remove fireAgent and beforeAgent hook (#16919)

Co-authored-by: Tommaso Sciortino <sciortino@gmail.com>

packages/core/src/core/clientHookTriggers.ts

@@ -1,105 +0,0 @@
-/**
- * @license
- * Copyright 2025 Google LLC
- * SPDX-License-Identifier: Apache-2.0
- */
-
-import type { PartListUnion } from '@google/genai';
-import type { MessageBus } from '../confirmation-bus/message-bus.js';
-import {
-  MessageBusType,
-  type HookExecutionRequest,
-  type HookExecutionResponse,
-} from '../confirmation-bus/types.js';
-import { createHookOutput, type DefaultHookOutput } from '../hooks/types.js';
-import { partToString } from '../utils/partUtils.js';
-import { debugLogger } from '../utils/debugLogger.js';
-
-/**
- * Fires the BeforeAgent hook and returns the hook output.
- * This should be called before processing a user prompt.
- *
- * The caller can use the returned DefaultHookOutput methods:
- * - isBlockingDecision() / shouldStopExecution() to check if blocked
- * - getEffectiveReason() to get the blocking reason
- * - getAdditionalContext() to get additional context to add
- *
- * @param messageBus The message bus to use for hook communication
- * @param request The user's request (prompt)
- * @returns The hook output, or undefined if no hook was executed or on error
- */
-export async function fireBeforeAgentHook(
-  messageBus: MessageBus,
-  request: PartListUnion,
-): Promise<DefaultHookOutput | undefined> {
-  try {
-    const promptText = partToString(request);
-
-    const response = await messageBus.request<
-      HookExecutionRequest,
-      HookExecutionResponse
-    >(
-      {
-        type: MessageBusType.HOOK_EXECUTION_REQUEST,
-        eventName: 'BeforeAgent',
-        input: {
-          prompt: promptText,
-        },
-      },
-      MessageBusType.HOOK_EXECUTION_RESPONSE,
-    );
-
-    return response.output
-      ? createHookOutput('BeforeAgent', response.output)
-      : undefined;
-  } catch (error) {
-    debugLogger.debug(`BeforeAgent hook failed: ${error}`);
-    return undefined;
-  }
-}
-
-/**
- * Fires the AfterAgent hook and returns the hook output.
- * This should be called after the agent has generated a response.
- *
- * The caller can use the returned DefaultHookOutput methods:
- * - isBlockingDecision() / shouldStopExecution() to check if continuation is requested
- * - getEffectiveReason() to get the continuation reason
- *
- * @param messageBus The message bus to use for hook communication
- * @param request The original user's request (prompt)
- * @param responseText The agent's response text
- * @returns The hook output, or undefined if no hook was executed or on error
- */
-export async function fireAfterAgentHook(
-  messageBus: MessageBus,
-  request: PartListUnion,
-  responseText: string,
-): Promise<DefaultHookOutput | undefined> {
-  try {
-    const promptText = partToString(request);
-
-    const response = await messageBus.request<
-      HookExecutionRequest,
-      HookExecutionResponse
-    >(
-      {
-        type: MessageBusType.HOOK_EXECUTION_REQUEST,
-        eventName: 'AfterAgent',
-        input: {
-          prompt: promptText,
-          prompt_response: responseText,
-          stop_hook_active: false,
-        },
-      },
-      MessageBusType.HOOK_EXECUTION_RESPONSE,
-    );
-
-    return response.output
-      ? createHookOutput('AfterAgent', response.output)
-      : undefined;
-  } catch (error) {
-    debugLogger.debug(`AfterAgent hook failed: ${error}`);
-    return undefined;
-  }
-}