List OpenAPI operations with pagination and optional filters.
AI agents call astrovisor_openapi_list to retrieve information from Astrovisor without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and enumerates available OpenAPI operations without creating, modifying, deleting, or executing any operations. It is informational only, making it a Read category tool with low severity risk.
From the tool's definition Tool name contains 'list' and description states 'List OpenAPI operations' — a retrieval operation with no side effects. Pagination and optional filters are read-only query mechanisms.
Documented attack patterns abuse exactly the kind of access astrovisor_openapi_list gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Astrovisor, and nothing reaches the server without passing your rules. This is the rule we recommend for astrovisor_openapi_list:
{
"version": "1",
"default": "deny",
"tools": {
"astrovisor_openapi_list": {}
}
}astrovisor_openapi_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List OpenAPI operations with pagination and optional filters. It is categorised as a Read tool in the Astrovisor MCP Server, which means it retrieves data without modifying state.
Register the Astrovisor MCP server in PolicyLayer and add a rule for astrovisor_openapi_list: 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 Astrovisor. Nothing to install.
astrovisor_openapi_list 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 astrovisor_openapi_list 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 astrovisor_openapi_list. 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.
astrovisor_openapi_list is provided by the Astrovisor MCP server (rokoss21/astrovisor-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Astrovisor, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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6 Astrovisor tools catalogued and risk-classified — across an index of 43,000+ MCP servers.