diff --git a/src/agents/subagent-list.ts b/src/agents/subagent-list.ts
index 6ded31eb2a6..74cbe4cc318 100644
--- a/src/agents/subagent-list.ts
+++ b/src/agents/subagent-list.ts
@@ -29,7 +29,7 @@ import {
   shouldKeepSubagentRunChildLink,
 } from "./subagent-run-liveness.js";
 
-export type SubagentListItem = {
+type SubagentListItem = {
   index: number;
   line: string;
   runId: string;
diff --git a/src/agents/tool-display-common.ts b/src/agents/tool-display-common.ts
index c8123e20a2f..2c349fe4cfd 100644
--- a/src/agents/tool-display-common.ts
+++ b/src/agents/tool-display-common.ts
@@ -17,7 +17,7 @@ export type ToolDisplaySpec = {
   actions?: Record<string, ToolDisplayActionSpec>;
 };
 
-export type CoerceDisplayValueOptions = {
+type CoerceDisplayValueOptions = {
   includeFalse?: boolean;
   includeZero?: boolean;
   includeNonFinite?: boolean;
diff --git a/src/agents/tool-display.ts b/src/agents/tool-display.ts
index 3d32a8f296b..248f581fa9f 100644
--- a/src/agents/tool-display.ts
+++ b/src/agents/tool-display.ts
@@ -10,7 +10,7 @@ import {
 } from "./tool-display-common.js";
 import { TOOL_DISPLAY_CONFIG } from "./tool-display-config.js";
 
-export type ToolDisplay = {
+type ToolDisplay = {
   name: string;
   emoji: string;
   title: string;