percentage_calc
Perform percentage calculations (of, change, increase, decrease, is_what_percent).
This record as markdown: /tools/io-github-malamutemayhem-unclick-mcp-server/percentage-calc.md
What percentage_calc does on UnClick
AI agents call percentage_calc to retrieve information from UnClick 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 |
|---|---|---|---|
a | number | Yes | First number. |
b | number | Yes | Second number. |
operation | string | — | Operation: of, is_what_percent, change, increase, decrease (default of). |
Parameters from the server's own tool schema.
Why percentage_calc is rated Low
This is a pure computational utility that takes numeric inputs and returns calculated results. It retrieves or computes data without modifying state, deleting information, executing arbitrary code, or triggering financial transactions. The operations are deterministic mathematical functions with no blast radius if misused by an AI agent.
From the tool's definition Tool performs mathematical calculations on percentages ("of, change, increase, decrease, is_what_percent") with no side effects, data modification, or external operation triggers.
Attacks that exploit this kind of access
The rule that runs percentage_calc safely
PolicyLayer is an MCP gateway: it sits between your AI agents and UnClick, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For percentage_calc, this is the rule to start with:
percentage_calc 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 UnClick, apply this rule, and every percentage_calc call is checked against it from then on.
Questions about percentage_calc
Perform percentage calculations (of, change, increase, decrease, is_what_percent). It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
percentage_calc accepts 3 parameters: a, b, operation. Required: a, b. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for percentage_calc: 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 UnClick. Nothing to install.
percentage_calc 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 percentage_calc 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 percentage_calc. 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.
percentage_calc is provided by the UnClick MCP server (@unclick/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on UnClick, and thousands of servers like it.
This server
Across the catalogue