paper_size_reference
A read tool on the GadgetHumans API Hub MCP server.
This record as markdown: /tools/io-github-scotia1973-bot-api-hub/paper-size-reference.md
What paper_size_reference does on GadgetHumans API Hub
AI agents call paper_size_reference 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 paper_size_reference is rated Low
A paper size reference tool would retrieve standardized information about paper dimensions (A4, Letter, etc.) without modifying data or triggering external operations. The tool description is empty, reducing confidence slightly, but the context—a free utility API hub with read-only sibling tools—strongly suggests this is a reference lookup with no side effects.
From the tool's definition Tool name 'paper_size_reference' suggests a lookup or reference retrieval operation. The server description lists 'QR, passwords, UUIDs, hashing, base64, lorem, JSON' utilities—all informational/utility functions.
Attacks that exploit this kind of access
The rule that runs paper_size_reference 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 paper_size_reference, this is the rule to start with:
paper_size_reference 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 paper_size_reference call is checked against it from then on.
Questions about paper_size_reference
paper_size_reference is a read tool on the GadgetHumans API Hub MCP server. 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 paper_size_reference: 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.
paper_size_reference 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 paper_size_reference 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 paper_size_reference. 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.
paper_size_reference 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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