Get comprehensive statistics about a vault.
AI agents call obsidian_get_vault_stats to retrieve information from Mcp Apple Obsidian without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries statistical information about an Obsidian vault (e.g., note counts, file sizes, structure metrics). It has no side effects on vault data, does not execute code, does not create or modify notes, and does not delete anything. It is a pure Read operation with minimal security risk—the worst case is information disclosure about vault structure.
From the tool's definition Tool name 'obsidian_get_vault_stats' and description 'Get comprehensive statistics about a vault' indicate a retrieval operation that queries vault metadata/statistics without modification.
Attacks that exploit this kind of access
Get comprehensive statistics about a vault. It is categorised as a Read tool in the Mcp Apple Obsidian MCP Server, which means it retrieves data without modifying state.
Register the Mcp Apple Obsidian MCP server in PolicyLayer and add a rule for obsidian_get_vault_stats: 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 Mcp Apple Obsidian. Nothing to install.
obsidian_get_vault_stats 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_get_vault_stats 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_get_vault_stats. 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_get_vault_stats is provided by the Mcp Apple Obsidian MCP server (rex/mcp-apple-obsidian). 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.
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