chore: perform agent turn event

Author: pavelfeldman

docs/src/api/class-page.md

@@ -544,6 +544,17 @@ sequence of events is `request`, `response` and `requestfinished`.
 Emitted when [response] status and headers are received for a request. For a successful response, the sequence of events
 is `request`, `response` and `requestfinished`.
 
+## event: Page.agentTurn
+* since: v1.58
+- argument: <[Object]>
+  - `role` <[string]>
+  - `message` <[string]>
+  - `usage` ?<[Object]>
+    - `inputTokens` <[int]>
+    - `outputTokens` <[int]>
+
+Emitted when the agent makes a turn.
+
 ## event: Page.webSocket
 * since: v1.9
 - argument: <[WebSocket]>

docs/src/api/params.md

@@ -375,7 +375,7 @@ Emulates consistent window screen size available inside web page via `window.scr
   - `provider` <[string]> LLM provider to use.
   - `model` <[string]> Model identifier within provider.
   - `cacheFile` ?<[string]> Cache file to use/generate code for performed actions into. Cache is not used if not specified (default).
-  - `cacheMode` ?<['force'|'ignore'|'auto']> Cache control, defaults to 'auto'.
+  - `cacheMode` ?<['force'|'ignore'|'update'|'auto']> Cache control, defaults to 'auto'.
   - `secrets` ?<[Object]<[string], [string]>> Secrets to hide from the LLM.
   - `maxTurns` ?<[int]> Maximum number of agentic turns to take per call. Defaults to 10.
   - `maxTokens` ?<[int]> Maximum number of tokens to consume per call. The agentic loop will stop after input + output tokens exceed this value. Defaults on unlimited.

examples/todomvc/playwright.config.ts

@@ -1,6 +1,9 @@
 /* eslint-disable notice/notice */
 
 import { defineConfig, devices } from '@playwright/test';
+import dotenv from 'dotenv';
+
+dotenv.config();
 
 /**
  * See https://playwright.dev/docs/test-configuration.

package-lock.json

@@ -56,7 +56,7 @@
     "@eslint/compat": "^1.3.2",
     "@eslint/eslintrc": "^3.3.1",
     "@eslint/js": "^9.34.0",
-    "@lowire/loop": "^0.0.8",
+    "@lowire/loop": "^0.0.10",
     "@modelcontextprotocol/sdk": "^1.17.5",
     "@octokit/graphql-schema": "^15.26.0",
     "@stylistic/eslint-plugin": "^5.2.3",

package.json

@@ -1036,6 +1036,21 @@ export interface Page {
    * @param options
    */
   extract<Schema extends ZodTypeAny>(query: string, schema: Schema): Promise<ZodInfer<Schema>>;
+  /**
+   * Emitted when the agent makes a turn.
+   */
+  on(event: 'agentturn', listener: (data: {
+    role: string;
+
+    message: string;
+
+    usage?: {
+      inputTokens: number;
+
+      outputTokens: number;
+    };
+  }) => any): this;
+
   /**
    * Emitted when the page closes.
    */
@@ -1243,6 +1258,21 @@ export interface Page {
    */
   on(event: 'worker', listener: (worker: Worker) => any): this;
 
+  /**
+   * Adds an event listener that will be automatically removed after it is triggered once. See `addListener` for more information about this event.
+   */
+  once(event: 'agentturn', listener: (data: {
+    role: string;
+
+    message: string;
+
+    usage?: {
+      inputTokens: number;
+
+      outputTokens: number;
+    };
+  }) => any): this;
+
   /**
    * Adds an event listener that will be automatically removed after it is triggered once. See `addListener` for more information about this event.
    */
@@ -1338,6 +1368,21 @@ export interface Page {
    */
   once(event: 'worker', listener: (worker: Worker) => any): this;
 
+  /**
+   * Emitted when the agent makes a turn.
+   */
+  addListener(event: 'agentturn', listener: (data: {
+    role: string;
+
+    message: string;
+
+    usage?: {
+      inputTokens: number;
+
+      outputTokens: number;
+    };
+  }) => any): this;
+
   /**
    * Emitted when the page closes.
    */
@@ -1545,6 +1590,21 @@ export interface Page {
    */
   addListener(event: 'worker', listener: (worker: Worker) => any): this;
 
+  /**
+   * Removes an event listener added by `on` or `addListener`.
+   */
+  removeListener(event: 'agentturn', listener: (data: {
+    role: string;
+
+    message: string;
+
+    usage?: {
+      inputTokens: number;
+
+      outputTokens: number;
+    };
+  }) => any): this;
+
   /**
    * Removes an event listener added by `on` or `addListener`.
    */
@@ -1640,6 +1700,21 @@ export interface Page {
    */
   removeListener(event: 'worker', listener: (worker: Worker) => any): this;
 
