calendar-rsvp

RSVP to a calendar event (NIP-52, kind 31925). Pass the event coordinate (kind:pubkey:d-tag format) and your status.

SERVERNostr Bray SOURCEnostr-bray

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/dev-forgesworn-bray/calendar-rsvp.md

WHAT IT DOES

What calendar-rsvp does on Nostr Bray

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

RISK

Why calendar-rsvp is rated Medium

This tool creates or modifies an RSVP response (kind 31925 Nostr event) for a calendar event. It writes data to the Nostr network but does not delete anything, execute code, or involve financial transactions. Misuse could result in unwanted RSVPs being posted on behalf of a user, but the blast radius is low.

From the tool's definition RSVP to a calendar event... Pass the event coordinate and your status

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs calendar-rsvp safely

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

calendar-rsvp Rate-limited

calendar-rsvp 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": {
    "calendar-rsvp": {
      "limits": [
        {
          "counter": "calendar-rsvp_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 Nostr Bray, apply this rule, and every calendar-rsvp call is checked against it from then on.

FAQ

Questions about calendar-rsvp

What does the calendar-rsvp tool do? +

RSVP to a calendar event (NIP-52, kind 31925). Pass the event coordinate (kind:pubkey:d-tag format) and your status. It is categorised as a Write tool in the Nostr Bray MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on calendar-rsvp? +

Register the Nostr Bray MCP server in PolicyLayer and add a rule for calendar-rsvp: 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 Nostr Bray. Nothing to install.

What risk level is calendar-rsvp? +

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

Can I rate-limit calendar-rsvp? +

Yes. Add a rate_limit block to the calendar-rsvp 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 calendar-rsvp completely? +

Set action: deny in the PolicyLayer policy for calendar-rsvp. 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 calendar-rsvp? +

calendar-rsvp is provided by the Nostr Bray MCP server (nostr-bray). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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