delete_by_source

Delete all documents from a specific source.

SERVERMCP RAG Server SOURCE0xrdan/mcp-rag-server

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/0xrdan-mcp-rag-server/delete-by-source.md

WHAT IT DOES

What delete_by_source does on MCP RAG Server

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

RISK

Why delete_by_source is rated Critical

This tool permanently removes all documents associated with a given source from the knowledge base. Deletion is irreversible and cannot be undone through normal operations, making it Destructive rather than Write. The blast radius is high: an AI agent with access to this tool could wipe out entire sections of a knowledge base if it misidentifies or is tricked into targeting the wrong source.

From the tool's definition Tool name 'delete_by_source' combined with description 'Delete all documents from a specific source' — uses imperative 'delete' indicating irreversible removal of data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs delete_by_source safely

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

delete_by_source Hidden

delete_by_source 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_by_source"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about delete_by_source

What does the delete_by_source tool do? +

Delete all documents from a specific source. It is categorised as a Destructive tool in the MCP RAG 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_by_source? +

Register the MCP RAG Server MCP server in PolicyLayer and add a rule for delete_by_source: 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 MCP RAG Server. Nothing to install.

What risk level is delete_by_source? +

delete_by_source 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_by_source? +

Yes. Add a rate_limit block to the delete_by_source 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_by_source completely? +

Set action: deny in the PolicyLayer policy for delete_by_source. 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_by_source? +

delete_by_source is provided by the MCP RAG Server MCP server (0xrdan/mcp-rag-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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