transform_coordinates · XHelio-SPICE MCP: Risk & Policy

WHAT IT DOES

What transform_coordinates does on XHelio-SPICE

AI agents invoke transform_coordinates to trigger actions in XHelio-SPICE. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why transform_coordinates needs a policy

Transform operations execute mathematical transformations whose output depends on supplied arguments (coordinate frames, epochs, spacecraft state). This fits the Execute category: it runs computations triggered by arguments, though results are deterministic read-only outputs without side effects on the underlying system.

From the tool's definition Tool name is 'transform_coordinates' with empty description. Context indicates this is part of a SPICE kernel system for spacecraft ephemeris.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

transform_coordinates Rate-limited

transform_coordinates stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "transform_coordinates": {
      "limits": [
        {
          "counter": "transform_coordinates_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches XHelio-SPICE, so you can run agents against it safely.

FAQ

Questions about transform_coordinates

What does the transform_coordinates tool do? +

transform_coordinates. It is categorised as a Execute tool in the XHelio-SPICE MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on transform_coordinates? +

Register the XHelio-SPICE MCP server in PolicyLayer and add a rule for transform_coordinates: 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 XHelio-SPICE. Nothing to install.

What risk level is transform_coordinates? +

transform_coordinates is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit transform_coordinates? +

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

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

transform_coordinates is provided by the XHelio-SPICE MCP server (xhelio-spice). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.