search_subscribers
Search subscribers by free-text query, tags, list, segment, custom attribute, or opt-out date. Each subscriber carries unsubscribedAt, the date the contact opted out - use it rather than updatedAt, which any later tag or attribute write overwrites. If you omit limit, the tool fetches all pages an...
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What search_subscribers does on Sequenzy Mcp
AI agents call search_subscribers to retrieve information from Sequenzy Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why search_subscribers is rated Low
Retrieves subscriber data without modification; medium severity due to potential exposure of personal email and attribute information.
From the tool's definition Search subscribers by free-text query, tags, list, segment, custom attribute
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs search_subscribers 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 search_subscribers, this is the rule to start with:
search_subscribers is read-only, so it stays allowed. 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 search_subscribers call is checked against it from then on.
Questions about search_subscribers
Search subscribers by free-text query, tags, list, segment, custom attribute, or opt-out date. Each subscriber carries unsubscribedAt, the date the contact opted out - use it rather than updatedAt, which any later tag or attribute write overwrites. If you omit limit, the tool fetches all pages and returns every match in one call - that is the fastest way to enumerate an audience. To walk a large audience in chunks instead, pass limit and then follow pagination.nextCursor (or pagination.nextOffset) until pagination.hasMore is false. Default searches are newest first; searches with attribute use stable subscriber-ID ascending order. It is categorised as a Read tool in the Sequenzy Mcp MCP Server, which means it retrieves data without modifying state.
Register the Sequenzy MCP server in PolicyLayer and add a rule for search_subscribers: 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.
search_subscribers is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the search_subscribers 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 search_subscribers. 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.
search_subscribers 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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