CDP Browser

CDP Browser

Binary skill that controls Chrome through the Chrome DevTools Protocol.

The binary accepts either command-line arguments or a JSON request from stdin. It prints one JSON response to stdout.

Actions

• describe: Return skill metadata without side effects.
• launch: Start Chrome with a CDP port.
• status: Check whether CDP is reachable.
• open: Open a URL in a new tab.
• list: List current tabs.
• eval: Evaluate JavaScript in the selected tab.
• click: Click an element by CSS selector.
• type: Type text into an element by CSS selector.
• screenshot: Capture the selected tab to a PNG file.

Input

{
  "action": "open",
  "port": 9222,
  "url": "https://example.com"
}

{
  "action": "type",
  "port": 9222,
  "selector": "input[name='q']",
  "text": "RestFlow"
}

Output

{
  "ok": true,
  "action": "open",
  "data": {
    "target_id": "ABC",
    "url": "https://example.com/"
  },
  "error": null
}

CLI Examples

cargo run -- launch --port 9222
cargo run -- open --port 9222 --url https://example.com
cargo run -- eval --port 9222 --expression "document.title"
cargo run -- screenshot --port 9222 --path /tmp/cdp.png