get_ephemeris
AI agents call get_ephemeris to retrieve information from XHelio-SPICE without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Ephemeris functions retrieve historical or predicted orbital positions and velocities—purely informational queries with no side effects. No data modification, execution, deletion, or financial operations are implied. Confidence is moderately high based on naming conventions and server context, reduced slightly due to empty description.
From the tool's definition Tool name 'get_ephemeris' indicates retrieval of spacecraft position/state data. Server context (ephemeris, coordinate frames, SPICE kernels) confirms data-query operations.
Attacks that exploit this kind of access
get_ephemeris. It is categorised as a Read tool in the XHelio-SPICE MCP Server, which means it retrieves data without modifying state.
Register the XHelio-SPICE MCP server in PolicyLayer and add a rule for get_ephemeris: 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.
get_ephemeris is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_ephemeris 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.
Set action: deny in the PolicyLayer policy for get_ephemeris. 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.
get_ephemeris 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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