update_device_notes

Set free-text notes on a device by serial number (max 256 chars).

SERVERAPI-Central SOURCEsecure-ssid/centralmcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/secure-ssid-centralmcp/update-device-notes.md

WHAT IT DOES

What update_device_notes does on API-Central

AI agents use update_device_notes to create or update resources in API-Central, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your API-Central environment.

RISK

Why update_device_notes is rated Medium

This tool creates or modifies data (device notes) in a reversible manner. It does not read sensitive information without modification, execute commands, delete data, or move financial resources. The blast radius of misuse is minimal—an attacker could add misleading notes but cannot disrupt network operations, access credentials, or cause data loss.

From the tool's definition Tool description states 'Set free-text notes on a device' — 'set' indicates a modification operation. The action is explicitly reversible (notes can be updated or cleared), limited in scope (single device, max 256 chars), and affects only metadata without…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_device_notes safely

PolicyLayer is an MCP gateway: it sits between your AI agents and API-Central, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For update_device_notes, this is the rule to start with:

update_device_notes Rate-limited

update_device_notes stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_device_notes": {
      "limits": [
        {
          "counter": "update_device_notes_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect API-Central, apply this rule, and every update_device_notes call is checked against it from then on.

FAQ

Questions about update_device_notes

What does the update_device_notes tool do? +

Set free-text notes on a device by serial number (max 256 chars). It is categorised as a Write tool in the API-Central MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_device_notes? +

Register the API-Central MCP server in PolicyLayer and add a rule for update_device_notes: 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 API-Central. Nothing to install.

What risk level is update_device_notes? +

update_device_notes is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit update_device_notes? +

Yes. Add a rate_limit block to the update_device_notes 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.

How do I block update_device_notes completely? +

Set action: deny in the PolicyLayer policy for update_device_notes. 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.

What MCP server provides update_device_notes? +

update_device_notes is provided by the API-Central MCP server (secure-ssid/centralmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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