percentile
Percentile Calculator — Value at a given percentile, or the percentile rank of a value, over a dataset.
This record as markdown: /tools/com-wingmanprotocol-agent-gateway/percentile.md
What percentile does on Gateway
AI agents call percentile to retrieve information from Gateway 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 |
|---|---|---|---|
value | number | — | A value (returns its percentile rank) |
numbers | array | Yes | Non-empty numeric dataset |
percentile | number | — | Percentile 0..100 (returns the value there) |
Parameters from the server's own tool schema.
Why percentile is rated Low
The percentile calculator is a pure computational tool that analyzes and returns statistical metrics from data without side effects. It retrieves derived information (percentile values or ranks) from an input dataset without creating, modifying, deleting, or executing external operations. This is a classic Read operation.
From the tool's definition Tool performs statistical calculation on a dataset to retrieve either 'Value at a given percentile' or 'the percentile rank of a value'. These are read-only queries with no data modification, deletion, or execution of arbitrary code.
Attacks that exploit this kind of access
The rule that runs percentile safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Gateway, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For percentile, this is the rule to start with:
percentile 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 Gateway, apply this rule, and every percentile call is checked against it from then on.
Questions about percentile
Percentile Calculator — Value at a given percentile, or the percentile rank of a value, over a dataset. It is categorised as a Read tool in the Gateway MCP Server, which means it retrieves data without modifying state.
percentile accepts 3 parameters: value, numbers, percentile. Required: numbers. The full parameter table on this page comes from the server's own tool schema.
Register the Gateway MCP server in PolicyLayer and add a rule for percentile: 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 Gateway. Nothing to install.
percentile 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 percentile 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 percentile. 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.
percentile is provided by the Gateway MCP server (https://wingmanprotocol.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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