query_similar_memories
AI agents call query_similar_memories to retrieve information from Chronos MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or searches stored memories based on similarity, which is a Read operation with no side effects. It queries existing data without creation, modification, or deletion. The empty description lowers confidence slightly, but the naming pattern and server purpose strongly indicate retrieval functionality.
From the tool's definition Tool name 'query_similar_memories' indicates a search/retrieval operation. Server context describes 'query' operations for reconstructing past information.
Attacks that exploit this kind of access
query_similar_memories. It is categorised as a Read tool in the Chronos MCP MCP Server, which means it retrieves data without modifying state.
Register the Chronos MCP server in PolicyLayer and add a rule for query_similar_memories: 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 Chronos MCP. Nothing to install.
query_similar_memories 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_similar_memories 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_similar_memories. 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_similar_memories is provided by the Chronos MCP server (synaptikal/chronosmcp). 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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