[Agent Builder] add the agent-builder-platform plugin (elastic#244164)

## Summary

Fix elastic/search-team#11943

- Create a plugin for platform tools and attachment types to dissociate
the "framework" from the "platform stuff", to avoid cyclic dependencies
issues.
- Move tools and attachment types from `onechat` to
`agent-builder-platform`

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>

Author: pgayvallet

.github/CODEOWNERS

@@ -1020,6 +1020,7 @@ x-pack/platform/plugins/private/translations @elastic/kibana-localization
 x-pack/platform/plugins/private/upgrade_assistant @elastic/kibana-management
 x-pack/platform/plugins/private/watcher @elastic/kibana-management
 x-pack/platform/plugins/shared/actions @elastic/response-ops
+x-pack/platform/plugins/shared/agent_builder_platform @elastic/workchat-eng
 x-pack/platform/plugins/shared/ai_infra/llm_tasks @elastic/appex-ai-infra
 x-pack/platform/plugins/shared/ai_infra/product_doc_base @elastic/appex-ai-infra
 x-pack/platform/plugins/shared/aiops @elastic/ml-ui

docs/extend/plugin-list.md

@@ -111,6 +111,7 @@ mapped_pages:
 | Name | Description |
 | --- | --- |
 | [actions](https://github.com/elastic/kibana/blob/main/x-pack/platform/plugins/shared/actions/README.md) | The Kibana actions plugin provides a framework to create executable actions. You can: |
+| [agentBuilderPlatform](https://github.com/elastic/kibana/blob/main/x-pack/platform/plugins/shared/agent_builder_platform/README.md) | Contains the platform-owned agent builder entities |
 | [aiops](https://github.com/elastic/kibana/blob/main/x-pack/platform/plugins/shared/aiops/README.md) | The plugin provides APIs and components for AIOps features, including the “Log rate analysis” UI, maintained by the ML team. |
 | [alerting](https://github.com/elastic/kibana/blob/main/x-pack/platform/plugins/shared/alerting/README.md) | The Kibana Alerting plugin provides a common place to set up rules. You can: |
 | [apm](https://github.com/elastic/kibana/blob/main/x-pack/solutions/observability/plugins/apm/readme.md) | This plugin provides access to App Monitoring features provided by Elastic. It allows you to monitor your software services and applications in real-time; visualize detailed performance information on your services, identify and analyze errors, and monitor host-level and APM agent-specific metrics like JVM and Go runtime metrics. |

package.json

@@ -171,6 +171,7 @@
     "@kbn/actions-simulators-plugin": "link:x-pack/platform/test/alerting_api_integration/common/plugins/actions_simulators",
     "@kbn/actions-types": "link:src/platform/packages/shared/kbn-actions-types",
     "@kbn/advanced-settings-plugin": "link:src/platform/plugins/private/advanced_settings",
+    "@kbn/agent-builder-platform-plugin": "link:x-pack/platform/plugins/shared/agent_builder_platform",
     "@kbn/ai-assistant": "link:x-pack/platform/packages/shared/kbn-ai-assistant",
     "@kbn/ai-assistant-common": "link:x-pack/platform/packages/shared/ai-assistant/common",
     "@kbn/ai-assistant-connector-selector-action": "link:x-pack/platform/packages/shared/ai-assistant/ai-assistant-connector-selector-action",

tsconfig.base.json

@@ -14,6 +14,8 @@
       "@kbn/actions-types/*": ["src/platform/packages/shared/kbn-actions-types/*"],
       "@kbn/advanced-settings-plugin": ["src/platform/plugins/private/advanced_settings"],
       "@kbn/advanced-settings-plugin/*": ["src/platform/plugins/private/advanced_settings/*"],
+      "@kbn/agent-builder-platform-plugin": ["x-pack/platform/plugins/shared/agent_builder_platform"],
+      "@kbn/agent-builder-platform-plugin/*": ["x-pack/platform/plugins/shared/agent_builder_platform/*"],
       "@kbn/ai-assistant": ["x-pack/platform/packages/shared/kbn-ai-assistant"],
       "@kbn/ai-assistant/*": ["x-pack/platform/packages/shared/kbn-ai-assistant/*"],
       "@kbn/ai-assistant-common": ["x-pack/platform/packages/shared/ai-assistant/common"],

x-pack/platform/plugins/shared/agent_builder_platform/README.md

@@ -0,0 +1,5 @@
+# agentBuilderPlatform plugin
+
+Contains the platform-owned agent builder entities
+- tools
+- attachment types

x-pack/platform/plugins/shared/agent_builder_platform/jest.config.js

@@ -0,0 +1,18 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+module.exports = {
+  preset: '@kbn/test',
+  rootDir: '../../../../..',
+  roots: ['<rootDir>/x-pack/platform/plugins/shared/agent_builder_platform/server'],
+  setupFiles: [],
+  collectCoverage: true,
+  collectCoverageFrom: [
+    '<rootDir>/x-pack/platform/plugins/shared/agent_builder_platform/{public,server,common}/**/*.{js,ts,tsx}',
+  ],
+  coverageReporters: ['html'],
+};

