list_visible_planets
AI agents call list_visible_planets to retrieve information from Mcp Stargazing without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries visibility data about planets—a non-destructive, informational operation with no capability to modify, delete, or execute external actions. It fits the Read category pattern of fetching astronomical data.
From the tool's definition Tool name is 'list_visible_planets' and server purpose is to 'Calculate the altitude, rise, and set times of celestial objects.' The tool name indicates a query/list operation typical of Read category.
Attacks that exploit this kind of access
list_visible_planets. It is categorised as a Read tool in the Mcp Stargazing MCP Server, which means it retrieves data without modifying state.
Register the Mcp Stargazing MCP server in PolicyLayer and add a rule for list_visible_planets: 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 Mcp Stargazing. Nothing to install.
list_visible_planets 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 list_visible_planets 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 list_visible_planets. 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.
list_visible_planets is provided by the Mcp Stargazing MCP server (stargazer1995/mcp-stargazing). 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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