Find notes with no incoming or outgoing links.
AI agents call find_orphan_notes to retrieve information from Obsidian Modified without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only analysis of the note graph to identify orphaned notes. It has no side effects—it queries existing data and returns results. No data is created, modified, deleted, or destroyed. No external commands are executed.
From the tool's definition Tool name 'find_orphan_notes' and description 'Find notes with no incoming or outgoing links' indicate a search/query operation that retrieves information about note link structure without modifying, deleting, or executing code.
Attacks that exploit this kind of access
Find notes with no incoming or outgoing links. It is categorised as a Read tool in the Obsidian Modified MCP Server, which means it retrieves data without modifying state.
Register the Obsidian Modified 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 Obsidian Modified. 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 Obsidian Modified MCP server (@marwansaab/obsidian-modified-mcp-server). 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.
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