Focus on a specific node — expand its subgraph with all relations and child nodes.
AI agents call desktop_focus to retrieve information from MCP Roo Memory without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays graph structure information (nodes and their relations) without creating, modifying, or deleting any data. It is a query/navigation operation on the knowledge graph with no side effects. No data is written, destroyed, or executed; it merely fetches and presents existing graph relationships for viewing purposes.
From the tool's definition Tool name 'desktop_focus' and description 'Focus on a specific node — expand its subgraph with all relations and child nodes' indicate retrieval and querying operations only. The verb 'expand' refers to displaying/retrieving subgraph data, not modifying it.
Attacks that exploit this kind of access
Focus on a specific node — expand its subgraph with all relations and child nodes. It is categorised as a Read tool in the MCP Roo Memory MCP Server, which means it retrieves data without modifying state.
Register the MCP Roo Memory MCP server in PolicyLayer and add a rule for desktop_focus: 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 MCP Roo Memory. Nothing to install.
desktop_focus 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 desktop_focus 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 desktop_focus. 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.
desktop_focus is provided by the MCP Roo Memory MCP server (mcasdfgf/mcp-roo-memory). 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 →