Read a note from the vault by its relative path
AI agents call note_read to retrieve information from Mcp Obsidian Planner without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves data (a note) from the vault without creating, modifying, or deleting anything. It is a pure query operation with no side effects. The low severity reflects that reading notes from a personal planning vault poses minimal security risk unless the vault contains extremely sensitive information, but the default assumption for a note-reading tool is low impact.
From the tool's definition Tool name 'note_read' and description 'Read a note from the vault by its relative path' explicitly indicate retrieval without modification.
Attacks that exploit this kind of access
Read a note from the vault by its relative path. It is categorised as a Read tool in the Mcp Obsidian Planner MCP Server, which means it retrieves data without modifying state.
Register the Mcp Obsidian Planner MCP server in PolicyLayer and add a rule for note_read: 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 Mcp Obsidian Planner. Nothing to install.
note_read is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the note_read 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 note_read. 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.
note_read is provided by the Mcp Obsidian Planner MCP server (jarero321/mcp-obsidian-planner). 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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