This record as markdown: /tools/io-tinyfn-tinyfn/cube-root.md
What cube_root does on TinyFn
AI agents call cube_root to retrieve information from TinyFn without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
number | number | Yes | Number to find cube root of |
Parameters from the server's own tool schema.
Why cube_root is rated Low
This is a deterministic mathematical function that performs a read-only computation. It takes a numeric input and returns a calculated value (the cube root). There are no side effects, no data persistence, no external service calls, and no ability to affect system state. This falls squarely into the Read category as a query-like operation that retrieves computed data.
From the tool's definition Tool name 'cube_root' and description 'Calculate the cube root of a number' indicate a pure mathematical computation that retrieves a calculated result without modifying, creating, deleting, or executing any external operations.
Risk signalsAdmin/system-level operation
Attacks that exploit this kind of access
The rule that runs cube_root safely
PolicyLayer is an MCP gateway: it sits between your AI agents and TinyFn, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cube_root, this is the rule to start with:
cube_root is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect TinyFn, apply this rule, and every cube_root call is checked against it from then on.
Questions about cube_root
Calculate the cube root of a number. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
cube_root accepts 1 parameter: number. Required: number. The full parameter table on this page comes from the server's own tool schema.
Register the TinyFn MCP server in PolicyLayer and add a rule for cube_root: 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 TinyFn. Nothing to install.
cube_root 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 cube_root 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 cube_root. 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.
cube_root is provided by the TinyFn MCP server (https://api.tinyfn.io/mcp/all/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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