diff --git a/packages/objectql/src/plugin.ts b/packages/objectql/src/plugin.ts
index c0e7e3e4c..4fef7aabe 100644
--- a/packages/objectql/src/plugin.ts
+++ b/packages/objectql/src/plugin.ts
@@ -129,12 +129,16 @@ export class ObjectQLPlugin implements Plugin {
     // object registered by plugins (e.g., sys_user from plugin-auth).
     await this.syncRegisteredSchemas(ctx);
 
+    // Bridge all SchemaRegistry objects to metadata service
+    // This ensures AI tools and other IMetadataService consumers can see all objects
+    await this.bridgeObjectsToMetadataService(ctx);
+
     // Register built-in audit hooks
     this.registerAuditHooks(ctx);
 
     // Register tenant isolation middleware
     this.registerTenantMiddleware(ctx);
-    
+
     ctx.logger.info('ObjectQL engine started', {
         driversRegistered: this.ql?.['drivers']?.size || 0,
         objectsRegistered: this.ql?.registry?.getAllObjects?.()?.length || 0
@@ -387,12 +391,12 @@ export class ObjectQLPlugin implements Plugin {
       return;
     }
 
-    // Phase 2: DB hydration
+    // Phase 2: DB hydration (loads into SchemaRegistry)
     try {
       const { loaded, errors } = await protocol.loadMetaFromDb();
 
       if (loaded > 0 || errors > 0) {
-        ctx.logger.info('Metadata restored from database', { loaded, errors });
+        ctx.logger.info('Metadata restored from database to SchemaRegistry', { loaded, errors });
       } else {
         ctx.logger.debug('No persisted metadata found in database');
       }
@@ -404,6 +408,63 @@ export class ObjectQLPlugin implements Plugin {
     }
   }
 
+  /**
+   * Bridge all SchemaRegistry objects to the metadata service.
+   *
+   * This ensures objects registered by plugins and loaded from sys_metadata
+   * are visible to AI tools and other consumers that query IMetadataService.
+   *
+   * Runs after both restoreMetadataFromDb() and syncRegisteredSchemas() to
+   * catch all objects in the SchemaRegistry regardless of their source.
+   */
+  private async bridgeObjectsToMetadataService(ctx: PluginContext): Promise<void> {
+    try {
+      const metadataService = ctx.getService<any>('metadata');
+      if (!metadataService || typeof metadataService.register !== 'function') {
+        ctx.logger.debug('Metadata service unavailable for bridging, skipping');
+        return;
+      }
+
+      if (!this.ql?.registry) {
+        ctx.logger.debug('SchemaRegistry unavailable for bridging, skipping');
+        return;
+      }
+
+      const objects = this.ql.registry.getAllObjects();
+      let bridged = 0;
+
+      for (const obj of objects) {
+        try {
+          // Check if object is already in metadata service to avoid duplicates
+          const existing = await metadataService.getObject(obj.name);
+          if (!existing) {
+            // Register object that exists in SchemaRegistry but not in metadata service
+            await metadataService.register('object', obj.name, obj);
+            bridged++;
+          }
+        } catch (e: unknown) {
+          ctx.logger.debug('Failed to bridge object to metadata service', {
+            object: obj.name,
+            error: e instanceof Error ? e.message : String(e),
+          });
+        }
+      }
+
+      if (bridged > 0) {
+        ctx.logger.info('Bridged objects from SchemaRegistry to metadata service', {
+          count: bridged,
+          total: objects.length
+        });
+      } else {
+        ctx.logger.debug('No objects needed bridging (all already in metadata service)');
+      }
+    } catch (e: unknown) {
+      ctx.logger.debug('Failed to bridge objects to metadata service', {
+        error: e instanceof Error ? e.message : String(e),
+      });
+    }
+  }
+
   /**
    * Load metadata from external metadata service into ObjectQL registry
    * This enables ObjectQL to use file-based or remote metadata