fix: normalize plugin metadata across shared launch flows

src/management/instance-manager.ts

@@ -58,9 +58,10 @@ class InstanceManager {
       await this.sharedManager.syncAdvancedContinuityArtifacts(instancePath, contextPolicy);
     });
 
+    this.sharedManager.normalizeSharedPluginMetadataPaths(instancePath);
+
     // Sync MCP servers from global ~/.claude.json (unless bare)
     if (!options.bare) {
-      this.sharedManager.normalizeSharedPluginMetadataPaths();
       this.syncMcpServers(instancePath);
     }
 

src/management/shared-manager.ts

@@ -18,6 +18,50 @@ interface SharedItem {
   type: 'directory' | 'file';
 }
 
+export function normalizePluginMetadataPathString(input: string): string {
+  return input.replace(
+    /([\\/])\.ccs\1instances\1[^\\/]+\1/g,
+    (_match, separator: string) => `${separator}.claude${separator}`
+  );
+}
+
+function normalizePluginMetadataValue(value: unknown): { normalized: unknown; changed: boolean } {
+  if (typeof value === 'string') {
+    const normalized = normalizePluginMetadataPathString(value);
+    return { normalized, changed: normalized !== value };
+  }
+
+  if (Array.isArray(value)) {
+    let changed = false;
+    const normalized = value.map((item) => {
+      const result = normalizePluginMetadataValue(item);
+      changed = changed || result.changed;
+      return result.normalized;
+    });
+    return { normalized, changed };
+  }
+
+  if (value && typeof value === 'object') {
+    let changed = false;
+    const normalized = Object.fromEntries(
+      Object.entries(value as Record<string, unknown>).map(([key, item]) => {
+        const result = normalizePluginMetadataValue(item);
+        changed = changed || result.changed;
+        return [key, result.normalized];
+      })
+    );
+    return { normalized, changed };
+  }
+
+  return { normalized: value, changed: false };
+}
+
+export function normalizePluginMetadataContent(original: string): string {
+  const parsed = JSON.parse(original) as unknown;
+  const result = normalizePluginMetadataValue(parsed);
+  return result.changed ? JSON.stringify(result.normalized, null, 2) : original;
+}
+
 /**
  * SharedManager Class
  */
@@ -210,7 +254,7 @@ class SharedManager {
       }
     }
 
-    this.normalizeSharedPluginMetadataPaths();
+    this.normalizeSharedPluginMetadataPaths(instancePath);
   }
 
   /**
@@ -541,9 +585,9 @@ class SharedManager {
   /**
    * Normalize shared plugin metadata files to canonical ~/.claude/ paths.
    */
-  normalizeSharedPluginMetadataPaths(): void {
+  normalizeSharedPluginMetadataPaths(configDir?: string): void {
-    this.normalizePluginRegistryPaths();
+    this.normalizePluginRegistryPaths(configDir);
-    this.normalizeMarketplaceRegistryPaths();
+    this.normalizeMarketplaceRegistryPaths(configDir);
   }
 
   /**
@@ -553,9 +597,10 @@ class SharedManager {
    * This ensures installed_plugins.json is consistent regardless of
    * which CCS instance installed the plugin.
    */
-  normalizePluginRegistryPaths(): void {
+  normalizePluginRegistryPaths(configDir?: string): void {
-    this.normalizePluginMetadataFile(
+    this.normalizePluginMetadataFiles(
-      path.join(this.claudeDir, 'plugins', 'installed_plugins.json'),
+      'installed_plugins.json',
+      configDir,
       'Normalized plugin registry paths',
       'plugin registry'
     );
@@ -568,14 +613,47 @@ class SharedManager {
    * This ensures known_marketplaces.json is consistent regardless of
    * which CCS instance added the marketplace.
    */
-  normalizeMarketplaceRegistryPaths(): void {
+  normalizeMarketplaceRegistryPaths(configDir?: string): void {
-    this.normalizePluginMetadataFile(
+    this.normalizePluginMetadataFiles(
-      path.join(this.claudeDir, 'plugins', 'known_marketplaces.json'),
+      'known_marketplaces.json',
+      configDir,
       'Normalized marketplace registry paths',
       'marketplace registry'
     );
   }
 
