obsidian-mcp-read-file
AI agents call obsidian-mcp-read-file to retrieve information from Vault MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries file data from the Obsidian vault with no side effects. The name unambiguously indicates a read-only operation. Even without a formal description, the naming convention is standard and reliable. The low severity reflects minimal blast radius: an AI reading vault files poses limited risk compared to write, execute, or destructive operations.
From the tool's definition Tool name 'obsidian-mcp-read-file' explicitly indicates a read operation. The verb 'read' combined with 'file' in the context of a vault/file management server clearly denotes retrieval of file contents without modification.
Documented attack patterns abuse exactly the kind of access obsidian-mcp-read-file gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Vault MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for obsidian-mcp-read-file:
{
"version": "1",
"default": "deny",
"tools": {
"obsidian-mcp-read-file": {}
}
}obsidian-mcp-read-file is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
obsidian-mcp-read-file. It is categorised as a Read tool in the Vault MCP MCP Server, which means it retrieves data without modifying state.
Register the Vault MCP server in PolicyLayer and add a rule for obsidian-mcp-read-file: 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 Vault MCP. Nothing to install.
obsidian-mcp-read-file 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 obsidian-mcp-read-file 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 obsidian-mcp-read-file. 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.
obsidian-mcp-read-file is provided by the Vault MCP server (jlevere/obsidian-mcp-plugin). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Vault MCP, 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.
8 Vault MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.