Back to Blog
Guide

Sarah Chen6 min
+L

Your automation team is buried in a backlog of broken bots and processes that no one runs anymore. A finance team documents a 40-step approval workflow as a standard operating procedure. The executives want it automated. The RPA lead opens the toolchain and starts hunting for selectores, xpaths, and object IDs. The project drags on. When the UI changes three pixels, the bot stalls. The team spends more time fixing the bot than it saved. That is the classic RPA maintenance treadmill.

Why RPA breaks here

Legacy RPA tools rely on brittle selectors. When a developer binds a bot to a specific UI element, the bot works until the element changes. Apps update, themes shift, and small UI tweaks break the automation. Industry research suggests teams can spend 30, 70 percent of their automation effort maintaining bots that are fragile in exactly this way. A 40-step process is a perfect storm. Every click, every text field, and every dropdown is a selector. One update in the UI can require a new object map and a full rebuild. The cost is not just engineering time. It is delayed value, broken SLAs, and a growing list of processes that sit in the too-hard basket.

What changes with computer use agents

  • Agents see the screen like a human and act with a mouse, click, and type.
  • They do not need brittle selectors or object maps. They work on any visible UI.
  • When the UI changes, the agent notices and adjusts automatically.
  • They recover from exceptions and unexpected states instead of halting.
  • They can follow a standard operating procedure written in plain English.
  • They run on desktops, browsers, terminals, legacy applications, and Citrix environments.

Computer use agents turn your SOP into a prompt and run the process on any screen, no matter how the UI evolves.

How to move without the risk

You do not need to rip out your RPA platform overnight. Treat computer use agents as a complementary layer for the processes that RPA cannot handle. Start with one high-pain process that is SOP-driven and has a changing UI. Map the steps in plain English. Run a pilot with Coasty agents in a cloud VM or desktop environment. Measure how often the agent needs human intervention and how long it takes to complete the workflow compared with the old bot or the manual process. If the agent succeeds, expand it to similar processes. Over time, you create a portfolio of automation that covers both back-end volume work that RPA handles well and the long tail of human-like work that agents excel at. This phased approach lets you build confidence, measure real ROI, and avoid a one-size-fits-all failure.

The durable path forward

The smartest automation strategy today is not to choose between RPA and agents. It is to use both where they each win. RPA remains strong for high-volume, stable, backend tasks. Computer use agents are the durable answer for SOP-driven work, changing UIs, exception-heavy processes, and environments where traditional RPA struggles. When a process is documented as a set of steps, a computer use agent can follow it directly. No flowcharts, no selectors, no constant rebuilding.

Ready to see how a computer use agent can automate your 40-step SOP without selectors? Book a demo with the Coasty team to see it run on a real desktop. https://cal.com/coasty/15min

© 2026 Coasty

Backed byYCombinator