Low Risk

bear-open-note

Read the full text content of a Bear note by its ID or title. Supports direct title lookup as an alternative to searching first. Always includes text extracted from attached images and PDFs (aka OCR search) with clear labeling. Response includes the note

How to control bear-open-note ↓

AI agents call bear-open-note to retrieve information from Bear Notes without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

This tool retrieves and returns the content of a note without modifying, creating, or deleting anything. It is a pure read operation with minimal blast radius.

From the tool's definition Read the full text content of a Bear note by its ID or title

Documented attack patterns abuse exactly the kind of access bear-open-note 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-open-note:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "bear-open-note": {}
  }
}

bear-open-note is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  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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Free to start. No card required.

Go deeper

What does the bear-open-note tool do? +

Read the full text content of a Bear note by its ID or title. Supports direct title lookup as an alternative to searching first. Always includes text extracted from attached images and PDFs (aka OCR search) with clear labeling. Response includes the note. It is categorised as a Read tool in the Bear Notes MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on bear-open-note? +

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

What risk level is bear-open-note? +

bear-open-note is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit bear-open-note? +

Yes. Add a rate_limit block to the bear-open-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.

How do I block bear-open-note completely? +

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

What MCP server provides bear-open-note? +

bear-open-note 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.

Free to start. No card required.

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

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