x-pack/platform/plugins/shared/agent_builder_platform/kibana.jsonc

@@ -0,0 +1,17 @@
+{
+  "type": "plugin",
+  "id": "@kbn/agent-builder-platform-plugin",
+  "owner": "@elastic/workchat-eng",
+  "group": "platform",
+  "visibility": "shared",
+  "plugin": {
+    "id": "agentBuilderPlatform",
+    "server": true,
+    "browser": false,
+    "configPath": ["xpack", "agentBuilderPlatform"],
+    "requiredPlugins": ["onechat"],
+    "requiredBundles": [],
+    "optionalPlugins": ["workflowsManagement"],
+    "extraPublicDirs": []
+  }
+}

x-pack/platform/plugins/shared/agent_builder_platform/moon.yml

@@ -0,0 +1,60 @@
+# This file is generated by the @kbn/moon package. Any manual edits will be erased!
+#  To extend this, write your extensions/overrides to 'moon.extend.yml'
+#  then regenerate this file with: 'node scripts/regenerate_moon_projects.js --update --filter @kbn/agent-builder-platform-plugin'
+
+$schema: https://moonrepo.dev/schemas/project.json
+id: '@kbn/agent-builder-platform-plugin'
+type: unknown
+owners:
+  defaultOwner: '@elastic/workchat-eng'
+toolchain:
+  default: node
+language: typescript
+project:
+  name: '@kbn/agent-builder-platform-plugin'
+  description: Moon project for @kbn/agent-builder-platform-plugin
+  channel: ''
+  owner: '@elastic/workchat-eng'
+  metadata:
+    sourceRoot: x-pack/platform/plugins/shared/agent_builder_platform
+dependsOn:
+  - '@kbn/core'
+  - '@kbn/logging'
+  - '@kbn/config-schema'
+  - '@kbn/workflows-management-plugin'
+  - '@kbn/onechat-server'
+  - '@kbn/lens-embeddable-utils'
+  - '@kbn/onechat-genai-utils'
+  - '@kbn/core-elasticsearch-server'
+  - '@kbn/onechat-common'
+  - '@kbn/zod'
+  - '@kbn/management-settings-ids'
+  - '@kbn/onechat-plugin'
+  - '@kbn/core-lifecycle-server'
+  - '@kbn/esql-validation-autocomplete'
+tags:
+  - plugin
+  - prod
+  - group-platform
+  - shared
+  - jest-unit-tests
+fileGroups:
+  src:
+    - common/**/*
+    - public/**/*
+    - server/**/*
+    - '!target/**/*'
+    - '!.storybook/**/*.js'
+tasks:
+  jest:
+    args:
+      - '--config'
+      - $projectRoot/jest.config.js
+    inputs:
+      - '@group(src)'
+  jestCI:
+    args:
+      - '--config'
+      - $projectRoot/jest.config.js
+    inputs:
+      - '@group(src)'

…services/attachments/definitions/esql.ts …platform/server/attachment_types/esql.tsx-pack/platform/plugins/shared/onechat/server/services/attachments/definitions/esql.ts renamed to x-pack/platform/plugins/shared/agent_builder_platform/server/attachment_types/esql.ts x-pack/platform/plugins/shared/onechat/server/services/attachments/definitions/esql.ts renamed to x-pack/platform/plugins/shared/agent_builder_platform/server/attachment_types/esql.ts

@@ -6,19 +6,32 @@
  */
 
 import type { AttachmentTypeDefinition } from '@kbn/onechat-server/attachments';
+import type { CoreSetup } from '@kbn/core-lifecycle-server';
 import { createTextAttachmentType } from './text';
 import { createEsqlAttachmentType } from './esql';
 import { createScreenContextAttachmentType } from './screen_context';
-import type { AttachmentServiceSetup } from '../types';
+import type {
+  AgentBuilderPlatformPluginStart,
+  PluginSetupDependencies,
+  PluginStartDependencies,
+} from '../types';
+
+export const registerAttachmentTypes = ({
+  coreSetup,
+  setupDeps,
+}: {
+  coreSetup: CoreSetup<PluginStartDependencies, AgentBuilderPlatformPluginStart>;
+  setupDeps: PluginSetupDependencies;
+}) => {
+  const { onechat } = setupDeps;
 
-export const registerAttachmentTypes = ({ registry }: { registry: AttachmentServiceSetup }) => {
   const attachmentTypes: AttachmentTypeDefinition<any, any>[] = [
     createTextAttachmentType(),
     createScreenContextAttachmentType(),
     createEsqlAttachmentType(),
   ];
 
   attachmentTypes.forEach((attachmentType) => {
-    registry.registerType(attachmentType);
+    onechat.attachments.registerType(attachmentType);
   });
 };