Fetch the full Online Cyber Tools page guidance for a tool. Accepts a menu ID such as
AI agents call describe_tool to retrieve information from OnlineCyberTools MCP (280+ filterable tools) without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves documentation or metadata about another tool in the Online Cyber Tools catalogue. It performs a GET-like operation that queries and returns information without modifying, executing, or deleting anything. The action is read-only and non-destructive, fitting squarely into the 'Read' category with low severity risk.
From the tool's definition Tool name 'describe_tool' and description 'Fetch the full Online Cyber Tools page guidance for a tool' indicates a retrieval-only operation with no side effects.
Attacks that exploit this kind of access
Fetch the full Online Cyber Tools page guidance for a tool. Accepts a menu ID such as. It is categorised as a Read tool in the OnlineCyberTools MCP (280+ filterable tools) MCP Server, which means it retrieves data without modifying state.
Register the OnlineCyberTools MCP (280+ filterable tools) MCP server in PolicyLayer and add a rule for describe_tool: 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 OnlineCyberTools MCP (280+ filterable tools). Nothing to install.
describe_tool 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 describe_tool 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 describe_tool. 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.
describe_tool is provided by the OnlineCyberTools MCP (280+ filterable tools) MCP server (jambozx/onlinecybertools-mcp-server). 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.
Teams ship this data inside their own products. See what a licence covers →