[CUSTOM] Calls the Marketo REST API directly (not Adobe's native MCP).
AI agents call custom_list_activity_export_jobs to retrieve information from Marketo MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool lists or retrieves the status/metadata of activity export jobs rather than creating, modifying, deleting, or executing jobs. It is a read-only query operation with no side effects. The 'custom' prefix suggests direct API access but does not change the underlying action. Severity is low because listing export jobs poses minimal risk even if misused by an agent.
From the tool's definition Tool name 'custom_list_activity_export_jobs' indicates querying/listing export jobs; description states it 'Calls the Marketo REST API directly' for what appears to be a retrieval operation based on the 'list' verb and 'export_jobs' object.
Attacks that exploit this kind of access
[CUSTOM] Calls the Marketo REST API directly (not Adobe's native MCP). It is categorised as a Read tool in the Marketo MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Marketo MCP Server MCP server in PolicyLayer and add a rule for custom_list_activity_export_jobs: 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 Marketo MCP Server. Nothing to install.
custom_list_activity_export_jobs 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 custom_list_activity_export_jobs 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 custom_list_activity_export_jobs. 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.
custom_list_activity_export_jobs is provided by the Marketo MCP Server MCP server (tyron-pretorius/marketo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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