diff --git a/src/acp/client.ts b/src/acp/client.ts
index f9a60e9a1af..c08b95cdf29 100644
--- a/src/acp/client.ts
+++ b/src/acp/client.ts
@@ -29,7 +29,7 @@ export {
   shouldStripProviderAuthEnvVarsForAcpServer,
 } from "./client-helpers.js";
 
-export type AcpClientOptions = {
+type AcpClientOptions = {
   cwd?: string;
   serverCommand?: string;
   serverArgs?: string[];
@@ -37,7 +37,7 @@ export type AcpClientOptions = {
   verbose?: boolean;
 };
 
-export type AcpClientHandle = {
+type AcpClientHandle = {
   client: ClientSideConnection;
   agent: ChildProcess;
   sessionId: string;
@@ -112,7 +112,7 @@ function printSessionUpdate(notification: SessionNotification): void {
   }
 }
 
-export async function createAcpClient(opts: AcpClientOptions = {}): Promise<AcpClientHandle> {
+async function createAcpClient(opts: AcpClientOptions = {}): Promise<AcpClientHandle> {
   const cwd = opts.cwd ?? process.cwd();
   const verbose = Boolean(opts.verbose);
   const log = verbose ? (msg: string) => console.error(`[acp-client] ${msg}`) : () => {};
diff --git a/src/acp/session-interaction-mode.ts b/src/acp/session-interaction-mode.ts
index d553e9685f7..56d9866090c 100644
--- a/src/acp/session-interaction-mode.ts
+++ b/src/acp/session-interaction-mode.ts
@@ -1,7 +1,7 @@
 import type { SessionEntry } from "../config/sessions/types.js";
 import { normalizeOptionalString } from "../shared/string-coerce.js";
 
-export type AcpSessionInteractionMode = "interactive" | "parent-owned-background";
+type AcpSessionInteractionMode = "interactive" | "parent-owned-background";
 
 type SessionInteractionEntry = Pick<SessionEntry, "spawnedBy" | "parentSessionKey" | "acp">;
 
diff --git a/src/acp/session-mapper.ts b/src/acp/session-mapper.ts
index da30721d22e..356be60d208 100644
--- a/src/acp/session-mapper.ts
+++ b/src/acp/session-mapper.ts
@@ -2,7 +2,7 @@ import type { GatewayClient } from "../gateway/client.js";
 import { readBool, readString } from "./meta.js";
 import type { AcpServerOptions } from "./types.js";
 
-export type AcpSessionMeta = {
+type AcpSessionMeta = {
   sessionKey?: string;
   sessionLabel?: string;
   resetSession?: boolean;