diff --git a/.objectui-sha b/.objectui-sha
index 3f4fc9b2b2..d38730c67e 100644
--- a/.objectui-sha
+++ b/.objectui-sha
@@ -1 +1 @@
-e30147510995881d51e79e4365203ecec5acb0b1
+8a3b351a5a320e6769a1616e85a6fd05aabd3279
diff --git a/examples/app-showcase/objectstack.config.ts b/examples/app-showcase/objectstack.config.ts
index 005e4ea1b1..632a691dbe 100644
--- a/examples/app-showcase/objectstack.config.ts
+++ b/examples/app-showcase/objectstack.config.ts
@@ -28,7 +28,6 @@ import { allWebhooks } from './src/webhooks/index.js';
 import { allHooks } from './src/hooks/index.js';
 import { allJobs } from './src/jobs/index.js';
 import { allEmails } from './src/emails/index.js';
-import { ShowcaseAssistantAgent, ProjectOpsSkill, allTools } from './src/agents/index.js';
 import { allBooks } from './src/books/index.js';
 import {
   allRoles,
@@ -177,11 +176,6 @@ export default defineStack({
   sharingRules: allSharingRules,
   policies: allPolicies,
 
-  // AI
-  agents: [ShowcaseAssistantAgent],
-  skills: [ProjectOpsSkill],
-  tools: allTools,
-
   // Seed data
   data: ShowcaseSeedData,
 });
diff --git a/examples/app-showcase/package.json b/examples/app-showcase/package.json
index 89d0679044..1a9196bc21 100644
--- a/examples/app-showcase/package.json
+++ b/examples/app-showcase/package.json
@@ -27,7 +27,6 @@
     "@objectstack/connector-slack": "workspace:*",
     "@objectstack/driver-sql": "workspace:*",
     "@objectstack/runtime": "workspace:*",
-    "@objectstack/service-ai": "workspace:*",
     "@objectstack/spec": "workspace:*"
   },
   "devDependencies": {
diff --git a/examples/app-showcase/src/agents/index.ts b/examples/app-showcase/src/agents/index.ts
deleted file mode 100644
index 836980111c..0000000000
--- a/examples/app-showcase/src/agents/index.ts
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
-
-import { defineAgent, defineSkill, defineTool } from '@objectstack/spec';
-
-/** Tool — look up a project by name. */
-export const FindProjectTool = defineTool({
-  name: 'showcase_find_project',
-  label: 'Find Project',
-  description: 'Find a project by name.',
-  parameters: {
-    type: 'object',
-    properties: { name: { type: 'string', description: 'Project name' } },
-    required: ['name'],
-  },
-  requiresConfirmation: false,
-  active: true,
-  builtIn: false,
-});
-
-/** Tool — object-bound summary that needs confirmation before it runs. */
-export const SummarizeProjectTasksTool = defineTool({
-  name: 'showcase_summarize_project_tasks',
-  label: 'Summarize Project Tasks',
-  description: 'Summarise the open tasks for a project, grouped by status.',
-  objectName: 'showcase_task',
-  parameters: {
-    type: 'object',
-    properties: {
-      project_id: { type: 'string', description: 'Project record id' },
-      include_done: { type: 'boolean', description: 'Include completed tasks', default: false },
-    },
-    required: ['project_id'],
-  },
-  requiresConfirmation: true,
-  active: true,
-  builtIn: false,
-});
-
-/** Skill — bundles the project tools. */
-export const ProjectOpsSkill = defineSkill({
-  name: 'showcase_project_ops',
-  label: 'Project Operations',
-  description: 'Tools and prompts for working with projects and tasks.',
-  tools: ['showcase_find_project', 'showcase_summarize_project_tasks'],
-  active: true,
-});
-
-/** Agent — a delivery assistant for the showcase workspace. */
-export const ShowcaseAssistantAgent = defineAgent({
-  name: 'showcase_assistant',
-  label: 'Delivery Assistant',
-  role: 'You are a helpful delivery-operations assistant.',
-  instructions:
-    'Help users find projects, summarise task status, and flag at-risk projects. Ask before making destructive changes.',
-  active: true,
-  visibility: 'global',
-});
-
-export const allTools = [FindProjectTool, SummarizeProjectTasksTool];
diff --git a/examples/app-showcase/src/coverage.ts b/examples/app-showcase/src/coverage.ts
index 921617dc36..e849383297 100644
--- a/examples/app-showcase/src/coverage.ts
+++ b/examples/app-showcase/src/coverage.ts
@@ -68,7 +68,6 @@ export const COVERAGE = {
   capabilityChains: {
     security: 'security/index.ts — roles + permission set (CRUD + FLS + RLS) + sharing + policy',
     automation: 'flows/index.ts (incl. approval nodes) + webhooks/index.ts + jobs/index.ts + emails/index.ts',
-    ai: 'agents/index.ts — agent + tool + skill',
   },
   i18nThemingPortals: {
     coveredBy: 'translations/index.ts (en + zh-CN), themes/index.ts (light + dark), portals/index.ts',
diff --git a/examples/app-showcase/test/seed.test.ts b/examples/app-showcase/test/seed.test.ts
index 6f5040166e..f5709cd524 100644
--- a/examples/app-showcase/test/seed.test.ts
+++ b/examples/app-showcase/test/seed.test.ts
@@ -26,6 +26,6 @@ describe('showcase stack', () => {
     expect((stack.reports ?? []).length).toBe(3);
     expect((stack.flows ?? []).length).toBeGreaterThan(0);
     expect((stack.roles ?? []).length).toBe(3);
-    expect((stack.agents ?? []).length).toBe(1);
+    expect((stack.agents ?? []).length).toBe(0); // AI agents are an enterprise (service-ai) feature; the open showcase ships none
   });
 });
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 3eb6f7c1c0..c85ad601c0 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -143,9 +143,6 @@ importers:
       '@objectstack/runtime':
         specifier: workspace:*
         version: link:../../packages/runtime
-      '@objectstack/service-ai':
-        specifier: workspace:*
-        version: link:../../packages/services/service-ai
       '@objectstack/spec':
         specifier: workspace:*
         version: link:../../packages/spec