Delete a tag from all Bear notes
AI agents call delete_tag to permanently remove resources in Bear MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Deleting a tag removes metadata structure from potentially many notes at once. While not deleting note content directly, tag deletion is irreversible and affects the organizational integrity of the note system. This qualifies as Destructive rather than Write because the operation cannot be easily undone and has cascading effects across all notes using that tag.
From the tool's definition Tool name 'delete_tag' combined with description 'Delete a tag from all Bear notes' indicates irreversible removal of data across multiple notes. The action cannot be undone and affects an organization structure used across the entire note database.
Attacks that exploit this kind of access
Delete a tag from all Bear notes. It is categorised as a Destructive tool in the Bear MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Bear MCP Server MCP server in PolicyLayer and add a rule for delete_tag: 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 Bear MCP Server. Nothing to install.
delete_tag 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 delete_tag 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 delete_tag. 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.
delete_tag is provided by the Bear MCP Server MCP server (quanticsoul4772/bear-mcp). 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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