+  /**
+   * Removes an event listener added by `on` or `addListener`.
+   */
+  off(event: 'agentturn', listener: (data: {
+    role: string;
+
+    message: string;
+
+    usage?: {
+      inputTokens: number;
+
+      outputTokens: number;
+    };
+  }) => any): this;
+
   /**
    * Removes an event listener added by `on` or `addListener`.
    */
@@ -1735,6 +1810,21 @@ export interface Page {
    */
   off(event: 'worker', listener: (worker: Worker) => any): this;
 
+  /**
+   * Emitted when the agent makes a turn.
+   */
+  prependListener(event: 'agentturn', listener: (data: {
+    role: string;
+
+    message: string;
+
+    usage?: {
+      inputTokens: number;
+
+      outputTokens: number;
+    };
+  }) => any): this;
+
   /**
    * Emitted when the page closes.
    */
@@ -4790,6 +4880,41 @@ export interface Page {
     height: number;
   };
 
+  /**
+   * Emitted when the agent makes a turn.
+   */
+  waitForEvent(event: 'agentturn', optionsOrPredicate?: { predicate?: (data: {
+    role: string;
+
+    message: string;
+
+    usage?: {
+      inputTokens: number;
+
+      outputTokens: number;
+    };
+  }) => boolean | Promise<boolean>, timeout?: number } | ((data: {
+    role: string;
+
+    message: string;
+
+    usage?: {
+      inputTokens: number;
+
+      outputTokens: number;
+    };
+  }) => boolean | Promise<boolean>)): Promise<{
+    role: string;
+
+    message: string;
+
+    usage?: {
+      inputTokens: number;
+
+      outputTokens: number;
+    };
+  }>;
+
   /**
    * Emitted when the page closes.
    */
@@ -22118,7 +22243,7 @@ export interface BrowserContextOptions {
     /**
      * Cache control, defaults to 'auto'.
      */
-    cacheMode?: 'force'|'ignore'|'auto';
+    cacheMode?: 'force'|'ignore'|'update'|'auto';
 
     /**
      * Secrets to hide from the LLM.

packages/playwright-client/types/types.d.ts

@@ -4,7 +4,7 @@ THIRD-PARTY SOFTWARE NOTICES AND INFORMATION
 
 This project incorporates components from the projects listed below. The original copyright notices and the licenses under which Microsoft received such components are set forth below. Microsoft reserves all rights not expressly granted herein, whether by implication, estoppel or otherwise.
 
--	@lowire/loop@0.0.8 (https://github.com/pavelfeldman/lowire)
+-	@lowire/loop@0.0.10 (https://github.com/pavelfeldman/lowire)
 -	@modelcontextprotocol/sdk@1.24.2 (https://github.com/modelcontextprotocol/typescript-sdk)
 -	accepts@2.0.0 (https://github.com/jshttp/accepts)
 -	agent-base@7.1.4 (https://github.com/TooTallNate/proxy-agents)
@@ -135,7 +135,7 @@ This project incorporates components from the projects listed below. The origina
 -	zod-to-json-schema@3.25.0 (https://github.com/StefanTerdell/zod-to-json-schema)
 -	zod@3.25.76 (https://github.com/colinhacks/zod)
 
-%% @lowire/loop@0.0.8 NOTICES AND INFORMATION BEGIN HERE
+%% @lowire/loop@0.0.10 NOTICES AND INFORMATION BEGIN HERE
 =========================================
 Apache License
                            Version 2.0, January 2004
@@ -339,7 +339,7 @@ Apache License
    See the License for the specific language governing permissions and
    limitations under the License.
 =========================================
-END OF @lowire/loop@0.0.8 AND INFORMATION
+END OF @lowire/loop@0.0.10 AND INFORMATION
 
 %% @modelcontextprotocol/sdk@1.24.2 NOTICES AND INFORMATION BEGIN HERE
 =========================================

packages/playwright-core/ThirdPartyNotices.txt

@@ -3,8 +3,8 @@
   "version": "0.0.1",
   "private": true,
   "dependencies": {
+    "@lowire/loop": "^0.0.10",
     "@modelcontextprotocol/sdk": "^1.24.0",
-    "@lowire/loop": "^0.0.8",
     "zod": "^3.25.76",
     "zod-to-json-schema": "^3.24.6"
   }

packages/playwright-core/bundles/mcp/package-lock.json

@@ -55,6 +55,7 @@ export const Events = {
   },
 
   Page: {
+    AgentTurn: 'agentturn',
     Close: 'close',
     Crash: 'crash',
     Console: 'console',