verify-on-browser

# Browser Control Skill Use the `browser` MCP server to control a browser with full CDP access. The core `cdp_send` tool can call ANY Chrome DevTools Protocol method. ## Available Tools ### `cdp_send` - Raw CDP Access Call any CDP method directly: ``` cdp_send(method: "Domain.method", params: {...}) ``` ### `screenshot` - Capture Page ``` screenshot(format: "png"|"jpeg", fullPage: true|false) ``` ### `get_url` - Current URL ``` get_url() ``` ### `close_browser` - Close Browser ``` close_browser() ``` ## Common CDP Operations ### Navigation ```javascript // Navigate to URL cdp_send(method: "Page.navigate", params: { url: "https://example.com" }) // Reload cdp_send(method: "Page.reload") // Go back/forward cdp_send(method: "Page.navigateToHistoryEntry", params: { entryId: 1 }) ``` ### DOM Manipulation ```javascript // Get document root cdp_send(method: "DOM.getDocument") // Query selector (needs nodeId from getDocument) cdp_send(method: "DOM.querySelector", params: { nodeId: 1, selector: "h1" }) // Get outer HTML cdp_send(method: "DOM.getOuterHTML", params: { nodeId: 5 }) // Set attribute cdp_send(method: "DOM.setAttributeValue", params: { nodeId: 5, name: "class", value: "new-class" }) ``` ### JavaScript Execution ```javascript // Evaluate expression cdp_send(method: "Runtime.evaluate", params: { expression: "document.title" }) // Evaluate with return value cdp_send(method: "Runtime.evaluate", params: { expression: "document.querySelectorAll('a').length", returnByValue: true }) // Call function on object cdp_send(method: "Runtime.callFunctionOn", params: { objectId: "...", functionDeclaration: "function() { return this.innerText; }" }) ``` ### Network ```javascript // Enable network tracking (required first) cdp_send(method: "Network.enable") // Set cookies cdp_send(method: "Network.setCookie", params: { name: "session", value: "abc123", domain: ".example.com" }) // Get cookies cdp_send(method: "Network.getCookies") // Clear cache cdp_send(method: "Network.clearBrowserCache") // Set extra headers cdp_send(method: "Network.setExtraHTTPHeaders", params: { headers: { "X-Custom": "value" } }) // Block URLs cdp_send(method: "Network.setBlockedURLs", params: { urls: ["*.ads.com"] }) ``` ### Input Simulation ```javascript // Click (dispatch mouse event) cdp_send(method: "Input.dispatchMouseEvent", params: { type: "mousePressed", x: 100, y: 200, button: "left", clickCount: 1 }) // Type text cdp_send(method: "Input.insertText", params: { text: "Hello world" }) // Key press cdp_send(method: "Input.dispatchKeyEvent", params: { type: "keyDown", key: "Enter" }) ``` ### Emulation ```javascript // Set viewport cdp_send(method: "Emulation.setDeviceMetricsOverride", params: { width: 375, height: 812, deviceScaleFactor: 3, mobile: true }) // Set geolocation cdp_send(method: "Emulation.setGeolocationOverride", params: { latitude: 37.7749, longitude: -122.4194, accuracy: 100 }) // Set timezone cdp_send(method: "Emulation.setTimezoneOverride", params: { timezoneId: "America/New_York" }) ``` ### Performance & Debugging ```javascript // Enable performance metrics cdp_send(method: "Performance.enable") // Get metrics cdp_send(method: "Performance.getMetrics") // Start profiler cdp_send(method: "Profiler.start") // Stop and get profile cdp_send(method: "Profiler.stop") // Enable debugger cdp_send(method: "Debugger.enable") // Set breakpoint cdp_send(method: "Debugger.setBreakpointByUrl", params: { lineNumber: 10, url: "https://example.com/script.js" }) ``` ### Storage ```javascript // Get local storage cdp_send(method: "DOMStorage.getDOMStorageItems", params: { storageId: { securityOrigin: "https://example.com", isLocalStorage: true } }) // Clear storage cdp_send(method: "Storage.clearDataForOrigin", params: { origin: "https://example.com", storageTypes: "all" }) ``` ## CDP Protocol Reference For complete list of all domains and methods: https://chromedevtools.github.io/devtools-protocol/ Common domains: - **Page** - Navigation, lifecycle, PDF generation - **DOM** - Document structure manipulation - **CSS** - Stylesheet manipulation - **Runtime** - JavaScript execution - **Network** - Request/response interception - **Input** - Keyboard/mouse simulation - **Emulation** - Device/viewport simulation - **Debugger** - JavaScript debugging - **Performance** - Performance metrics - **Storage** - localStorage, IndexedDB, cookies