Cluster documents using HDBSCAN (hierarchical density-based clustering). Improved version of DBSCAN with better handling of varying density clusters.
AI agents call cluster_documents_hdbscan to retrieve information from TDZ C64 Knowledge without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
HDBSCAN clustering is a read-only statistical analysis operation. It examines document data, computes cluster membership, and returns results without creating, modifying, or deleting any documents or triggering external systems. The operation is deterministic and reversible (re-running produces the same output).
From the tool's definition Tool performs 'cluster documents using HDBSCAN' — a clustering algorithm that analyzes and groups documents by similarity. No modification, deletion, or execution of external code is performed. The operation is analytical/computational on already-indexed data.
Attacks that exploit this kind of access
Cluster documents using HDBSCAN (hierarchical density-based clustering). Improved version of DBSCAN with better handling of varying density clusters. It is categorised as a Read tool in the TDZ C64 Knowledge MCP Server, which means it retrieves data without modifying state.
Register the TDZ C64 Knowledge MCP server in PolicyLayer and add a rule for cluster_documents_hdbscan: 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 TDZ C64 Knowledge. Nothing to install.
cluster_documents_hdbscan 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 cluster_documents_hdbscan 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 cluster_documents_hdbscan. 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.
cluster_documents_hdbscan is provided by the TDZ C64 Knowledge MCP server (michaeltroelsen/tdz-c64-knowledge). 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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