update_subscriber

Update an existing subscriber

SERVERSequenzy Mcp SOURCESequenzy/mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/io-github-polnikale-sequenzy-mcp/update-subscriber.md

WHAT IT DOES

What update_subscriber does on Sequenzy Mcp

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

RISK

Why update_subscriber is rated Medium

This tool creates or modifies data reversibly by updating subscriber information (email, preferences, custom fields, etc.). It does not delete data (would be Destructive) or execute arbitrary code (would be Execute). The modification is reversible—subscriber data can be updated again.

From the tool's definition Tool name is 'update_subscriber' and description states 'Update an existing subscriber', which modifies existing data in the email marketing system.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_subscriber safely

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

update_subscriber Rate-limited

update_subscriber 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_subscriber": {
      "limits": [
        {
          "counter": "update_subscriber_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 Sequenzy Mcp, apply this rule, and every update_subscriber call is checked against it from then on.

FAQ

Questions about update_subscriber

What does the update_subscriber tool do? +

Update an existing subscriber. It is categorised as a Write tool in the Sequenzy Mcp 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_subscriber? +

Register the Sequenzy MCP server in PolicyLayer and add a rule for update_subscriber: 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 Sequenzy Mcp. Nothing to install.

What risk level is update_subscriber? +

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

Can I rate-limit update_subscriber? +

Yes. Add a rate_limit block to the update_subscriber 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_subscriber completely? +

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

update_subscriber is provided by the Sequenzy MCP server (Sequenzy/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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