omarchy_launch_or_focus_webapp
Launch or focus on a given web app identified by the window-pattern. [group:launch] Args: <window-pattern> <url-and-flags...>
This record as markdown: /tools/omarchy-mcp/omarchy-launch-or-focus-webapp.md
What omarchy_launch_or_focus_webapp does on Omarchy-MCP
AI agents invoke omarchy_launch_or_focus_webapp to trigger actions in Omarchy-MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why omarchy_launch_or_focus_webapp is rated High
Launches arbitrary web applications with user-supplied URLs and flags, enabling malicious site access or browser exploitation.
From the tool's definition launch...webapp, window-pattern, url-and-flags triggers external operations
Attacks that exploit this kind of access
The rule that runs omarchy_launch_or_focus_webapp safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Omarchy-MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For omarchy_launch_or_focus_webapp, this is the rule to start with:
omarchy_launch_or_focus_webapp stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Omarchy-MCP, apply this rule, and every omarchy_launch_or_focus_webapp call is checked against it from then on.
Questions about omarchy_launch_or_focus_webapp
Launch or focus on a given web app identified by the window-pattern. [group:launch] Args: <window-pattern> <url-and-flags...>. It is categorised as a Execute tool in the Omarchy-MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Omarchy MCP server in PolicyLayer and add a rule for omarchy_launch_or_focus_webapp: 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 Omarchy-MCP. Nothing to install.
omarchy_launch_or_focus_webapp is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the omarchy_launch_or_focus_webapp 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 omarchy_launch_or_focus_webapp. 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.
omarchy_launch_or_focus_webapp is provided by the Omarchy MCP server (hlsitechio/Omarchy-MCP). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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