diff --git a/src/agents/cli-runner/bundle-mcp.test-support.ts b/src/agents/cli-runner/bundle-mcp.test-support.ts
index c9e9a53e3f2..a1c95764ccc 100644
--- a/src/agents/cli-runner/bundle-mcp.test-support.ts
+++ b/src/agents/cli-runner/bundle-mcp.test-support.ts
@@ -42,7 +42,7 @@ export function setupCliBundleMcpTestHarness(): void {
   });
 }
 
-export function createEnabledBundleProbeConfig(): OpenClawConfig {
+function createEnabledBundleProbeConfig(): OpenClawConfig {
   return {
     plugins: {
       entries: {
diff --git a/src/agents/pi-embedded-runner/model.test-harness.ts b/src/agents/pi-embedded-runner/model.test-harness.ts
index 925d885ed0c..e94cef1cf69 100644
--- a/src/agents/pi-embedded-runner/model.test-harness.ts
+++ b/src/agents/pi-embedded-runner/model.test-harness.ts
@@ -87,7 +87,7 @@ export function buildOpenAICodexForwardCompatExpectation(
   };
 }
 
-export const GOOGLE_GEMINI_CLI_PRO_TEMPLATE_MODEL = {
+const GOOGLE_GEMINI_CLI_PRO_TEMPLATE_MODEL = {
   id: "gemini-3-pro-preview",
   name: "Gemini 3 Pro Preview (Cloud Code Assist)",
   provider: "google-gemini-cli",
@@ -100,7 +100,7 @@ export const GOOGLE_GEMINI_CLI_PRO_TEMPLATE_MODEL = {
   maxTokens: 64000,
 };
 
-export const GOOGLE_GEMINI_CLI_FLASH_TEMPLATE_MODEL = {
+const GOOGLE_GEMINI_CLI_FLASH_TEMPLATE_MODEL = {
   id: "gemini-3-flash-preview",
   name: "Gemini 3 Flash Preview (Cloud Code Assist)",
   provider: "google-gemini-cli",
diff --git a/src/agents/pi-embedded-runner/run.overflow-compaction.fixture.ts b/src/agents/pi-embedded-runner/run.overflow-compaction.fixture.ts
index da7e077ff67..d9464c7289b 100644
--- a/src/agents/pi-embedded-runner/run.overflow-compaction.fixture.ts
+++ b/src/agents/pi-embedded-runner/run.overflow-compaction.fixture.ts
@@ -1,7 +1,7 @@
 import { buildAttemptReplayMetadata } from "./run/incomplete-turn.js";
 import type { EmbeddedRunAttemptResult } from "./run/types.js";
 
-export const DEFAULT_OVERFLOW_ERROR_MESSAGE =
+const DEFAULT_OVERFLOW_ERROR_MESSAGE =
   "request_too_large: Request size exceeds model context window";
 
 export function makeOverflowError(message: string = DEFAULT_OVERFLOW_ERROR_MESSAGE): Error {
diff --git a/src/agents/sandbox/fs-bridge.test-helpers.ts b/src/agents/sandbox/fs-bridge.test-helpers.ts
index ffb339f7d45..6de9e890301 100644
--- a/src/agents/sandbox/fs-bridge.test-helpers.ts
+++ b/src/agents/sandbox/fs-bridge.test-helpers.ts
@@ -171,7 +171,7 @@ export async function withTempDir<T>(
   }
 }
 
-export function installDockerReadMock(params?: { canonicalPath?: string }) {
+function installDockerReadMock(params?: { canonicalPath?: string }) {
   const canonicalPath = params?.canonicalPath;
   mockedExecDockerRaw.mockImplementation(async (args) => {
     const script = getDockerScript(args);
diff --git a/src/agents/test-helpers/claude-api-error-fixture.ts b/src/agents/test-helpers/claude-api-error-fixture.ts
index 2fa1f0fe9d6..313ae9c8c4b 100644
--- a/src/agents/test-helpers/claude-api-error-fixture.ts
+++ b/src/agents/test-helpers/claude-api-error-fixture.ts
@@ -1,4 +1,4 @@
-export const CLAUDE_API_ERROR_MESSAGE =
+const CLAUDE_API_ERROR_MESSAGE =
   "Third-party apps now draw from your extra usage, not your plan limits. We've added a $200 credit to get you started. Claim it at claude.ai/settings/usage and keep going.";
 
 export function createClaudeApiErrorFixture() {
diff --git a/src/agents/test-helpers/unsafe-mounted-sandbox.ts b/src/agents/test-helpers/unsafe-mounted-sandbox.ts
index b2764e0e377..70d651d3bb2 100644
--- a/src/agents/test-helpers/unsafe-mounted-sandbox.ts
+++ b/src/agents/test-helpers/unsafe-mounted-sandbox.ts
@@ -6,7 +6,7 @@ import type { SandboxFsBridge, SandboxResolvedPath } from "../sandbox/fs-bridge.
 import { createSandboxFsBridgeFromResolver } from "./host-sandbox-fs-bridge.js";
 import { createPiToolsSandboxContext } from "./pi-tools-sandbox-context.js";
 
-export function createUnsafeMountedBridge(params: {
+function createUnsafeMountedBridge(params: {
   root: string;
   agentHostRoot: string;
   workspaceContainerRoot?: string;