+  private normalizePluginMetadataFiles(
+    fileName: string,
+    configDir: string | undefined,
+    successMessage: string,
+    warningLabel: string
+  ): void {
+    const seen = new Set<string>();
+
+    for (const registryPath of this.getPluginMetadataFilePaths(fileName, configDir)) {
+      const dedupeKey = this.resolveCanonicalPath(registryPath);
+      if (seen.has(dedupeKey)) {
+        continue;
+      }
+
+      seen.add(dedupeKey);
+      this.normalizePluginMetadataFile(registryPath, successMessage, warningLabel);
+    }
+  }
+
+  private getPluginMetadataFilePaths(fileName: string, configDir?: string): string[] {
+    const pluginDirs = new Set<string>([
+      path.join(this.claudeDir, 'plugins'),
+      path.join(this.sharedDir, 'plugins'),
+    ]);
+
+    if (configDir && path.resolve(configDir) !== path.resolve(this.claudeDir)) {
+      pluginDirs.add(path.join(configDir, 'plugins'));
+    }
+
+    return [...pluginDirs].map((pluginDir) => path.join(pluginDir, fileName));
+  }
+
   private normalizePluginMetadataFile(
     registryPath: string,
     successMessage: string,
@@ -587,12 +665,9 @@ class SharedManager {
 
     try {
       const original = fs.readFileSync(registryPath, 'utf8');
-
+      const normalized = normalizePluginMetadataContent(original);
-      // Pattern: /.ccs/instances/<instance-name>/ -> /.claude/
-      const normalized = original.replace(/\/\.ccs\/instances\/[^/]+\//g, '/.claude/');
 
       if (normalized !== original) {
-        JSON.parse(normalized);
         fs.writeFileSync(registryPath, normalized, 'utf8');
         console.log(ok(successMessage));
       }

src/shared/claude-extension-setup.ts

@@ -12,6 +12,7 @@ import { CLIPROXY_DEFAULT_PORT } from '../cliproxy/config/port-manager';
 import { getProxyTarget } from '../cliproxy/proxy-target-resolver';
 import { generateCopilotEnv } from '../copilot/copilot-executor';
 import InstanceManager from '../management/instance-manager';
+import SharedManager from '../management/shared-manager';
 import { expandPath } from '../utils/helpers';
 import { getClaudeSettingsPath } from '../utils/claude-config-path';
 import {
@@ -161,6 +162,7 @@ async function resolveExtensionEnv(
       profileType: result.type,
       target: 'claude',
     });
+    new SharedManager().normalizeSharedPluginMetadataPaths(continuity.claudeConfigDir);
     if (continuity.claudeConfigDir) {
       notes.push(`Default profile inherits continuity from account "${continuity.sourceAccount}".`);
       return {
@@ -234,6 +236,9 @@ async function resolveExtensionEnv(
       `Continuity inheritance adds CLAUDE_CONFIG_DIR from account "${continuity.sourceAccount}".`
     );
   }
+
+  new SharedManager().normalizeSharedPluginMetadataPaths(env.CLAUDE_CONFIG_DIR);
+
   if (result.type === 'copilot') {
     warnings.push(
       'copilot-api must stay reachable for this profile to work inside the IDE extension.'

src/utils/shell-executor.ts

@@ -9,6 +9,7 @@ import { ErrorManager } from './error-manager';
 import { getWebSearchHookEnv } from './websearch-manager';
 import { wireChildProcessSignals } from './signal-forwarder';
 import { loadOrCreateUnifiedConfig } from '../config/unified-config-loader';
+import SharedManager from '../management/shared-manager';
 
