Move a note to trash
AI agents call trash_note to permanently remove resources in MCP Bear — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Moving a note to trash is effectively a destructive action: the note is removed from the user's active notes and placed in trash, which is typically not immediately reversible through the MCP interface. While some trash implementations allow recovery, trashing is the standard precursor to permanent deletion and is more severe than a simple write/update.
From the tool's definition trash_note — 'Move a note to trash'
Attacks that exploit this kind of access
Move a note to trash. It is categorised as a Destructive tool in the MCP Bear MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the MCP Bear MCP server in PolicyLayer and add a rule for trash_note: 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 Bear. Nothing to install.
trash_note 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 trash_note 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 trash_note. 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.
trash_note is provided by the MCP Bear MCP server (maxim-ist/mcp-bear). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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