diff --git a/tests/unit/hooks/websearch-transformer.test.ts b/tests/unit/hooks/websearch-transformer.test.ts
index 42e7e3be..6cc83de4 100644
--- a/tests/unit/hooks/websearch-transformer.test.ts
+++ b/tests/unit/hooks/websearch-transformer.test.ts
@@ -12,6 +12,12 @@ import { tmpdir } from 'node:os';
 import { spawnSync } from 'node:child_process';
 
 const hookPath = join(process.cwd(), 'lib', 'hooks', 'websearch-transformer.cjs');
+
+/**
+ * Neutralise CCS_PROFILE_TYPE so shouldSkipHook() does not short-circuit
+ * when tests run inside a CCS-managed Claude session (where it is 'account').
+ */
+const NEUTRAL_PROFILE_TYPE = '';
 type HookOutput = {
   hookSpecificOutput: {
     additionalContext: string;
@@ -101,7 +107,7 @@ function runHookWithMockedFetch(mode: 'success' | 'empty' | 'non-result' | 'fail
       }),
       env: {
         ...process.env,
-        CCS_PROFILE_TYPE: '',
+        CCS_PROFILE_TYPE: NEUTRAL_PROFILE_TYPE,
         CCS_WEBSEARCH_ENABLED: '1',
         CCS_WEBSEARCH_SKIP: '0',
         CCS_WEBSEARCH_BRAVE: '0',
@@ -353,7 +359,7 @@ describe('websearch-transformer hook helpers', () => {
         }),
         env: {
           ...process.env,
-          CCS_PROFILE_TYPE: '',
+          CCS_PROFILE_TYPE: NEUTRAL_PROFILE_TYPE,
           CCS_HOME: ccsHome,
           CCS_WEBSEARCH_TRACE: '1',
           CCS_WEBSEARCH_TRACE_LAUNCH_ID: 'hook-trace-test',
@@ -430,7 +436,7 @@ describe('websearch-transformer hook helpers', () => {
         }),
         env: {
           ...process.env,
-          CCS_PROFILE_TYPE: '',
+          CCS_PROFILE_TYPE: NEUTRAL_PROFILE_TYPE,
           CCS_HOME: ccsHome,
           CCS_WEBSEARCH_TRACE: '1',
           CCS_WEBSEARCH_TRACE_FILE: disallowedTracePath,
@@ -512,7 +518,7 @@ global.fetch = async (url) => {
         }),
         env: {
           ...process.env,
-          CCS_PROFILE_TYPE: '',
+          CCS_PROFILE_TYPE: NEUTRAL_PROFILE_TYPE,
           CCS_HOME: ccsHome,
           CCS_WEBSEARCH_TRACE: '1',
           CCS_WEBSEARCH_TRACE_LAUNCH_ID: 'quota-fallback-test',
@@ -627,7 +633,7 @@ global.fetch = async (url) => {
         }),
         env: {
           ...process.env,
-          CCS_PROFILE_TYPE: '',
+          CCS_PROFILE_TYPE: NEUTRAL_PROFILE_TYPE,
           CCS_HOME: ccsHome,
           CCS_WEBSEARCH_TRACE: '1',
           CCS_WEBSEARCH_TRACE_LAUNCH_ID: 'cooldown-skip-test',
@@ -728,7 +734,7 @@ global.fetch = async (url) => {
         }),
         env: {
           ...process.env,
-          CCS_PROFILE_TYPE: '',
+          CCS_PROFILE_TYPE: NEUTRAL_PROFILE_TYPE,
           CCS_HOME: ccsHome,
           CCS_WEBSEARCH_TRACE: '1',
           CCS_WEBSEARCH_TRACE_LAUNCH_ID: 'transient-retry-test',
diff --git a/tests/unit/utils/claudecode-env-stripping.test.ts b/tests/unit/utils/claudecode-env-stripping.test.ts
index 4c3e3dd0..117f2608 100644
--- a/tests/unit/utils/claudecode-env-stripping.test.ts
+++ b/tests/unit/utils/claudecode-env-stripping.test.ts
@@ -152,12 +152,17 @@ describe('CLAUDECODE environment stripping', () => {
   beforeEach(() => {
     spawnCalls.length = 0;
     process.env.CCS_QUIET = '1';
+
+    // Save original env values for restoration in afterEach
     originalCcsHome = process.env.CCS_HOME;
     originalCcsClaudePath = process.env.CCS_CLAUDE_PATH;
     originalDisableAutoUpdater = process.env.DISABLE_AUTOUPDATER;
     originalClaudeConfigDir = process.env.CLAUDE_CONFIG_DIR;
+
+    // Clear CCS-managed env vars that leak from host sessions
     delete process.env.DISABLE_AUTOUPDATER;
     delete process.env.CLAUDE_CONFIG_DIR;
+
     baselineSigintListeners = process.listeners('SIGINT');
     baselineSigtermListeners = process.listeners('SIGTERM');
     baselineSighupListeners = process.listeners('SIGHUP');