AI agents call query_topic_summary to retrieve information from Ogham without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name suggests querying and summarizing topics from the shared memory store. Given the server's primary function as a retrieval and search system (pgvector + tsvector hybrid search), this tool almost certainly performs a read-only query. The empty description lowers confidence slightly, but context from sibling tools and server purpose strongly supports the Read category.
From the tool's definition Tool name 'query_topic_summary' indicates a retrieval operation. The server is described as providing 'Persistent shared memory' with 'Hybrid search' and 'knowledge graph' capabilities.
Attacks that exploit this kind of access
query_topic_summary. It is categorised as a Read tool in the Ogham MCP Server, which means it retrieves data without modifying state.
Register the Ogham MCP server in PolicyLayer and add a rule for query_topic_summary: 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 Ogham. Nothing to install.
query_topic_summary 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 query_topic_summary 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 query_topic_summary. 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.
query_topic_summary is provided by the Ogham MCP server (ogham-mcp/ogham-mcp). 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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