Get metadata for a specific note or all notes in the vault
AI agents call get-note-metadata to retrieve information from Obsidian 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 metadata about notes—a read-only operation with no side effects. It does not create, modify, delete, or execute operations. The metadata retrieval has minimal blast radius if misused by an AI agent, as it only exposes note information that exists in the vault without altering state.
From the tool's definition Tool name 'get-note-metadata' and description 'Get metadata for a specific note or all notes in the vault' indicates retrieval of metadata information without modification or deletion.
Documented attack patterns abuse exactly the kind of access get-note-metadata gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Obsidian MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get-note-metadata:
{
"version": "1",
"default": "deny",
"tools": {
"get-note-metadata": {}
}
}get-note-metadata is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get metadata for a specific note or all notes in the vault. It is categorised as a Read tool in the Obsidian MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Obsidian MCP Server MCP server in PolicyLayer and add a rule for get-note-metadata: 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 Server. Nothing to install.
get-note-metadata 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 get-note-metadata 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 get-note-metadata. 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.
get-note-metadata is provided by the Obsidian MCP Server MCP server (piotr1215/mcp-obsidian). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Obsidian MCP Server, 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.
9 Obsidian MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.