clear_graph
Clear all data from the graph memory and rebuild indices.
This record as markdown: /tools/aegntic-aegntic-mcp/clear-graph.md
What clear_graph does on Obsidian Elite RAG MCP Server
AI agents call clear_graph to permanently remove resources in Obsidian Elite RAG MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why clear_graph is rated Critical
This tool performs an irreversible operation that deletes all data from the graph memory. While it rebuilds indices, the underlying knowledge graph data is permanently removed and cannot be recovered without external backups. This is a destructive action with significant blast radius in a knowledge management system—an AI agent invoking this without intent could erase an entire user's semantic knowledge base.
From the tool's definition Tool name 'clear_graph' combined with description 'Clear all data from the graph memory and rebuild indices' indicates irreversible deletion of graph data structures that support the RAG system's knowledge base.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs clear_graph safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Obsidian Elite RAG MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For clear_graph, this is the rule to start with:
clear_graph is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Obsidian Elite RAG MCP Server, apply this rule, and every clear_graph call is checked against it from then on.
Questions about clear_graph
Clear all data from the graph memory and rebuild indices. It is categorised as a Destructive tool in the Obsidian Elite RAG MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Obsidian Elite RAG MCP Server MCP server in PolicyLayer and add a rule for clear_graph: 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 Elite RAG MCP Server. Nothing to install.
clear_graph is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the clear_graph 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 clear_graph. 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.
clear_graph is provided by the Obsidian Elite RAG MCP Server MCP server (aegntic/aegntic-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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