rescan
Search the network again for new, moved or previously unreachable devices. Takes up to 20 seconds.
This record as markdown: /tools/tolpo/rescan.md
What rescan does on Tolpo
AI agents call rescan to retrieve information from Tolpo without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why rescan is rated Low
Even though rescan only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs rescan safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Tolpo, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For rescan, this is the rule to start with:
rescan 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 Tolpo, apply this rule, and every rescan call is checked against it from then on.
Questions about rescan
Search the network again for new, moved or previously unreachable devices. Takes up to 20 seconds. It is categorised as a Read tool in the Tolpo MCP Server, which means it retrieves data without modifying state.
Register the Tolpo MCP server in PolicyLayer and add a rule for rescan: 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 Tolpo. Nothing to install.
rescan 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 rescan 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 rescan. 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.
rescan is provided by the Tolpo MCP server (signerless/tolpo). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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