# capture_frame

Capture a single frame from the specified video source.

Agent View of the PolicyLayer registry record for `capture_frame`. HTML page: https://policylayer.com/tools/13rac1-videocapture-mcp/capture-frame

## Facts

- Tool: `capture_frame`
- Server: Video Still Capture MCP (`13rac1/videocapture-mcp`) — https://policylayer.com/tools/13rac1-videocapture-mcp.md
- Homepage: https://github.com/13rac1/videocapture-mcp
- Risk category: Read (Low risk)
- Registry record: grade C, 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_frame",
    "arguments": {}
  }
}
```

## Why capture_frame is rated Low

This tool reads/captures image data from a webcam or video source without modifying any stored data. It is a data retrieval operation. Severity is medium because it can capture real-world visual/private information from a camera, posing a privacy risk if misused by an AI agent.

From the tool's own definition: "Capture a single frame from the specified video source"

## Use case

AI agents call capture_frame to retrieve information from Video Still Capture MCP 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 Video Still Capture MCP:

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

## Other tools on Video Still Capture MCP (6)

- `close_connection` — Destructive — https://policylayer.com/tools/13rac1-videocapture-mcp/close-connection.md
- `quick_capture` — Execute — https://policylayer.com/tools/13rac1-videocapture-mcp/quick-capture.md
- `get_video_properties` — Read — https://policylayer.com/tools/13rac1-videocapture-mcp/get-video-properties.md
- `list_active_connections` — Read — https://policylayer.com/tools/13rac1-videocapture-mcp/list-active-connections.md
- `open_camera` — Write — https://policylayer.com/tools/13rac1-videocapture-mcp/open-camera.md
- `set_video_property` — Write — https://policylayer.com/tools/13rac1-videocapture-mcp/set-video-property.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=13rac1-videocapture-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/13rac1-videocapture-mcp