read_multiple_notes

THE RISK

Low Risk

Why read_multiple_notes needs a policy

This tool performs a read-only query operation on an Obsidian knowledge base, retrieving note content without side effects. It matches the 'Read' category definition: retrieves or queries data with no side effects. The blast radius of misuse is minimal—an agent could access notes it shouldn't, but cannot modify, delete, or execute operations.

From the tool's definition Tool name 'read_multiple_notes' and description 'Read content from multiple notes simultaneously' explicitly indicate data retrieval with no modification or deletion.

Documented attack patterns abuse exactly the kind of access read_multiple_notes gives an agent:

POLICY

How to control read_multiple_notes

PolicyLayer is an MCP gateway — it sits between your AI agents and Enhanced Obsidian MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for read_multiple_notes:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "read_multiple_notes": {}
  }
}

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

Create a free account and register Enhanced Obsidian MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

Related tools and policies

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All 25 Enhanced Obsidian MCP Server tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about read_multiple_notes

What does the read_multiple_notes tool do? +

Read content from multiple notes simultaneously. It is categorised as a Read tool in the Enhanced Obsidian MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on read_multiple_notes? +

Register the Enhanced Obsidian MCP Server MCP server in PolicyLayer and add a rule for read_multiple_notes: 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 Enhanced Obsidian MCP Server. Nothing to install.

What risk level is read_multiple_notes? +

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

Can I rate-limit read_multiple_notes? +

Yes. Add a rate_limit block to the read_multiple_notes 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 read_multiple_notes completely? +

Set action: deny in the PolicyLayer policy for read_multiple_notes. 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 read_multiple_notes? +

read_multiple_notes is provided by the Enhanced Obsidian MCP Server MCP server (jianruidutong/obsidian-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Enhanced Obsidian MCP Server tool call.

Start from Enhanced Obsidian MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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