cursor_check

THE RISK

Low Risk

Why cursor_check needs a policy

The tool retrieves information about the system state (Cursor CLI installation status and available features) without modifying, executing external operations, or affecting data. It is a read-only diagnostic check, placing it in the Read category with low severity since misuse poses minimal risk.

From the tool's definition Tool description states it 'Check[s] whether Cursor CLI is installed and which orchestration features are available.' This is a diagnostic query with no side effects.

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

POLICY

How to control cursor_check

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "cursor_check": {}
  }
}

cursor_check is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

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

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Agent Orchestration tools

Destructive memory_delete Delete a value from shared memory. Destructive agent_unregister Unregister this agent and release all held locks. Call at the end of your session. Execute bootstrap Initialize agent session: register (if needed), get current focus, pending tasks, and rece Execute cursor_recover_task Recover a failed or stale delegated Cursor task by relaunching it with the latest shared c Execute lock_acquire Acquire a lock on a resource to prevent concurrent access. Write claim_todo FOR SUB-AGENTS: Register yourself AND claim a specific task in one call. Use this when you Write cursor_delegate_task Delegate a task to Cursor CLI and store session metadata for later resume/sync. Write cursor_sync_task Refresh a delegated Cursor task, sync the latest provider status, and persist knowledge ba

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about cursor_check

What does the cursor_check tool do? +

Check whether Cursor CLI is installed and which orchestration features are available. It is categorised as a Read tool in the Agent Orchestration MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on cursor_check? +

Register the Agent Orchestration MCP server in PolicyLayer and add a rule for cursor_check: 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 Agent Orchestration. Nothing to install.

What risk level is cursor_check? +

cursor_check is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit cursor_check? +

Yes. Add a rate_limit block to the cursor_check 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 cursor_check completely? +

Set action: deny in the PolicyLayer policy for cursor_check. 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 cursor_check? +

cursor_check is provided by the Agent Orchestration MCP server (madebyaris/agent-orchestration). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Agent Orchestration tool call.

Start from Agent Orchestration, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →