diff --git a/.aiox-core/core/registry/registry-loader.js b/.aiox-core/core/registry/registry-loader.js
index 474239fd08..0b41e96cc0 100644
--- a/.aiox-core/core/registry/registry-loader.js
+++ b/.aiox-core/core/registry/registry-loader.js
@@ -14,6 +14,36 @@ const path = require('path');
 
 // Cache configuration
 const CACHE_TTL_MS = 5 * 60 * 1000; // 5 minutes
+const REGISTRY_RELATIVE_PATH = path.join('.aiox-core', 'core', 'registry', 'service-registry.json');
+const PACKAGE_REGISTRY_PATH = path.join(__dirname, 'service-registry.json');
+
+function uniquePaths(paths) {
+  return Array.from(new Set(paths));
+}
+
+function getDefaultRegistryPaths() {
+  return uniquePaths([
+    path.join(process.cwd(), REGISTRY_RELATIVE_PATH),
+    PACKAGE_REGISTRY_PATH,
+  ]);
+}
+
+async function readRegistryFile(paths) {
+  const errors = [];
+
+  for (const registryPath of paths) {
+    try {
+      return {
+        content: await fs.readFile(registryPath, 'utf8'),
+        registryPath,
+      };
+    } catch (error) {
+      errors.push(`${registryPath}: ${error.message}`);
+    }
+  }
+
+  throw new Error(`Failed to load registry: ${errors.join('; ')}`);
+}
 
 /**
  * Service Registry class with caching
@@ -24,6 +54,7 @@ class ServiceRegistry {
     this.cache = null;
     this.cacheTimestamp = 0;
     this.cacheTTL = options.cacheTTL || CACHE_TTL_MS;
+    this.resolvedRegistryPath = null;
 
     // Indexed lookups (built on load)
     this._byId = new Map();
@@ -45,16 +76,15 @@ class ServiceRegistry {
       return this.cache;
     }
 
-    // Determine registry path
-    const registryPath = this.registryPath ||
-      path.join(process.cwd(), '.aiox-core/core/registry/service-registry.json');
+    const registryPaths = this.registryPath ? [this.registryPath] : getDefaultRegistryPaths();
 
     const startTime = Date.now();
 
     try {
-      const content = await fs.readFile(registryPath, 'utf8');
+      const { content, registryPath } = await readRegistryFile(registryPaths);
       this.cache = JSON.parse(content);
       this.cacheTimestamp = now;
+      this.resolvedRegistryPath = registryPath;
 
       // Build indexes
       this._buildIndexes();
@@ -66,6 +96,9 @@ class ServiceRegistry {
 
       return this.cache;
     } catch (error) {
+      if (error.message.startsWith('Failed to load registry:')) {
+        throw error;
+      }
       throw new Error(`Failed to load registry: ${error.message}`);
     }
   }
@@ -276,6 +309,7 @@ class ServiceRegistry {
   clearCache() {
     this.cache = null;
     this.cacheTimestamp = 0;
+    this.resolvedRegistryPath = null;
     this._byId.clear();
     this._byCategory.clear();
     this._byTag.clear();
@@ -290,6 +324,7 @@ class ServiceRegistry {
     return {
       cached: this.cache !== null,
       cacheAge: this.cache ? Date.now() - this.cacheTimestamp : null,
+      registryPath: this.resolvedRegistryPath,
       workerCount: this._byId.size,
       categoryCount: this._byCategory.size,
       tagCount: this._byTag.size,
@@ -326,5 +361,6 @@ async function loadRegistry(registryPath = null) {
 module.exports = {
   ServiceRegistry,
   getRegistry,
+  getDefaultRegistryPaths,
   loadRegistry,
 };
diff --git a/.aiox-core/install-manifest.yaml b/.aiox-core/install-manifest.yaml
index d8fad22563..a1220558e7 100644
--- a/.aiox-core/install-manifest.yaml
+++ b/.aiox-core/install-manifest.yaml
@@ -8,7 +8,7 @@
 # - File types for categorization
 #
 version: 5.1.15
-generated_at: "2026-05-08T05:14:31.637Z"
+generated_at: "2026-05-08T05:30:43.651Z"
 generator: scripts/generate-install-manifest.js
 file_count: 1111
 files:
@@ -1041,9 +1041,9 @@ files:
     type: core
     size: 4786
   - path: core/registry/registry-loader.js
-    hash: sha256:40310943d29e4ecffe8dab1f7eb7388c73d959b7176d5277b066b97ef556a85a
+    hash: sha256:0cf9fa2ca39f7c4ca20043f3c4d7742e40dec7e94f81b706cf9318ebee199975
     type: core
-    size: 7988
+    size: 9006
   - path: core/registry/registry-schema.json
     hash: sha256:f7947c4c4eff858857934f2f17a8f7778f0be25a93e27dac3509f29099115573
     type: core
diff --git a/tests/core/registry-loader.test.js b/tests/core/registry-loader.test.js
index 2b2d52c1c9..d3bceb54ea 100644
--- a/tests/core/registry-loader.test.js
+++ b/tests/core/registry-loader.test.js
@@ -20,7 +20,11 @@ jest.mock('fs', () => ({
 }));
 
 const fs = require('fs').promises;
-const { ServiceRegistry, getRegistry } = require('../../.aiox-core/core/registry/registry-loader');
+const {
+  ServiceRegistry,
+  getDefaultRegistryPaths,
+  getRegistry,
+} = require('../../.aiox-core/core/registry/registry-loader');
 