 /**
  * Strip ANTHROPIC_* env vars from an environment object.
@@ -122,6 +123,14 @@ export function execClaude(
   // (Claude Code v2.1.39+ sets CLAUDECODE to detect nested sessions)
   const env = stripClaudeCodeEnv(mergedEnv);
 
+  if (profileType !== 'account') {
+    try {
+      new SharedManager().normalizeSharedPluginMetadataPaths(env.CLAUDE_CONFIG_DIR);
+    } catch {
+      // Best-effort normalization should never block Claude launch.
+    }
+  }
+
   // propagate key env vars to tmux session so agent team teammates
   // (spawned via tmux split-window) inherit the correct config dir
   if (process.env.TMUX && envVars) {

tests/unit/instance-manager-mcp-sync.test.ts

@@ -7,14 +7,35 @@ import SharedManager from '../../src/management/shared-manager';
 
 describe('InstanceManager MCP sync', () => {
   let tempRoot = '';
+  let originalHome: string | undefined;
   let originalCcsHome: string | undefined;
   let originalCcsDir: string | undefined;
 
+  function writeMarketplaceRegistry(registryPath: string, installLocation: string): void {
+    fs.mkdirSync(path.dirname(registryPath), { recursive: true });
+    fs.writeFileSync(
+      registryPath,
+      JSON.stringify(
+        {
+          'claude-code-plugins': {
+            installLocation,
+          },
+        },
+        null,
+        2
+      ),
+      'utf8'
+    );
+  }
+
   beforeEach(() => {
     tempRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'ccs-instance-mcp-test-'));
+    originalHome = process.env.HOME;
     originalCcsHome = process.env.CCS_HOME;
     originalCcsDir = process.env.CCS_DIR;
 
+    spyOn(os, 'homedir').mockReturnValue(tempRoot);
+    process.env.HOME = tempRoot;
     process.env.CCS_HOME = tempRoot;
     delete process.env.CCS_DIR;
   });
@@ -22,6 +43,9 @@ describe('InstanceManager MCP sync', () => {
   afterEach(() => {
     mock.restore();
 
+    if (originalHome !== undefined) process.env.HOME = originalHome;
+    else delete process.env.HOME;
+
     if (originalCcsHome !== undefined) process.env.CCS_HOME = originalCcsHome;
     else delete process.env.CCS_HOME;
 
@@ -71,7 +95,9 @@ describe('InstanceManager MCP sync', () => {
     const synced = manager.syncMcpServers(instancePath);
     expect(synced).toBe(true);
 
-    const instanceContent = JSON.parse(fs.readFileSync(path.join(instancePath, '.claude.json'), 'utf8'));
+    const instanceContent = JSON.parse(
+      fs.readFileSync(path.join(instancePath, '.claude.json'), 'utf8')
+    );
     expect(instanceContent.otherKey).toBe('keep-me');
     expect(instanceContent.mcpServers).toEqual({
       globalOnly: { command: 'global-cmd' },
@@ -96,45 +122,118 @@ describe('InstanceManager MCP sync', () => {
   });
 
   it('skips shared symlinks and MCP sync for bare instance creation', async () => {
-    const linkSharedSpy = spyOn(SharedManager.prototype, 'linkSharedDirectories').mockImplementation(
+    const linkSharedSpy = spyOn(
-      () => {}
+      SharedManager.prototype,
-    );
+      'linkSharedDirectories'
+    ).mockImplementation(() => {});
     spyOn(SharedManager.prototype, 'syncProjectContext').mockResolvedValue(undefined);
     spyOn(SharedManager.prototype, 'syncAdvancedContinuityArtifacts').mockResolvedValue(undefined);
-    const normalizeSharedPluginMetadataSpy = spyOn(
-      SharedManager.prototype,
-      'normalizeSharedPluginMetadataPaths'
-    ).mockImplementation(() => {});
     const syncMcpSpy = spyOn(InstanceManager.prototype, 'syncMcpServers').mockImplementation(
       () => false
     );
 
