percentage_change_calc
Calculate the percentage change between two values.
This record as markdown: /tools/io-github-scotia1973-bot-api-hub/percentage-change-calc.md
What percentage_change_calc does on GadgetHumans API Hub
AI agents call percentage_change_calc to retrieve information from GadgetHumans API Hub without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why percentage_change_calc is rated Low
This is a stateless mathematical function with no side effects, no data persistence, no external calls, and no destructive or financial implications. It belongs in the Read category as a query-like utility function. Severity is low because misuse (e.g., providing wrong inputs) has no blast radius beyond an incorrect output.
From the tool's definition Tool name 'percentage_change_calc' and description 'Calculate the percentage change between two values' indicate a pure calculation utility that retrieves no data, modifies nothing, and executes no external operations—only mathematical computation on provided…
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The rule that runs percentage_change_calc safely
PolicyLayer is an MCP gateway: it sits between your AI agents and GadgetHumans API Hub, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For percentage_change_calc, this is the rule to start with:
percentage_change_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 GadgetHumans API Hub, apply this rule, and every percentage_change_calc call is checked against it from then on.
Questions about percentage_change_calc
Calculate the percentage change between two values. It is categorised as a Read tool in the GadgetHumans API Hub MCP Server, which means it retrieves data without modifying state.
Register the GadgetHumans API Hub MCP server in PolicyLayer and add a rule for percentage_change_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 GadgetHumans API Hub. Nothing to install.
percentage_change_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_change_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_change_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_change_calc is provided by the GadgetHumans API Hub MCP server (pypi:gadgethumans-api-hub-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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