# capture_page_screenshot

Capture a screenshot of the current page/tab via CDP and optionally save it to a file path.

Agent View of the PolicyLayer registry record for `capture_page_screenshot`. HTML page: https://policylayer.com/tools/335234131-agent-browser-mcp/capture-page-screenshot

## Facts

- Tool: `capture_page_screenshot`
- Server: Agent Browser (`335234131/agent-browser-mcp`) — https://policylayer.com/tools/335234131-agent-browser-mcp.md
- Homepage: https://github.com/335234131/agent-browser-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "capture_page_screenshot",
    "arguments": {}
  }
}
```

## Why capture_page_screenshot is rated Low

Screenshot capture is a read operation—it queries and retrieves the visual representation of the current page state without side effects or modifications. However, severity is medium rather than low because: (1) screenshots can leak sensitive information visible on screen (credentials, personal data, API keys in dev tools), (2) the tool has access to full browser context including login sessions and cookies as noted…

From the tool's own definition: "Tool name 'capture_page_screenshot' and description state it 'Capture[s] a screenshot of the current page/tab' with optional file save. This retrieves visual data from the browser without modifying page state or executing arbitrary code."

## Use case

AI agents call capture_page_screenshot to retrieve information from Agent Browser without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Agent Browser:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "capture_page_screenshot": {}
  }
}
```

## Other tools on Agent Browser (19)

- `cdp_batch` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/cdp-batch.md
- `cdp_command` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/cdp-command.md
- `execute_js` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/execute-js.md
- `hotkey` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/hotkey.md
- `mouse_click` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/mouse-click.md
- `mouse_drag` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/mouse-drag.md
- `mouse_move` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/mouse-move.md
- `open_new_tab` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/open-new-tab.md
- `open_url` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/open-url.md
- `switch_tab` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/switch-tab.md
- `type_text` — Execute — https://policylayer.com/tools/335234131-agent-browser-mcp/type-text.md
- `capture_desktop_screenshot` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/capture-desktop-screenshot.md
- `extension_path` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/extension-path.md
- `get_cookies` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/get-cookies.md
- `get_setup_status` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/get-setup-status.md
- `list_extensions` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/list-extensions.md
- `list_tabs` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/list-tabs.md
- `pointer_info` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/pointer-info.md
- `scan_page` — Read — https://policylayer.com/tools/335234131-agent-browser-mcp/scan-page.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=335234131-agent-browser-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/335234131-agent-browser-mcp