     const manager = new InstanceManager();
+    const instancePath = manager.getInstancePath('sandbox');
+    const sharedRegistryPath = path.join(tempRoot, '.claude', 'plugins', 'known_marketplaces.json');
+    writeMarketplaceRegistry(
+      sharedRegistryPath,
+      path.join(
+        tempRoot,
+        '.ccs',
+        'instances',
+        'work',
+        'plugins',
+        'marketplaces',
+        'claude-code-plugins'
+      )
+    );
+
     await manager.ensureInstance('sandbox', { mode: 'isolated' }, { bare: true });
 
+    const normalized = JSON.parse(fs.readFileSync(sharedRegistryPath, 'utf8'));
+
     expect(linkSharedSpy).not.toHaveBeenCalled();
-    expect(normalizeSharedPluginMetadataSpy).not.toHaveBeenCalled();
+    expect(fs.existsSync(instancePath)).toBe(true);
+    expect(normalized['claude-code-plugins'].installLocation).toBe(
+      path.join(tempRoot, '.claude', 'plugins', 'marketplaces', 'claude-code-plugins')
+    );
+    expect(fs.existsSync(path.join(instancePath, 'plugins', 'known_marketplaces.json'))).toBe(
+      false
+    );
     expect(syncMcpSpy).not.toHaveBeenCalled();
   });
 
   it('normalizes shared plugin metadata for existing non-bare instances', async () => {
     spyOn(SharedManager.prototype, 'syncProjectContext').mockResolvedValue(undefined);
     spyOn(SharedManager.prototype, 'syncAdvancedContinuityArtifacts').mockResolvedValue(undefined);
-    const normalizeSharedPluginMetadataSpy = spyOn(
-      SharedManager.prototype,
-      'normalizeSharedPluginMetadataPaths'
-    ).mockImplementation(() => {});
     const syncMcpSpy = spyOn(InstanceManager.prototype, 'syncMcpServers').mockImplementation(
       () => false
     );
 
     const manager = new InstanceManager();
     const instancePath = manager.getInstancePath('work');
-    fs.mkdirSync(instancePath, { recursive: true });
+    writeMarketplaceRegistry(
+      path.join(instancePath, 'plugins', 'known_marketplaces.json'),
+      path.join(
+        tempRoot,
+        '.ccs',
+        'instances',
+        'work',
+        'plugins',
+        'marketplaces',
+        'claude-code-plugins'
+      )
+    );
 
     await manager.ensureInstance('work', { mode: 'isolated' });
 
-    expect(normalizeSharedPluginMetadataSpy).toHaveBeenCalledTimes(1);
+    const normalized = JSON.parse(
+      fs.readFileSync(path.join(instancePath, 'plugins', 'known_marketplaces.json'), 'utf8')
+    );
+    expect(normalized['claude-code-plugins'].installLocation).toBe(
+      path.join(tempRoot, '.claude', 'plugins', 'marketplaces', 'claude-code-plugins')
+    );
+    expect(syncMcpSpy).toHaveBeenCalledWith(instancePath);
+  });
+
+  it('normalizes shared plugin metadata during new non-bare instance creation', async () => {
+    spyOn(SharedManager.prototype, 'syncProjectContext').mockResolvedValue(undefined);
+    spyOn(SharedManager.prototype, 'syncAdvancedContinuityArtifacts').mockResolvedValue(undefined);
+    const syncMcpSpy = spyOn(InstanceManager.prototype, 'syncMcpServers').mockImplementation(
+      () => false
+    );
+
+    const registryPath = path.join(tempRoot, '.claude', 'plugins', 'known_marketplaces.json');
+    writeMarketplaceRegistry(
+      registryPath,
+      path.join(
+        tempRoot,
+        '.ccs',
+        'instances',
+        'work',
+        'plugins',
+        'marketplaces',
+        'claude-code-plugins'
+      )
+    );
+
+    const manager = new InstanceManager();
+    const instancePath = await manager.ensureInstance('work', { mode: 'isolated' });
+
+    const expected = path.join(
+      tempRoot,
+      '.claude',
+      'plugins',
+      'marketplaces',
+      'claude-code-plugins'
+    );
+    const normalizedShared = JSON.parse(fs.readFileSync(registryPath, 'utf8'));
+    const normalizedInstance = JSON.parse(
+      fs.readFileSync(path.join(instancePath, 'plugins', 'known_marketplaces.json'), 'utf8')
+    );
+
+    expect(normalizedShared['claude-code-plugins'].installLocation).toBe(expected);
+    expect(normalizedInstance['claude-code-plugins'].installLocation).toBe(expected);
     expect(syncMcpSpy).toHaveBeenCalledWith(instancePath);
   });
 });

