---
name: browser-control-skill-9c0da8a2cbe6
description: Control browser via Chrome DevTools Protocol - full CDP access
---

# 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


---
Source attribution: kbarbel640-del
Original project: https://github.com/kbarbel640-del/skills/blob/e7e336ac628c3e3bd771aff1aaa469c93778f94a/skills/myestery/verify-on-browser/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Dave AI.

## Upstream license notice

MIT License

Copyright (c) 2026 clawdbot

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Dave AI resource metadata

Creator / publisher: kbarbel640-del
Original project: https://github.com/kbarbel640-del/skills/blob/e7e336ac628c3e3bd771aff1aaa469c93778f94a/skills/myestery/verify-on-browser/SKILL.md
Attribution basis: Source repository record

Fields of work: Development & Engineering
Roles: Backend Developer, Frontend Developer, QA / Test Engineer
Specialties: API, Testing
Tools: Chrome Devtools Protocol
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: 5b96b4180bfecd0317f59d2f91b30137e044df08070e21eecba3cf9882c95dfe