[CUSTOM] Calls the Marketo REST API directly (not Adobe's native MCP).
AI agents call custom_discard_snippet_draft to permanently remove resources in Marketo MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Discarding a draft permanently destroys unpublished content that cannot be recovered. This is an irreversible deletion of work-in-progress data. The description is sparse but the tool name clearly indicates a destructive discard operation on a Marketo snippet draft. Confidence is slightly reduced because the description is minimal and the exact API behavior is inferred from the name.
From the tool's definition 'discard_snippet_draft' — discarding a draft is an irreversible action that permanently removes unsaved draft content; combined with 'Calls the Marketo REST API directly'
Attacks that exploit this kind of access
[CUSTOM] Calls the Marketo REST API directly (not Adobe's native MCP). It is categorised as a Destructive tool in the Marketo MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Marketo MCP Server MCP server in PolicyLayer and add a rule for custom_discard_snippet_draft: 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_discard_snippet_draft is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the custom_discard_snippet_draft 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_discard_snippet_draft. 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_discard_snippet_draft 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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