memory.recall · Sylex Memory MCP: Risk & Policy

WHAT IT DOES

What memory.recall does on Sylex Memory

AI agents call memory.recall to retrieve information from Sylex Memory without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why memory.recall needs a policy

This tool performs a read-only operation that fetches data from encrypted memory storage without side effects. The verb 'recall' and context of retrieving memories (either by ID or presumably by search/filter) is purely informational.

From the tool's definition Tool name 'memory.recall' and description 'Retrieve specific memories' indicate a retrieval/query operation with no modification or deletion of data.

Attacks that exploit this kind of access

Questions about memory.recall

What does the memory.recall tool do? +

Retrieve specific memories. Either by ID (exact recall) or by. It is categorised as a Read tool in the Sylex Memory MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on memory.recall? +

Register the Sylex Memory MCP server in PolicyLayer and add a rule for memory.recall: 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 Sylex Memory. Nothing to install.

What risk level is memory.recall? +

memory.recall is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit memory.recall? +

Yes. Add a rate_limit block to the memory.recall 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.

How do I block memory.recall completely? +

Set action: deny in the PolicyLayer policy for memory.recall. 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.

What MCP server provides memory.recall? +

memory.recall is provided by the Sylex Memory MCP server (mastadoonprime/sylex-memory). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.