diff --git a/codex-rs/core/src/tools/spec.rs b/codex-rs/core/src/tools/spec.rs
index 86f4840a4..341db2476 100644
--- a/codex-rs/core/src/tools/spec.rs
+++ b/codex-rs/core/src/tools/spec.rs
@@ -19,9 +19,6 @@ use codex_tools::build_tool_registry_plan;
 use std::collections::HashMap;
 use std::sync::Arc;
 
-#[cfg(test)]
-pub(crate) use codex_tools::mcp_call_tool_result_output_schema;
-
 pub(crate) fn tool_user_shell_type(user_shell: &Shell) -> ToolUserShellType {
     match user_shell.shell_type {
         ShellType::Zsh => ToolUserShellType::Zsh,
@@ -32,23 +29,6 @@ pub(crate) fn tool_user_shell_type(user_shell: &Shell) -> ToolUserShellType {
     }
 }
 
-/// Builds the tool registry builder while collecting tool specs for later serialization.
-#[cfg(test)]
-pub(crate) fn build_specs(
-    config: &ToolsConfig,
-    mcp_tools: Option<HashMap<String, rmcp::model::Tool>>,
-    app_tools: Option<HashMap<String, ToolInfo>>,
-    dynamic_tools: &[DynamicToolSpec],
-) -> ToolRegistryBuilder {
-    build_specs_with_discoverable_tools(
-        config,
-        mcp_tools,
-        app_tools,
-        /*discoverable_tools*/ None,
-        dynamic_tools,
-    )
-}
-
 pub(crate) fn build_specs_with_discoverable_tools(
     config: &ToolsConfig,
     mcp_tools: Option<HashMap<String, rmcp::model::Tool>>,
diff --git a/codex-rs/core/src/tools/spec_tests.rs b/codex-rs/core/src/tools/spec_tests.rs
index 61cb49467..4e73be350 100644
--- a/codex-rs/core/src/tools/spec_tests.rs
+++ b/codex-rs/core/src/tools/spec_tests.rs
@@ -29,6 +29,7 @@ use codex_tools::ToolsConfig;
 use codex_tools::ToolsConfigParams;
 use codex_tools::UnifiedExecShellMode;
 use codex_tools::ZshForkConfig;
+use codex_tools::mcp_call_tool_result_output_schema;
 use codex_tools::mcp_tool_to_deferred_responses_api_tool;
 use codex_utils_absolute_path::AbsolutePathBuf;
 use pretty_assertions::assert_eq;
@@ -170,6 +171,22 @@ fn model_info_from_models_json(slug: &str) -> ModelInfo {
     with_config_overrides(model, &config)
 }
 
+/// Builds the tool registry builder while collecting tool specs for later serialization.
+fn build_specs(
+    config: &ToolsConfig,
+    mcp_tools: Option<HashMap<String, rmcp::model::Tool>>,
+    app_tools: Option<HashMap<String, ToolInfo>>,
+    dynamic_tools: &[DynamicToolSpec],
+) -> ToolRegistryBuilder {
+    build_specs_with_discoverable_tools(
+        config,
+        mcp_tools,
+        app_tools,
+        /*discoverable_tools*/ None,
+        dynamic_tools,
+    )
+}
+
 #[test]
 fn model_provided_unified_exec_is_blocked_for_windows_sandboxed_policies() {
     let mut model_info = model_info_from_models_json("gpt-5-codex");