Find notes that have no incoming or outgoing links
AI agents call find_orphan_notes to retrieve information from Enhanced 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 and analyzes metadata about note relationships in the Obsidian vault (checking link status) with no side effects. It is purely informational—suitable for discovery and auditing of vault structure. The operation is read-only and poses minimal risk even if called by an AI agent with arbitrary parameters.
From the tool's definition Tool name and description indicate a search/query operation: 'Find notes that have no incoming or outgoing links' performs analysis without modification. No data is created, modified, deleted, or executed.
Documented attack patterns abuse exactly the kind of access find_orphan_notes gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Enhanced Obsidian MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for find_orphan_notes:
{
"version": "1",
"default": "deny",
"tools": {
"find_orphan_notes": {}
}
} find_orphan_notes is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Find notes that have no incoming or outgoing links. It is categorised as a Read tool in the Enhanced Obsidian MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Enhanced Obsidian MCP Server MCP server in PolicyLayer and add a rule for find_orphan_notes: 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 Enhanced Obsidian MCP Server. Nothing to install.
find_orphan_notes 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 find_orphan_notes 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 find_orphan_notes. 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.
find_orphan_notes is provided by the Enhanced Obsidian MCP Server MCP server (jianruidutong/obsidian-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Enhanced 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.
25 Enhanced Obsidian MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.