diff --git a/src/agents/agent-runtime-metadata.ts b/src/agents/agent-runtime-metadata.ts
index 9af8c2d1dde..082ab0f84ea 100644
--- a/src/agents/agent-runtime-metadata.ts
+++ b/src/agents/agent-runtime-metadata.ts
@@ -11,7 +11,7 @@ import {
   type EmbeddedAgentRuntime,
 } from "./pi-embedded-runner/runtime.js";
 
-export type AgentRuntimeMetadata = {
+type AgentRuntimeMetadata = {
   id: string;
   fallback?: "pi" | "none";
   source: "env" | "agent" | "defaults" | "implicit";
diff --git a/src/agents/announce-idempotency.ts b/src/agents/announce-idempotency.ts
index e792b262704..7aac7fbba71 100644
--- a/src/agents/announce-idempotency.ts
+++ b/src/agents/announce-idempotency.ts
@@ -1,4 +1,4 @@
-export type AnnounceIdFromChildRunParams = {
+type AnnounceIdFromChildRunParams = {
   childSessionKey: string;
   childRunId: string;
 };
diff --git a/src/agents/context-window-guard.ts b/src/agents/context-window-guard.ts
index 1cde80ade70..b6c925eb3ec 100644
--- a/src/agents/context-window-guard.ts
+++ b/src/agents/context-window-guard.ts
@@ -7,7 +7,7 @@ export const CONTEXT_WINDOW_WARN_BELOW_TOKENS = 8_000;
 const CONTEXT_WINDOW_HARD_MIN_RATIO = 0.1;
 const CONTEXT_WINDOW_WARN_BELOW_RATIO = 0.2;
 
-export type ContextWindowSource = "model" | "modelsConfig" | "agentContextTokens" | "default";
+type ContextWindowSource = "model" | "modelsConfig" | "agentContextTokens" | "default";
 
 export type ContextWindowInfo = {
   tokens: number;
@@ -62,19 +62,19 @@ export function resolveContextWindowInfo(params: {
   return baseInfo;
 }
 
-export type ContextWindowGuardResult = ContextWindowInfo & {
+type ContextWindowGuardResult = ContextWindowInfo & {
   hardMinTokens: number;
   warnBelowTokens: number;
   shouldWarn: boolean;
   shouldBlock: boolean;
 };
 
-export type ContextWindowGuardThresholds = {
+type ContextWindowGuardThresholds = {
   hardMinTokens: number;
   warnBelowTokens: number;
 };
 
-export type ContextWindowGuardHint = {
+type ContextWindowGuardHint = {
   endpointClass: ReturnType<typeof resolveProviderEndpoint>["endpointClass"];
   likelySelfHosted: boolean;
 };
diff --git a/src/agents/live-model-filter.ts b/src/agents/live-model-filter.ts
index efce653db2b..2cd3e3e5181 100644
--- a/src/agents/live-model-filter.ts
+++ b/src/agents/live-model-filter.ts
@@ -4,7 +4,7 @@ import { normalizeLowercaseStringOrEmpty } from "../shared/string-coerce.js";
 import { liveProvidersShareOwningPlugin } from "./live-provider-owner.js";
 import { normalizeProviderId } from "./provider-id.js";
 
-export type ModelRef = {
+type ModelRef = {
   provider?: string | null;
   id?: string | null;
 };