Return counts of documents by memory_tier plus chunk percentiles and last-reflection timestamp. Used by the dream-loop to confirm ingest/reflection completion.
AI agents call knowledge_memory_stats 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 retrieves and reports statistics about documents and memory state. It has no side effects—it neither modifies data, deletes data, executes code, nor triggers external operations. It is purely informational, used by the dream-loop to monitor ingest/reflection completion status. This is a classic Read operation.
From the tool's definition Tool 'Return counts of documents by memory_tier plus chunk percentiles and last-reflection timestamp' performs data retrieval only.
Attacks that exploit this kind of access
Return counts of documents by memory_tier plus chunk percentiles and last-reflection timestamp. Used by the dream-loop to confirm ingest/reflection completion. 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_memory_stats: 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_memory_stats 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_memory_stats 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_memory_stats. 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_memory_stats 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.
Teams ship this data inside their own products. See what a licence covers →