Read multiple notes in a single call to reduce round trips.
AI agents call read_notes_batch to retrieve information from Obsidian Knowledge Management MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves vault markdown file contents in batch, functioning as a read-only operation with no side effects. It queries and fetches data from the Obsidian vault without creating, modifying, or destroying information. The optimization for batch reading does not change its fundamental read-only nature.
From the tool's definition Tool name 'read_notes_batch' and description 'Read multiple notes in a single call to reduce round trips' indicate retrieval of data without modification or deletion.
Attacks that exploit this kind of access
Read multiple notes in a single call to reduce round trips. It is categorised as a Read tool in the Obsidian Knowledge Management MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Obsidian Knowledge Management MCP Server MCP server in PolicyLayer and add a rule for read_notes_batch: 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 Knowledge Management MCP Server. Nothing to install.
read_notes_batch 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 read_notes_batch 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 read_notes_batch. 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.
read_notes_batch is provided by the Obsidian Knowledge Management MCP Server MCP server (theoutcastvirus/obsidian-knowledge-mcp). 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.
Teams ship this data inside their own products. See what a licence covers →