src/grpc/conversions.rs
index 2f4f8b5f0c..a9dcabcab3 100644
--- a/codex-rs/code-mode-host/src/grpc/conversions.rs
+++ b/codex-rs/code-mode-host/src/grpc/conversions.rs
@@ -29,12 +29,6 @@ pub(super) fn session_limits(
 
 pub(super) fn execute_request(request: proto::ExecuteRequest) -> Result<ExecuteRequest, Status> {
     validation::identifier(&request.tool_call_id, "tool call ID")?;
-    if request.enabled_tools.len() > validation::MAX_TOOL_DEFINITIONS {
-        return Err(Status::invalid_argument(format!(
-            "code-mode execution exceeds {} enabled tools",
-            validation::MAX_TOOL_DEFINITIONS
-        )));
-    }
     Ok(ExecuteRequest {
         tool_call_id: request.tool_call_id,
         source: request.source,
diff --git a/codex-rs/code-mode-host/src/grpc/validation.rs b/codex-rs/code-mode-host/src/grpc/validation.rs
index 7326665897..3f0559f988 100644
--- a/codex-rs/code-mode-host/src/grpc/validation.rs
+++ b/codex-rs/code-mode-host/src/grpc/validation.rs
@@ -5,7 +5,6 @@ use uuid::Uuid;
 pub(super) use codex_code_mode_protocol::grpc::MAX_IDENTIFIER_BYTES;
 pub(super) use codex_code_mode_protocol::grpc::MAX_TOOL_ERROR_BYTES;
 pub(super) const MAX_TOOL_FILTERS: usize = 64;
-pub(super) const MAX_TOOL_DEFINITIONS: usize = 1_024;
 
 pub(super) fn identifier(value: &str, field: &str) -> Result<(), Status> {
     if value.is_empty() {