delete_attachment

Delete an attachment from a record (requires WRITE_ENABLED=true)

SERVERServiceNow-MCP SOURCEtedorigawa001/servicenow-mcp

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/tedorigawa001-servicenow-mcp/delete-attachment.md

WHAT IT DOES

What delete_attachment does on ServiceNow-MCP

AI agents call delete_attachment to permanently remove resources in ServiceNow-MCP, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why delete_attachment is rated Critical

This tool permanently removes an attachment, which cannot be undone. Although attachments are typically lower-risk than core record data, deletion is irreversible and constitutes a destructive action. The requirement for WRITE_ENABLED=true indicates it's a sensitive operation. Destructive is more severe than Write, so it takes precedence over the write capability needed to execute it.

From the tool's definition The tool name is 'delete_attachment' and the description states it will 'Delete an attachment from a record'. The verb 'delete' indicates irreversible removal of data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs delete_attachment safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ServiceNow-MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For delete_attachment, this is the rule to start with:

delete_attachment Hidden

delete_attachment is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_attachment"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ServiceNow-MCP, apply this rule, and every delete_attachment call is checked against it from then on.

FAQ

Questions about delete_attachment

What does the delete_attachment tool do? +

Delete an attachment from a record (requires WRITE_ENABLED=true). It is categorised as a Destructive tool in the ServiceNow-MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on delete_attachment? +

Register the ServiceNow MCP server in PolicyLayer and add a rule for delete_attachment: 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 ServiceNow-MCP. Nothing to install.

What risk level is delete_attachment? +

delete_attachment is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit delete_attachment? +

Yes. Add a rate_limit block to the delete_attachment 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.

How do I block delete_attachment completely? +

Set action: deny in the PolicyLayer policy for delete_attachment. 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.

What MCP server provides delete_attachment? +

delete_attachment is provided by the ServiceNow MCP server (tedorigawa001/servicenow-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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