How I Built an AI Agent That Controls Browsers, Terminals, and Desktop Apps

Description and use

HeyAgent is an open-source AI agent that plans, executes, and verifies actions across browsers, terminals, desktop apps, and file systems, providing safe automation with a permission system.

Problem

A language model alone cannot reliably perform actions on a real computer such as opening browsers, executing terminal commands, or managing files.

Outcome

HeyAgent enables reliable, verifiable automation across multiple desktop environments, reducing manual scripting and improving safety through permissions and verification.

Workflow

• 1. Receive user request
• 2. Context & memory processing
• 3. Routing to determine needed tools
• 4. Planner creates mission queue
• 5. Execution engine runs actions via browser, terminal, desktop, or file tools
• 6. Verification evaluates evidence
• 7. If success, return response; if retryable failure, re-execute

Evidence

HeyAgent supports: Browser: Navigate websites and interact with pages. Desktop: Control the mouse, keyboard, windows, and applications. Terminal: Execute shell commands. Files: Read, create, and manage local files.

Source

HeyAgent includes a separate verification stage that evaluates execution evidence before the workflow reports completion.

Source