AI agents call search_by_date_range to retrieve information from Robust Long-Term Memory 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 queries memory data filtered by date range with no side effects. Despite the empty description, the naming convention and context of sibling tools strongly suggest this performs a read-only search operation. The capability to search memories poses minimal risk even if misused—an AI agent could retrieve data it shouldn't access, but cannot modify or delete.
From the tool's definition Tool name 'search_by_date_range' indicates a search operation that queries stored memories within a specified timeframe.
Documented attack patterns abuse exactly the kind of access search_by_date_range gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Robust Long-Term Memory MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for search_by_date_range:
{
"version": "1",
"default": "deny",
"tools": {
"search_by_date_range": {}
}
}search_by_date_range is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
search_by_date_range. It is categorised as a Read tool in the Robust Long-Term Memory MCP MCP Server, which means it retrieves data without modifying state.
Register the Robust Long-Term Memory MCP server in PolicyLayer and add a rule for search_by_date_range: 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 Robust Long-Term Memory MCP. Nothing to install.
search_by_date_range 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 search_by_date_range 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 search_by_date_range. 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.
search_by_date_range is provided by the Robust Long-Term Memory MCP server (rotoslider/long-term-memory-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 11 Robust Long-Term Memory MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
11 Robust Long-Term Memory MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.