Get Cookies

Instructions

Implementation Reference

• src/tools/instances.ts:46-60 (registration)

  Registration of 'pinchtab_cookies' tool via server.registerTool. It calls pinch('GET', '/cookies') to retrieve all cookies for the current page.

  server.registerTool(
    "pinchtab_cookies",
    {
      description: "Get all cookies for the current page.",
      inputSchema: z.object({}),
      title: "Get Cookies",
    },
    async () => {
      try {
        return toolResult(await pinch("GET", "/cookies"));
      } catch (error) {
        return toolError(error);
      }
    },
  );

• src/pinchtab/client.ts:6-49 (helper)

  The pinch() helper function that makes HTTP requests to the PinchTab server. Used by the cookies tool to GET /cookies.

  export async function pinch(
    method: string,
    path: string,
    body?: Record<string, unknown>,
  ): Promise<unknown> {
    if (!(await isPinchtabRunning())) {
      await ensurePinchtabRunning();
    }
  
    const headers: Record<string, string> = {
      "Content-Type": "application/json",
    };
    if (PINCHTAB_TOKEN) {
      headers["Authorization"] = `Bearer ${PINCHTAB_TOKEN}`;
    }
  
    const url = `${PINCHTAB_URL}${path}`;
  
    let res: Response;
    try {
      res = await fetch(url, {
        body: body ? JSON.stringify(body) : undefined,
        headers,
        method,
        signal: AbortSignal.timeout(REQUEST_TIMEOUT_MS),
      });
    } catch (error) {
      if (error instanceof DOMException && error.name === "TimeoutError") {
        throw new Error(`PinchTab ${method} ${path} timed out after ${REQUEST_TIMEOUT_MS / 1000}s`);
      }
      throw error;
    }
  
    if (!res.ok) {
      const text = await res.text();
      throw new Error(`PinchTab ${method} ${path} → ${res.status}: ${text}`);
    }
  
    const contentType = (res.headers.get("content-type") ?? "").split(";")[0].toLowerCase().trim();
    if (contentType === "application/json") {
      return res.json();
    }
    return res.text();
  }

• src/utils.ts:18-29 (helper)

  The toolResult() and toolError() helper functions used by the cookies handler to format success/error responses.

  export function toolResult(data: unknown): ToolResult {
    return { content: [{ text: toJson(data), type: "text" as const }] };
  }
  
  /** Format an error as an MCP tool error response. */
  export function toolError(error: unknown): ToolResult {
    const message = error instanceof Error ? error.message : String(error);
    return {
      content: [{ text: message, type: "text" as const }],
      isError: true,
    };
  }

• src/tools/instances.ts:49-51 (schema)

  Input schema for pinchtab_cookies: an empty object (z.object({})), meaning no parameters are required.

  description: "Get all cookies for the current page.",
  inputSchema: z.object({}),
  title: "Get Cookies",

• src/tools/index.ts:7-12 (registration)

  registerAllTools() calls registerInstanceTools(), which registers pinchtab_cookies among other tools.

  export function registerAllTools(server: McpServer) {
    registerInstanceTools(server);
    registerNavigationTools(server);
    registerInteractionTools(server);
    registerContentTools(server);
  }