Get all entities in the same community as the specified entity. Communities are groups of closely related entities detected through graph analysis. Returns community ID, member count, and list of community members with their types.
AI agents call get_entity_community 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.
This is a retrieval operation that queries the graph structure to return existing community membership data. There are no side effects, no data modifications, no code execution, and no external operations triggered. The blast radius of misuse is minimal—an agent could only retrieve potentially sensitive entity relationships, which is a Read-level risk for a documentation knowledge base.
From the tool's definition The tool retrieves entities and community information from an already-built knowledge graph through a read-only query operation: 'Get all entities in the same community as the specified entity.
Attacks that exploit this kind of access
Get all entities in the same community as the specified entity. Communities are groups of closely related entities detected through graph analysis. Returns community ID, member count, and list of community members with their types. 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 get_entity_community: 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.
get_entity_community 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 get_entity_community 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 get_entity_community. 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.
get_entity_community 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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