Remove a file from a knowledge collection. The file itself is not deleted — only the collection membership is removed.
Part of the Dialogbrain server.
Free to start. No card required.
AI agents may call collections_remove_file to permanently remove or destroy resources in Dialogbrain. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. PolicyLayer blocks destructive tools by default and requires explicit human approval before enabling them.
Without a policy, an AI agent could call collections_remove_file in a loop, permanently destroying resources in Dialogbrain. There is no undo for destructive operations. PolicyLayer blocks this tool by default and only allows it when a human explicitly approves the action.
Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.
{
"version": "1",
"default": "deny",
"hide": [
"collections_remove_file"
]
}See the full Dialogbrain policy for all 157 tools.
These attack patterns abuse exactly the kind of access collections_remove_file gives an agent. Each links to the full case and the policy that stops it:
Other destructive tools across the catalogue. The same approach applies to each: deny by default, or require human approval.
Remove a file from a knowledge collection. The file itself is not deleted — only the collection membership is removed.. It is categorised as a Destructive tool in the Dialogbrain MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Dialogbrain MCP server in PolicyLayer and add a rule for collections_remove_file: 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 Dialogbrain. Nothing to install.
collections_remove_file 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 collections_remove_file 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 collections_remove_file. 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.
collections_remove_file is provided by the Dialogbrain MCP server (https://api.dialogbrain.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 157 Dialogbrain tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.