create_blackout

Create a new blackout date range when unavailable.

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/create-blackout.md

WHAT IT DOES

What create_blackout does on Businys

AI agents use create_blackout 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 create_blackout is rated Medium

This tool creates a new scheduling/availability record (blackout dates), which is a reversible write operation. It does not execute code, delete data permanently, move money, or read sensitive data. The impact is limited to the user's own availability calendar. Severity is low because misuse would only affect the user's own scheduling and can be easily undone by deleting or modifying the blackout period.

From the tool's definition Tool name 'create_blackout' and description 'Create a new blackout date range when unavailable' indicate creation of a new data record representing unavailability periods.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_blackout 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 create_blackout, this is the rule to start with:

create_blackout Rate-limited

create_blackout 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": {
    "create_blackout": {
      "limits": [
        {
          "counter": "create_blackout_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 create_blackout call is checked against it from then on.

FAQ

Questions about create_blackout

What does the create_blackout tool do? +

Create a new blackout date range when unavailable. 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 create_blackout? +

Register the Businys MCP server in PolicyLayer and add a rule for create_blackout: 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 create_blackout? +

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

Can I rate-limit create_blackout? +

Yes. Add a rate_limit block to the create_blackout 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 create_blackout completely? +

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

create_blackout 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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