# detect_face_features

A read tool on the Live2D Automation MCP Server MCP server.

Agent View of the PolicyLayer registry record for `detect_face_features`. HTML page: https://policylayer.com/tools/j621111-live2d-automation/detect-face-features

## Facts

- Tool: `detect_face_features`
- Server: Live2D Automation MCP Server (`j621111/live2d-automation`) — https://policylayer.com/tools/j621111-live2d-automation.md
- Homepage: https://github.com/J621111/live2d-automation
- 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": "detect_face_features",
    "arguments": {}
  }
}
```

## Why detect_face_features is rated Low

Face feature detection is a read-only operation that extracts information from an image without modifying, deleting, or executing arbitrary code. It returns data (detected features) with no side effects. The empty description reduces confidence slightly, but the name and server context clearly indicate a detection/analysis function rather than generation, execution, or modification.

From the tool's own definition: "Tool name 'detect_face_features' indicates image analysis and feature detection. The server description confirms this is part of a pipeline that analyzes input photos ('analyze_photo', 'analyze_parts_with_ai' sibling tools)."

## Use case

AI agents call detect_face_features to retrieve information from Live2D Automation MCP Server 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 Live2D Automation MCP Server:

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

## Other tools on Live2D Automation MCP Server (16)

- `execute_cubism_dispatch` — Execute — https://policylayer.com/tools/j621111-live2d-automation/execute-cubism-dispatch.md
- `full_pipeline` — Execute — https://policylayer.com/tools/j621111-live2d-automation/full-pipeline.md
- `resume_cubism_dispatch` — Execute — https://policylayer.com/tools/j621111-live2d-automation/resume-cubism-dispatch.md
- `analyze_parts_with_ai` — Other — https://policylayer.com/tools/j621111-live2d-automation/analyze-parts-with-ai.md
- `build_cubism_psd` — Other — https://policylayer.com/tools/j621111-live2d-automation/build-cubism-psd.md
- `close_session` — Other — https://policylayer.com/tools/j621111-live2d-automation/close-session.md
- `generate_layers` — Other — https://policylayer.com/tools/j621111-live2d-automation/generate-layers.md
- `prepare_cubism_automation` — Other — https://policylayer.com/tools/j621111-live2d-automation/prepare-cubism-automation.md
- `segment_detected_parts` — Other — https://policylayer.com/tools/j621111-live2d-automation/segment-detected-parts.md
- `setup_rigging` — Other — https://policylayer.com/tools/j621111-live2d-automation/setup-rigging.md
- `analyze_photo` — Read — https://policylayer.com/tools/j621111-live2d-automation/analyze-photo.md
- `validate_cubism_export` — Read — https://policylayer.com/tools/j621111-live2d-automation/validate-cubism-export.md
- `configure_physics` — Write — https://policylayer.com/tools/j621111-live2d-automation/configure-physics.md
- `create_mesh` — Write — https://policylayer.com/tools/j621111-live2d-automation/create-mesh.md
- `export_model` — Write — https://policylayer.com/tools/j621111-live2d-automation/export-model.md
- `generate_motions` — Write — https://policylayer.com/tools/j621111-live2d-automation/generate-motions.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=j621111-live2d-automation · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/j621111-live2d-automation