tests/unit/shared-manager.test.ts

@@ -5,11 +5,13 @@ import { describe, it, expect, beforeEach, afterEach, mock, spyOn } from 'bun:te
 import * as fs from 'fs';
 import * as path from 'path';
 import * as os from 'os';
-import SharedManager from '../../src/management/shared-manager';
+import SharedManager, {
+  normalizePluginMetadataPathString,
+} from '../../src/management/shared-manager';
 
 // Test the normalization regex pattern directly
 const normalizePluginPaths = (content: string): string => {
-  return content.replace(/\/\.ccs\/instances\/[^/]+\//g, '/.claude/');
+  return normalizePluginMetadataPathString(content);
 };
 
 describe('SharedManager', () => {
@@ -17,12 +19,14 @@ describe('SharedManager', () => {
   let originalHome: string | undefined;
   let originalCcsHome: string | undefined;
   let originalCcsDir: string | undefined;
+  let originalPlatform: PropertyDescriptor | undefined;
 
   beforeEach(() => {
     tempRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'ccs-shared-manager-test-'));
     originalHome = process.env.HOME;
     originalCcsHome = process.env.CCS_HOME;
     originalCcsDir = process.env.CCS_DIR;
+    originalPlatform = Object.getOwnPropertyDescriptor(process, 'platform');
 
     spyOn(os, 'homedir').mockReturnValue(tempRoot);
     process.env.HOME = tempRoot;
@@ -42,6 +46,10 @@ describe('SharedManager', () => {
     if (originalCcsDir !== undefined) process.env.CCS_DIR = originalCcsDir;
     else delete process.env.CCS_DIR;
 
+    if (originalPlatform) {
+      Object.defineProperty(process, 'platform', originalPlatform);
+    }
+
     if (tempRoot && fs.existsSync(tempRoot)) {
       fs.rmSync(tempRoot, { recursive: true, force: true });
     }
@@ -149,9 +157,8 @@ describe('SharedManager', () => {
       });
 
