// MCP TOOL REFERENCE

delete_attachment

ServerPega DX MCP Server
CategoryDestructive

WHAT IT DOES

What delete_attachment does on Pega DX MCP Server

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

THE RISK

Critical Risk

Why delete_attachment needs a policy

This tool permanently removes attachments from cases in Pega Platform. While the description notes that only the specific link is removed if an attachment is linked to multiple objects, the attachment data itself is deleted and cannot be recovered through normal means. This is an irreversible operation affecting stored documents/evidence in business cases, making it Destructive rather than Write.

From the tool's definition Tool name is 'delete_attachment' and description states 'Remove the specified attachment from a case' and 'After successful deletion, the case history is updated.' The verb 'delete' and phrase 'successful deletion' indicate irreversible removal of data.

Documented attack patterns abuse exactly the kind of access delete_attachment gives an agent:

POLICY

How to control delete_attachment

PolicyLayer is an MCP gateway — it sits between your AI agents and Pega DX MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for delete_attachment:

policy.json

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

delete_attachment disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Pega DX MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Pega DX MCP Server tools

Destructive delete_case Delete a case that is currently in the create stage Destructive delete_case_follower Remove a follower from a case, ending their subscription to case notifications and updates Destructive delete_case_tag Delete a specific tag from a case by case ID and tag ID Destructive delete_data_record Delete a data record based on conditional save plan configured for a savable Data Page. On Destructive delete_participant Delete a participant from a Pega case by case ID and participant ID. If no eTag is provide Destructive delete_related_case Remove related work association between two cases by deleting a specific relationship Destructive remove_case_document Remove a document that is linked to a specific Pega case. This operation permanently remov Execute navigate_assignment_previous Navigate back to the previously visited step in a screen flow or multi-step form assignmen

All 65 Pega DX MCP Server tools →

Destructive tools on other servers

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Go deeper

Critical-risk tools in Pega DX MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about delete_attachment

What does the delete_attachment tool do? +

Remove the specified attachment from a case. The API validates user authentication and privileges to delete the attachment based on attachment category configuration. Users can delete attachments they uploaded or any attachment of categories they have delete privileges for. After successful deletion, the case history is updated. If an attachment is linked to multiple Link-Attachment objects, only the specific link is removed. It is categorised as a Destructive tool in the Pega DX MCP Server 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 Pega DX MCP Server 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 Pega DX MCP Server. 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 Pega DX MCP Server MCP server (marco-looy/pega-dx-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Pega DX MCP Server tool call.

Start from Pega DX MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →

Free to start. No card required.

65 Pega DX MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.