Low Risk

read_base

Return the parsed contents of a Base file: filters, properties, view definitions, and any unrecognized fields. Use to discover what queries a Base supports before calling query_base.

How to control read_base ↓

What read_base does on Obsidian Mcp Pro

AI agents call read_base to retrieve information from Obsidian Mcp Pro without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why read_base needs a policy

This tool retrieves and parses data from a Base file to expose its structure (filters, properties, view definitions). It performs no modifications, deletions, or external operations. The purpose is informational — to help understand what can be queried — making it a straightforward Read category tool with low severity impact.

From the tool's definition Tool description states 'Return the parsed contents of a Base file' and 'Use to discover what queries a Base supports' — both indicate retrieval without modification.

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

How to control read_base

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "read_base": {}
  }
}

read_base 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 Obsidian Mcp Pro — 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.
CAP THIS TOOL →

Free to start. No card required.

Related tools and policies

Go deeper

Questions about read_base

What does the read_base tool do? +

Return the parsed contents of a Base file: filters, properties, view definitions, and any unrecognized fields. Use to discover what queries a Base supports before calling query_base. It is categorised as a Read tool in the Obsidian Mcp Pro MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on read_base? +

Register the Obsidian Mcp Pro MCP server in PolicyLayer and add a rule for read_base: 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 Obsidian Mcp Pro. Nothing to install.

What risk level is read_base? +

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

Can I rate-limit read_base? +

Yes. Add a rate_limit block to the read_base 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_base completely? +

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

read_base is provided by the Obsidian Mcp Pro MCP server (rps321321/obsidian-mcp-pro). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Obsidian Mcp Pro tool call.

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

Free to start. No card required.

41 Obsidian Mcp Pro tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

// GET IN TOUCH

Have a question or want to learn more? Send us a message.

Message sent.

We'll get back to you soon.