       it('should handle Windows-style paths (backslash)', () => {
-        // Windows paths use backslashes, regex should not match
         const input = 'C:\\Users\\user\\.ccs\\instances\\ck\\plugins\\cache';
-        expect(normalizePluginPaths(input)).toBe(input);
+        expect(normalizePluginPaths(input)).toBe('C:\\Users\\user\\.claude\\plugins\\cache');
       });
     });
   });
@@ -185,5 +192,81 @@ describe('SharedManager', () => {
         '/home/kai/.claude/plugins/marketplaces/claude-code-plugins'
       );
     });
+
+    it('rewrites Windows-style known_marketplaces.json paths on disk', () => {
+      const pluginsDir = path.join(tempRoot, '.claude', 'plugins');
+      fs.mkdirSync(pluginsDir, { recursive: true });
+
+      const registryPath = path.join(pluginsDir, 'known_marketplaces.json');
+      fs.writeFileSync(
+        registryPath,
+        JSON.stringify(
+          {
+            'claude-code-plugins': {
+              installLocation:
+                'C:\\Users\\kai\\.ccs\\instances\\work\\plugins\\marketplaces\\claude-code-plugins',
+            },
+          },
+          null,
+          2
+        ),
+        'utf8'
+      );
+
+      const manager = new SharedManager();
+      manager.normalizeMarketplaceRegistryPaths();
+
+      const normalized = JSON.parse(fs.readFileSync(registryPath, 'utf8'));
+      expect(normalized['claude-code-plugins'].installLocation).toBe(
+        'C:\\Users\\kai\\.claude\\plugins\\marketplaces\\claude-code-plugins'
+      );
+    });
+
+    it('normalizes copied shared and instance metadata under Windows fallback', () => {
+      Object.defineProperty(process, 'platform', { value: 'win32' });
+      spyOn(fs, 'symlinkSync').mockImplementation(() => {
+        throw Object.assign(new Error('simulated symlink failure'), { code: 'EPERM' });
+      });
+
+      const pluginsDir = path.join(tempRoot, '.claude', 'plugins');
+      fs.mkdirSync(pluginsDir, { recursive: true });
+
+      const registryPath = path.join(pluginsDir, 'known_marketplaces.json');
+      fs.writeFileSync(
+        registryPath,
+        JSON.stringify(
+          {
+            'claude-code-plugins': {
+              installLocation:
+                '/home/kai/.ccs/instances/work/plugins/marketplaces/claude-code-plugins',
+            },
+          },
+          null,
+          2
+        ),
+        'utf8'
+      );
+
+      const manager = new SharedManager();
+      const instancePath = path.join(tempRoot, '.ccs', 'instances', 'personal');
+      fs.mkdirSync(instancePath, { recursive: true });
+      manager.linkSharedDirectories(instancePath);
+
+      const expected = '/home/kai/.claude/plugins/marketplaces/claude-code-plugins';
+      const claudeRegistry = JSON.parse(fs.readFileSync(registryPath, 'utf8'));
+      const sharedRegistry = JSON.parse(
+        fs.readFileSync(
+          path.join(tempRoot, '.ccs', 'shared', 'plugins', 'known_marketplaces.json'),
+          'utf8'
+        )
+      );
+      const instanceRegistry = JSON.parse(
+        fs.readFileSync(path.join(instancePath, 'plugins', 'known_marketplaces.json'), 'utf8')
+      );
+
+      expect(claudeRegistry['claude-code-plugins'].installLocation).toBe(expected);
+      expect(sharedRegistry['claude-code-plugins'].installLocation).toBe(expected);
+      expect(instanceRegistry['claude-code-plugins'].installLocation).toBe(expected);
+    });
   });
 });

tests/unit/utils/claudecode-env-stripping.test.ts

@@ -1,4 +1,14 @@
-import { afterAll, afterEach, beforeAll, beforeEach, describe, expect, it, mock } from 'bun:test';
+import {
+  afterAll,
+  afterEach,
+  beforeAll,
+  beforeEach,
+  describe,
+  expect,
+  it,
+  mock,
+  spyOn,
+} from 'bun:test';
 import { EventEmitter } from 'events';
 import * as childProcess from 'child_process';
 import * as fs from 'fs';
@@ -115,6 +125,7 @@ preferences:
 let execClaude: typeof import('../../../src/utils/shell-executor').execClaude;
 let stripClaudeCodeEnv: typeof import('../../../src/utils/shell-executor').stripClaudeCodeEnv;
 let HeadlessExecutor: typeof import('../../../src/delegation/headless-executor').HeadlessExecutor;
+let SharedManager: typeof import('../../../src/management/shared-manager').default;
 
 beforeAll(async () => {
   registerChildProcessMock();
@@ -123,6 +134,9 @@ beforeAll(async () => {
   execClaude = shellExecutor.execClaude;
   stripClaudeCodeEnv = shellExecutor.stripClaudeCodeEnv;
 
