# list_entities

List all entities currently loaded in the Eyeshot CAD engine.

Agent View of the PolicyLayer registry record for `list_entities`. HTML page: https://policylayer.com/tools/a-001-byte-tesseract-26-eyeshot-mcp/list-entities

## Facts

- Tool: `list_entities`
- Server: Tesseract 26 Eyeshot (`a-001-byte/tesseract-26-eyeshot-mcp`) — https://policylayer.com/tools/a-001-byte-tesseract-26-eyeshot-mcp.md
- Homepage: https://github.com/A-001-byte/Tesseract-26-Eyeshot-MCP
- Risk category: Read (Low risk)
- Registry record: grade B, 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": "list_entities",
    "arguments": {}
  }
}
```

## Why list_entities is rated Low

This tool retrieves and enumerates existing CAD model data from the Eyeshot engine without modifying, executing operations on, or deleting any entities. It is purely informational, making it a Read category tool. Severity is low because even if an AI agent misuses this for reconnaissance, it only exposes model structure information without enabling destructive or operational changes.

From the tool's own definition: "Tool name 'list_entities' combined with description 'List all entities currently loaded in the Eyeshot CAD engine' indicates a query/retrieval operation with no modifications or side effects."

## Use case

AI agents call list_entities to retrieve information from Tesseract 26 Eyeshot 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 Tesseract 26 Eyeshot:

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

## Other tools on Tesseract 26 Eyeshot (3)

- `get_properties` — Read — https://policylayer.com/tools/a-001-byte-tesseract-26-eyeshot-mcp/get-properties.md
- `load_model` — Read — https://policylayer.com/tools/a-001-byte-tesseract-26-eyeshot-mcp/load-model.md
- `move_object` — Write — https://policylayer.com/tools/a-001-byte-tesseract-26-eyeshot-mcp/move-object.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=a-001-byte-tesseract-26-eyeshot-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/a-001-byte-tesseract-26-eyeshot-mcp