Detect document communities using Louvain algorithm. Returns clusters of related documents with modularity score.
AI agents call knowledge_communities to retrieve information from Ralph Hero without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads and analyzes existing document data to identify communities/clusters, then returns results. There are no side effects, modifications, deletions, or external operations triggered. The operation is read-only analysis, making it a Read category tool with low severity.
From the tool's definition Tool performs document clustering analysis using Louvain algorithm and returns clusters with modularity scores. Uses verbs 'Detect' and 'Returns' indicating data retrieval and analysis without modification.
Attacks that exploit this kind of access
Detect document communities using Louvain algorithm. Returns clusters of related documents with modularity score. It is categorised as a Read tool in the Ralph Hero MCP Server, which means it retrieves data without modifying state.
Register the Ralph Hero MCP server in PolicyLayer and add a rule for knowledge_communities: 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 Ralph Hero. Nothing to install.
knowledge_communities 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 knowledge_communities 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 knowledge_communities. 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.
knowledge_communities is provided by the Ralph Hero MCP server (ralph-hero-mcp-server). 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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