+  const sharedManagerModule = await import('../../../src/management/shared-manager');
+  SharedManager = sharedManagerModule.default;
+
   const headless = await import('../../../src/delegation/headless-executor');
   HeadlessExecutor = headless.HeadlessExecutor;
 });
@@ -242,6 +256,32 @@ describe('CLAUDECODE environment stripping', () => {
     expect(env.DISABLE_AUTOUPDATER).toBeUndefined();
   });
 
+  it('execClaude normalizes shared plugin metadata before default-profile launch', () => {
+    const normalizeSpy = spyOn(
+      SharedManager.prototype,
+      'normalizeSharedPluginMetadataPaths'
+    ).mockImplementation(() => {});
+
+    execClaude('claude', ['--help'], { CCS_PROFILE_TYPE: 'default' });
+
+    expect(normalizeSpy).toHaveBeenCalledWith(undefined);
+  });
+
+  it('execClaude normalizes shared plugin metadata using CLAUDE_CONFIG_DIR when provided', () => {
+    const normalizeSpy = spyOn(
+      SharedManager.prototype,
+      'normalizeSharedPluginMetadataPaths'
+    ).mockImplementation(() => {});
+    const instancePath = path.join(os.tmpdir(), 'ccs-shell-executor-instance');
+
+    execClaude('claude', ['--help'], {
+      CCS_PROFILE_TYPE: 'settings',
+      CLAUDE_CONFIG_DIR: instancePath,
+    });
+
+    expect(normalizeSpy).toHaveBeenCalledWith(instancePath);
+  });
+
   it('headless executor spawn path strips CLAUDECODE before spawn', async () => {
     writeConfigWithAutoUpdatePreference(false);
     process.env.CLAUDECODE = 'nested';

tests/unit/web-server/claude-extension-routes.test.ts

@@ -1,10 +1,21 @@
-import { afterAll, afterEach, beforeAll, beforeEach, describe, expect, it } from 'bun:test';
+import {
+  afterAll,
+  afterEach,
+  beforeAll,
+  beforeEach,
+  describe,
+  expect,
+  it,
+  mock,
+  spyOn,
+} from 'bun:test';
 import express from 'express';
 import * as fs from 'fs';
 import * as os from 'os';
 import * as path from 'path';
 import type { Server } from 'http';
 import claudeExtensionRoutes from '../../../src/web-server/routes/claude-extension-routes';
+import SharedManager from '../../../src/management/shared-manager';
 import { createEmptyUnifiedConfig } from '../../../src/config/unified-config-types';
 import { saveUnifiedConfig } from '../../../src/config/unified-config-loader';
 
@@ -98,6 +109,8 @@ describe('web-server claude-extension-routes', () => {
   });
 
   afterEach(() => {
+    mock.restore();
+
     if (originalCcsHome !== undefined) process.env.CCS_HOME = originalCcsHome;
     else delete process.env.CCS_HOME;
 
@@ -143,6 +156,61 @@ describe('web-server claude-extension-routes', () => {
     expect(payload.sharedSettings.json).toContain('"env"');
   });
 
