playwright_patch
Update specific parts of web content by sending HTTP PATCH requests through browser automation, enabling targeted modifications to web resources.
Instructions
Perform an HTTP PATCH request
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | URL to perform PUT operation | |
| value | Yes | Data to PATCH in the body |
Implementation Reference
- src/tools/api/requests.ts:121-150 (handler)The execute method of PatchRequestTool performs the PATCH HTTP request. It validates JSON input if applicable, sends the request via Playwright's APIRequestContext.patch, retrieves the response text, and formats a success response with status and truncated body.
async execute(args: any, context: ToolContext): Promise<ToolResponse> { return this.safeExecute(context, async (apiContext) => { // Check if the value is valid JSON if it starts with { or [ if (args.value && typeof args.value === 'string' && (args.value.startsWith('{') || args.value.startsWith('['))) { try { JSON.parse(args.value); } catch (error) { return createErrorResponse(`Failed to parse request body: ${(error as Error).message}`); } } const response = await apiContext.patch(args.url, { data: args.value }); let responseText; try { responseText = await response.text(); } catch (error) { responseText = "Unable to get response text"; } return createSuccessResponse([ `PATCH request to ${args.url}`, `Status: ${response.status()} ${response.statusText()}`, `Response: ${responseText.substring(0, 1000)}${responseText.length > 1000 ? '...' : ''}` ]); }); } - src/tools.ts:285-295 (schema)Tool schema definition including name, description, and input schema requiring 'url' and 'value' parameters.
name: "playwright_patch", description: "Perform an HTTP PATCH request", inputSchema: { type: "object", properties: { url: { type: "string", description: "URL to perform PUT operation" }, value: { type: "string", description: "Data to PATCH in the body" }, }, required: ["url", "value"], }, }, - src/toolHandler.ts:533-534 (registration)Dispatch/registration in handleToolCall switch statement that routes 'playwright_patch' tool calls to the PatchRequestTool handler.
case "playwright_patch": return await patchRequestTool.execute(args, context); - src/toolHandler.ts:336-340 (registration)Instantiation of PatchRequestTool instance during tool initialization in initializeTools function.
if (!getRequestTool) getRequestTool = new GetRequestTool(server); if (!postRequestTool) postRequestTool = new PostRequestTool(server); if (!putRequestTool) putRequestTool = new PutRequestTool(server); if (!patchRequestTool) patchRequestTool = new PatchRequestTool(server); if (!deleteRequestTool) deleteRequestTool = new DeleteRequestTool(server); - src/tools/api/base.ts:50-62 (helper)The safeExecute helper method in ApiToolBase used by PatchRequestTool to ensure API context is available and handle execution errors.
protected async safeExecute( context: ToolContext, operation: (apiContext: APIRequestContext) => Promise<ToolResponse> ): Promise<ToolResponse> { const apiError = this.validateApiContextAvailable(context); if (apiError) return apiError; try { return await operation(context.apiContext!); } catch (error) { return createErrorResponse(`API operation failed: ${(error as Error).message}`); } }