Critical-risk tools in KnowledgeGraph MCP Server
3 of the 11 tools in KnowledgeGraph MCP Server are classified as critical risk. This page profiles those tools specifically, with recommended policy actions and the attack patterns that target them.
Every operation listed below is an action PolicyLayer recommends controlling at the transport layer. Open any tool to see the full profile, risk score, and YAML policy snippet.
Tools at critical risk
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delete_entitiesDestructivePermanently DELETE entities and all their RELATIONSHIPS. This action is irreversible and cascades to remove all connections. Verify entity existence with search_knowledge first....
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delete_observationsDestructiveDELETE specific OBSERVATIONS from entities while preserving the entity, its relationships, and tags. Use for correcting errors or removing outdated facts without deleting the en...
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delete_relationsDestructiveDELETE specific RELATIONSHIPS between entities while preserving both entities. Use for updating connection status when relationships change (job changes, project completion, etc.).
Attacks that target this class
Critical-risk tools in any server share these documented attack patterns. Each links to the full case and the defensive policy.