+  it('normalizes the effective profile CLAUDE_CONFIG_DIR for extension setup', async () => {
+    const explicitConfigDir = path.join(tempHome, '.claude-profiles', 'glm');
+    const glmSettingsPath = path.join(tempHome, '.ccs', 'glm.settings.json');
+    const normalizeSpy = spyOn(
+      SharedManager.prototype,
+      'normalizeSharedPluginMetadataPaths'
+    ).mockImplementation(() => {});
+
+    fs.writeFileSync(
+      glmSettingsPath,
+      JSON.stringify(
+        {
+          env: {
+            ANTHROPIC_BASE_URL: 'https://api.example.test',
+            ANTHROPIC_API_KEY: 'sk-ant-test-123456',
+            ANTHROPIC_MODEL: 'claude-sonnet-4-5',
+            CLAUDE_CONFIG_DIR: explicitConfigDir,
+          },
+        },
+        null,
+        2
+      ) + '\n'
+    );
+
+    const config = createEmptyUnifiedConfig();
+    config.profiles.glm = {
+      type: 'api',
+      settings: glmSettingsPath,
+    };
+    config.accounts.work = {
+      created: '2026-03-15T00:00:00.000Z',
+      last_used: null,
+      context_mode: 'isolated',
+    };
+    config.default = 'work';
+    config.continuity = {
+      inherit_from_account: {
+        glm: 'work',
+      },
+    };
+    saveUnifiedConfig(config);
+
+    const response = await fetch(`${baseUrl}/api/claude-extension/setup?profile=glm&host=vscode`);
+    expect(response.status).toBe(200);
+
+    const payload = (await response.json()) as {
+      ideSettings: { json: string };
+    };
+
+    expect(payload.ideSettings.json).toContain(explicitConfigDir);
+    expect(normalizeSpy.mock.calls.some(([configDir]) => configDir === explicitConfigDir)).toBe(
+      true
+    );
+  });
+
   it('renders Windsurf setup for default account resolution via CLAUDE_CONFIG_DIR', async () => {
     const response = await fetch(
       `${baseUrl}/api/claude-extension/setup?profile=default&host=windsurf`
@@ -179,7 +247,11 @@ describe('web-server claude-extension-routes', () => {
     expect(createResponse.status).toBe(201);
 
     const created = (await createResponse.json()) as {
-      binding: { id: string; effectiveIdeSettingsPath: string; usesDefaultIdeSettingsPath: boolean };
+      binding: {
+        id: string;
+        effectiveIdeSettingsPath: string;
+        usesDefaultIdeSettingsPath: boolean;
+      };
     };
     expect(created.binding.effectiveIdeSettingsPath).toBe(ideSettingsPath);
     expect(created.binding.usesDefaultIdeSettingsPath).toBe(false);
@@ -418,7 +490,10 @@ describe('web-server claude-extension-routes', () => {
     );
     expect(applyResponse.status).toBe(200);
 
-    let ideSettings = JSON.parse(fs.readFileSync(ideSettingsPath, 'utf8')) as Record<string, unknown>;
+    let ideSettings = JSON.parse(fs.readFileSync(ideSettingsPath, 'utf8')) as Record<
+      string,
+      unknown
+    >;
     const appliedEnv = ideSettings['claudeCode.environmentVariables'] as Array<{
       name: string;
       value: string;
@@ -426,7 +501,9 @@ describe('web-server claude-extension-routes', () => {
 
     expect(appliedEnv.some((entry) => entry.name === 'KEEP_ME' && entry.value === '1')).toBe(true);
     expect(
-      appliedEnv.some((entry) => entry.name === 'ANTHROPIC_API_KEY' && entry.value === 'sk-ant-test-123456')
+      appliedEnv.some(
+        (entry) => entry.name === 'ANTHROPIC_API_KEY' && entry.value === 'sk-ant-test-123456'
+      )
     ).toBe(true);
 
     const verifyAppliedResponse = await fetch(
@@ -452,7 +529,9 @@ describe('web-server claude-extension-routes', () => {
     ideSettings = JSON.parse(fs.readFileSync(ideSettingsPath, 'utf8')) as Record<string, unknown>;
     expect(ideSettings['editor.tabSize']).toBe(2);
     expect(ideSettings['claudeCode.disableLoginPrompt']).toBeUndefined();
-    expect(ideSettings['claudeCode.environmentVariables']).toEqual([{ name: 'KEEP_ME', value: '1' }]);
+    expect(ideSettings['claudeCode.environmentVariables']).toEqual([
+      { name: 'KEEP_ME', value: '1' },
+    ]);
 
     const verifyResetResponse = await fetch(
       `${baseUrl}/api/claude-extension/bindings/${created.binding.id}/verify`