Critical Risk →

delete_document

Delete a document from the Chroma vector database by its ID

How to control delete_document ↓

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

Critical Risk

The tool permanently removes documents from persistent storage with no undo capability. This is a destructive operation that cannot be reversed once executed. Severity is high rather than critical because the blast radius is limited to a single document or set of documents within the vector database, and does not directly impact external systems or multiple users' data simultaneously.

From the tool's definition Tool name 'delete_document' and description 'Delete a document from the Chroma vector database by its ID' explicitly indicate irreversible removal of data.

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

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

policy.json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_document"
  ]
}

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

  1. Create a free account and register Chroma MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RESTRICT THIS TOOL →

Free to start. No card required.

Go deeper

What does the delete_document tool do? +

Delete a document from the Chroma vector database by its ID. It is categorised as a Destructive tool in the Chroma 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_document? +

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

What risk level is delete_document? +

delete_document 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_document? +

Yes. Add a rate_limit block to the delete_document 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_document completely? +

Set action: deny in the PolicyLayer policy for delete_document. 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_document? +

delete_document is provided by the Chroma MCP Server MCP server (privetin/chroma). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Chroma MCP Server tool call.

Deterministic rules across all 6 Chroma MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

6 Chroma MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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