AI agents call random_string to retrieve information from UnClick without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
length | number | — | |
charset | string | — |
Parameters from the server's own tool schema.
Generating random strings is a computational utility with no data retrieval, modification, execution, destruction, or financial implications. While not strictly a 'read' operation in the traditional sense, it fits the Read category as the least severe classification (produces data without side effects). Severity is low because misuse poses no meaningful security or operational risk.
From the tool's definition Tool name and description: 'Generate a random string.' This is a pure utility function that produces output without reading external data, modifying any state, or triggering side effects.
Attacks that exploit this kind of access
Generate a random string. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
random_string accepts 2 parameters: length, charset. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for random_string: 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 UnClick. Nothing to install.
random_string 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 random_string 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 random_string. 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.
random_string is provided by the UnClick MCP server (@unclick/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.
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