Critical Risk →

bear-delete-tag

Delete a tag from all notes in your Bear library. Removes the tag but preserves the notes themselves. Use bear-list-tags first to see existing tags.

How to control bear-delete-tag ↓

AI agents call bear-delete-tag to permanently remove resources in Bear Notes — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

Critical Risk

This tool performs an irreversible deletion operation (remove tag from all notes) that cannot be undone. Although the notes themselves persist, the destruction of tag metadata across the library qualifies it as Destructive rather than Write. The high severity reflects the broad blast radius—a single invocation affects all notes tagged with that tag, and the operation cannot be reversed.

From the tool's definition "Delete a tag from all notes in your Bear library. Removes the tag but preserves the notes themselves." The tool irreversibly deletes a tag across all notes in the library; while notes are preserved, the tag deletion cannot be undone and affects the…

Documented attack patterns abuse exactly the kind of access bear-delete-tag gives an agent:

PolicyLayer is an MCP gateway — it sits between your AI agents and Bear Notes, and nothing reaches the server without passing your rules. This is the rule we recommend for bear-delete-tag:

policy.json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "bear-delete-tag"
  ]
}

bear-delete-tag 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 Bear Notes — 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.
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Go deeper

What does the bear-delete-tag tool do? +

Delete a tag from all notes in your Bear library. Removes the tag but preserves the notes themselves. Use bear-list-tags first to see existing tags. It is categorised as a Destructive tool in the Bear Notes 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 bear-delete-tag? +

Register the Bear Notes MCP server in PolicyLayer and add a rule for bear-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 Notes. Nothing to install.

What risk level is bear-delete-tag? +

bear-delete-tag 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 bear-delete-tag? +

Yes. Add a rate_limit block to the bear-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.

How do I block bear-delete-tag completely? +

Set action: deny in the PolicyLayer policy for bear-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.

What MCP server provides bear-delete-tag? +

bear-delete-tag is provided by the Bear Notes MCP server (vasylenko/bear-notes-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Bear Notes tool call.

Deterministic rules across all 13 Bear Notes tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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13 Bear Notes tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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