// MCP TOOL REFERENCE

OBSIDIAN MEMORY MCP TOOLS

9 tools from the Obsidian Memory MCP MCP Server, categorised by risk level.

// ALL 9 OBSIDIAN MEMORY MCP TOOLS

READ 2 tools

Read read_graph Read the entire knowledge graph Read search_nodes Search for nodes in the knowledge graph based on a query

WRITE 4 tools

Write add_observations Add new observations to existing entities in the knowledge graph Write create_entities Create multiple new entities in the knowledge graph Write create_relations Create multiple new relations between entities in the knowledge graph. Relations should be in active voice Write open_nodes Open specific nodes in the knowledge graph by their names

DESTRUCTIVE 3 tools

Destructive delete_entities Delete multiple entities and their associated relations from the knowledge graph Destructive delete_observations Delete specific observations from entities in the knowledge graph Destructive delete_relations Delete multiple relations from the knowledge graph

// FAQ

How many tools does the Obsidian Memory MCP MCP server have? +

The Obsidian Memory MCP MCP server exposes 9 tools across 3 categories: Read, Write, Destructive.

How do I enforce policies on Obsidian Memory MCP tools? +

Route the Obsidian Memory MCP server through the PolicyLayer gateway. Define allow, deny, or approval rules per tool in the dashboard; they are enforced on every call before it reaches the server.

What risk categories do Obsidian Memory MCP tools fall into? +

Obsidian Memory MCP tools are categorised as Read (2), Write (4), Destructive (3). Each category has a recommended default policy.

Enforce policy on every Obsidian Memory MCP tool call.

Deterministic rules across all 9 Obsidian Memory MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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