rank_numbers
Rank a list of numbers from largest to smallest (or vice versa).
This record as markdown: /tools/io-tinyfn-tinyfn/rank-numbers.md
What rank_numbers does on TinyFn
AI agents call rank_numbers 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 |
|---|---|---|---|
order | string | — | Order: 'asc' (smallest first) or 'desc' (largest first) |
numbers | string | Yes | Comma-separated numbers to rank |
Parameters from the server's own tool schema.
Why rank_numbers is rated Low
Ranking numbers is a pure computation that reads input, processes it, and returns results. No data is created, modified, deleted, executed, or committed. This is a classic Read operation—safe for use by AI agents even with adversarial input, as the output is constrained to numeric orderings.
From the tool's definition Tool 'rank_numbers' takes a list of numbers and ranks them; it retrieves/transforms data without modifying any state or triggering external operations. The description indicates a deterministic transformation of input data with no side effects.
Attacks that exploit this kind of access
The rule that runs rank_numbers 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 rank_numbers, this is the rule to start with:
rank_numbers 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 rank_numbers call is checked against it from then on.
Questions about rank_numbers
Rank a list of numbers from largest to smallest (or vice versa). It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.
rank_numbers accepts 2 parameters: order, numbers. Required: numbers. 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 rank_numbers: 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.
rank_numbers 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 rank_numbers 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 rank_numbers. 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.
rank_numbers 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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