This record as markdown: /tools/io-tinyfn-tinyfn/square.md
What square does on TinyFn
AI agents call square 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 square |
Parameters from the server's own tool schema.
Why square is rated Low
This is a deterministic mathematical function that takes a number as input and returns its square. It retrieves/computes a value without modifying state, deleting data, executing external code, or affecting other systems. It fits the Read category as a query-like operation with no side effects.
From the tool's definition Tool name 'square' and description 'Calculate the square of a number' indicate a pure mathematical computation with no side effects, no data modification, and no external operations.
Attacks that exploit this kind of access
The rule that runs square 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 square, this is the rule to start with:
square 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 square call is checked against it from then on.
Questions about square
Calculate the square of a number. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
square 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 square: 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.
square 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 square 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 square. 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.
square 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.
More on TinyFn, and thousands of servers like it.
This server
Across the catalogue