Browse smart campaigns in Marketo with optional filtering.
AI agents call browse_smart_campaigns 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.
This tool retrieves or lists smart campaigns from Marketo with optional filters applied. It has no side effects—it does not create, modify, delete, or execute any campaigns. Browsing is a read-only operation that returns information about existing assets without changing state. The low severity reflects minimal blast radius if misused by an AI agent, as it only exposes campaign metadata.
From the tool's definition Tool name 'browse_smart_campaigns' and description 'Browse smart campaigns in Marketo with optional filtering' indicate a query/retrieval operation with no modification or execution of campaigns.
Attacks that exploit this kind of access
Browse smart campaigns in Marketo with optional filtering. 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 browse_smart_campaigns: 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.
browse_smart_campaigns 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 browse_smart_campaigns 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 browse_smart_campaigns. 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.
browse_smart_campaigns 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.
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