 // Set timeout for all tests
 jest.setTimeout(30000);
@@ -94,6 +98,7 @@ describe('ServiceRegistry', () => {
 
       expect(reg).toBeDefined();
       expect(reg.registryPath).toBeNull();
+      expect(reg.resolvedRegistryPath).toBeNull();
       expect(reg.cache).toBeNull();
       expect(reg.cacheTimestamp).toBe(0);
     });
@@ -156,6 +161,41 @@ describe('ServiceRegistry', () => {
 
       await expect(registry.load()).rejects.toThrow('Failed to load registry');
     });
+
+    it('should fall back to the package registry when cwd registry is missing', async () => {
+      const cwdSpy = jest
+        .spyOn(process, 'cwd')
+        .mockReturnValue(path.join(path.sep, 'tmp', 'project-without-registry'));
+      const defaultPaths = getDefaultRegistryPaths();
+      const fallbackRegistry = new ServiceRegistry();
+
+      fs.readFile.mockImplementation(async (registryPath) => {
+        if (registryPath === defaultPaths[0]) {
+          throw new Error('File not found');
+        }
+        return JSON.stringify(mockData);
+      });
+
+      try {
+        const data = await fallbackRegistry.load();
+
+        expect(data).toEqual(mockData);
+        expect(fs.readFile).toHaveBeenNthCalledWith(1, defaultPaths[0], 'utf8');
+        expect(fs.readFile).toHaveBeenNthCalledWith(2, defaultPaths[1], 'utf8');
+        expect(fallbackRegistry.resolvedRegistryPath).toBe(defaultPaths[1]);
+      } finally {
+        cwdSpy.mockRestore();
+      }
+    });
+
+    it('should not fall back when an explicit registry path is provided', async () => {
+      fs.readFile.mockRejectedValue(new Error('File not found'));
+
+      await expect(registry.load()).rejects.toThrow('Failed to load registry');
+
+      expect(fs.readFile).toHaveBeenCalledTimes(1);
+      expect(fs.readFile).toHaveBeenCalledWith('/mock/path.json', 'utf8');
+    });
   });
 
   describe('getById', () => {
@@ -354,6 +394,7 @@ describe('ServiceRegistry', () => {
 
       expect(registry.cache).toBeNull();
       expect(registry.cacheTimestamp).toBe(0);
+      expect(registry.resolvedRegistryPath).toBeNull();
       expect(registry._byId.size).toBe(0);
       expect(registry._byCategory.size).toBe(0);
     });
diff --git a/tests/unit/cli.test.js b/tests/unit/cli.test.js
index eef47bd684..bc67a95dbf 100644
--- a/tests/unit/cli.test.js
+++ b/tests/unit/cli.test.js
@@ -5,6 +5,7 @@
 
 const fs = require('fs');
 const path = require('path');
+const os = require('os');
 const { spawn } = require('child_process');
 
 describe('CLI Entry Point', () => {
@@ -99,6 +100,41 @@ describe('CLI Entry Point', () => {
       });
     });
 
+    it('should load packaged worker registry outside a project cwd', async () => {
+      const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'aiox-cli-registry-'));
+      try {
+        const { code, output, errors } = await new Promise((resolve) => {
+          const child = spawn('node', [cliPath, 'workers', 'list', '--count'], {
+            cwd: tempDir,
+            env: process.env,
+          });
+          let output = '';
+          let errors = '';
+
+          child.stdout.on('data', (data) => {
+            output += data.toString();
+          });
+
+          child.stderr.on('data', (data) => {
+            errors += data.toString();
+          });
+
+          child.on('close', (code) => {
+            resolve({ code, output, errors });
+          });
+        });
+
+        expect({ code, errors }).toEqual({
+          code: 0,
+          errors: expect.not.stringMatching(/\b(?:Error|ERROR)\b/),
+        });
+        expect(output).toContain('Total:');
+        expect(output).toContain('workers');
+      } finally {
+        fs.rmSync(tempDir, { recursive: true, force: true });
+      }
+    }, 15000);
+
     it('should error on unknown command', (done) => {
       const child = spawn('node', [cliPath, 'unknown-command']);
       let errors = '';