set_primary_calendar

Set the authenticated caller

SERVERHuly SOURCE@firfi/huly-mcp

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/io-github-dearlordylord-huly-mcp/set-primary-calendar.md

WHAT IT DOES

What set_primary_calendar does on Huly

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

RISK

Why set_primary_calendar is rated Medium

Modifies user calendar settings reversibly; affects authenticated user's configuration.

From the tool's definition Set the authenticated caller; modifies user calendar configuration

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs set_primary_calendar safely

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

set_primary_calendar Rate-limited

set_primary_calendar 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": {
    "set_primary_calendar": {
      "limits": [
        {
          "counter": "set_primary_calendar_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 Huly, apply this rule, and every set_primary_calendar call is checked against it from then on.

FAQ

Questions about set_primary_calendar

What does the set_primary_calendar tool do? +

Set the authenticated caller. It is categorised as a Write tool in the Huly MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_primary_calendar? +

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

What risk level is set_primary_calendar? +

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

Can I rate-limit set_primary_calendar? +

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

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

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

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