nina_disconnect_camera

THE RISK

Medium Risk

Why nina_disconnect_camera needs a policy

Disconnecting a camera is a reversible state change — the camera can be reconnected. It modifies the connection state of the device within the software but does not delete data or execute arbitrary code. However, misuse during an active imaging session could interrupt observations, hence medium severity.

From the tool's definition Disconnect the camera from NINA astronomy software

Documented attack patterns abuse exactly the kind of access nina_disconnect_camera gives an agent:

POLICY

How to control nina_disconnect_camera

PolicyLayer is an MCP gateway — it sits between your AI agents and Nina Advanced API MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for nina_disconnect_camera:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "nina_disconnect_camera": {
      "limits": [
        {
          "counter": "nina_disconnect_camera_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

nina_disconnect_camera stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Nina Advanced API MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

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All 103 Nina Advanced API MCP tools →

Write tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about nina_disconnect_camera

What does the nina_disconnect_camera tool do? +

Disconnect the camera from NINA astronomy software. It is categorised as a Write tool in the Nina Advanced API MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on nina_disconnect_camera? +

Register the Nina Advanced API MCP server in PolicyLayer and add a rule for nina_disconnect_camera: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Nina Advanced API MCP. Nothing to install.

What risk level is nina_disconnect_camera? +

nina_disconnect_camera is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit nina_disconnect_camera? +

Yes. Add a rate_limit block to the nina_disconnect_camera rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block nina_disconnect_camera completely? +

Set action: deny in the PolicyLayer policy for nina_disconnect_camera. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides nina_disconnect_camera? +

nina_disconnect_camera is provided by the Nina Advanced API MCP server (padev1/nina_advanced_api_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Nina Advanced API MCP tool call.

Start from Nina Advanced API MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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