enroll_subscribers_in_sequence
Manually enroll subscribers in a sequence by email address or subscriber ID. Maximum 500 total targets per call across emails and subscriberIds. Only active subscribers are enrolled: unknown emails are returned in
This record as markdown: /tools/io-github-polnikale-sequenzy-mcp/enroll-subscribers-in-sequence.md
What enroll_subscribers_in_sequence does on Sequenzy Mcp
AI agents use enroll_subscribers_in_sequence 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.
Why enroll_subscribers_in_sequence is rated Medium
This tool creates or modifies data by enrolling subscribers into marketing sequences. While it has no financial or destructive consequences, it modifies subscriber records and triggers automated marketing actions. The high severity reflects that misuse could affect up to 500 subscribers per call, potentially causing unwanted email communications or disrupting legitimate marketing campaigns.
From the tool's definition Tool description explicitly states 'enroll subscribers in a sequence' and 'Manually enroll', indicating creation/modification of subscriber state in a marketing automation system.
Attacks that exploit this kind of access
The rule that runs enroll_subscribers_in_sequence 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 enroll_subscribers_in_sequence, this is the rule to start with:
enroll_subscribers_in_sequence 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Sequenzy Mcp, apply this rule, and every enroll_subscribers_in_sequence call is checked against it from then on.
Questions about enroll_subscribers_in_sequence
Manually enroll subscribers in a sequence by email address or subscriber ID. Maximum 500 total targets per call across emails and subscriberIds. Only active subscribers are enrolled: unknown emails are returned in. 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.
Register the Sequenzy MCP server in PolicyLayer and add a rule for enroll_subscribers_in_sequence: 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.
enroll_subscribers_in_sequence is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the enroll_subscribers_in_sequence 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.
Set action: deny in the PolicyLayer policy for enroll_subscribers_in_sequence. 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.
enroll_subscribers_in_sequence 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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