AI agents call round_number to retrieve information from TinyFn without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
number | number | Yes | The number to round |
decimals | integer | — | Number of decimal places |
Parameters from the server's own tool schema.
This is a deterministic math operation. It retrieves a computed result from numeric input with no ability to modify data, execute code, trigger external systems, delete anything, or move money. Confidence is high because the description is clear and the purpose is benign.
From the tool's definition Tool is 'Round a number to specified decimal places' — a pure mathematical function that reads/transforms input numerically without side effects, state changes, or external operations.
Attacks that exploit this kind of access
Round a number to specified decimal places. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
round_number accepts 2 parameters: number, decimals. 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 round_number: 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.
round_number 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 round_number 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 round_number. 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.
round_number 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.
round_number is one line of TinyFn's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →