List installed applications with optional filters
AI agents call list_installed_apps to retrieve information from Windows Diagnostics MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries system state (installed applications) and returns information. It performs no modifications, code execution, or side effects. The optional filters are read parameters only. This is a straightforward Read operation with minimal security risk, as installed application lists are generally low-sensitivity metadata.
From the tool's definition Tool name 'list_installed_apps' and description 'List installed applications with optional filters' indicate data retrieval without modification. No destructive, write, or execute operations are described.
Attacks that exploit this kind of access
List installed applications with optional filters. It is categorised as a Read tool in the Windows Diagnostics MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Windows Diagnostics MCP Server MCP server in PolicyLayer and add a rule for list_installed_apps: 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 Windows Diagnostics MCP Server. Nothing to install.
list_installed_apps 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 list_installed_apps 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 list_installed_apps. 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.
list_installed_apps is provided by the Windows Diagnostics MCP Server MCP server (jackalterman/windows-diagnostic-mcp-server). 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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