update_availability

Update the ${persona}

SERVERBusinys SOURCE@businys/mcp-server

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/app-businys-mcp-server/update-availability.md

WHAT IT DOES

What update_availability does on Businys

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

RISK

Why update_availability is rated Medium

This tool modifies existing data (availability settings for a professional) but does not delete data irreversibly or execute arbitrary code. It fits the Write category as a reversible data modification. Severity is medium because misuse could alter a professional's availability incorrectly, affecting their business operations and client interactions, but the change can be undone.

From the tool's definition Tool name 'update_availability' performs an update operation, which is a modification action. Description states 'Update the ${persona}' indicating it modifies user/professional profile data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_availability safely

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

update_availability Rate-limited

update_availability 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_availability": {
      "limits": [
        {
          "counter": "update_availability_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 Businys, apply this rule, and every update_availability call is checked against it from then on.

FAQ

Questions about update_availability

What does the update_availability tool do? +

Update the ${persona}. It is categorised as a Write tool in the Businys 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_availability? +

Register the Businys MCP server in PolicyLayer and add a rule for update_availability: 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 Businys. Nothing to install.

What risk level is update_availability? +

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

Can I rate-limit update_availability? +

Yes. Add a rate_limit block to the update_availability 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_availability completely? +

Set action: deny in the PolicyLayer policy for update_availability. 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_availability? +

update_availability is provided by the Businys MCP server (@businys/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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