Pixel Myth
← Field notes
Agents

Agents that drive the computer: where the limit sits today

Agents field note

Useful for old systems with no API. It's slow, it's fragile, and it still unblocked a project that had been stuck for three years.

We have tools now that let an AI system drive the computer directly and autonomously. Click buttons, type text, read screen contents. This capability is useful for integrating with dead legacy systems that have no published API.

The client had a legacy terminal application from the nineteen-nineties with no integration route available and a locked vendor maintenance contract. The vendor was not responding to requests for new features or API exposure.

Automating the graphical user interface was the only realistic option remaining available. The system worked but required strict human supervision and enforced a hard cap on operations per hour to manage risk.

We do not recommend computer automation when an API exists or can be created. It is slow, fragile and brittle to screen layout changes. Someone will redesign the interface unexpectedly.

When there is no API available though, computer automation is the difference between completing the project and leaving it incomplete. Three years stuck became three months.

The pattern: last resort when no other integration method exists. Use when legacy systems have no other realistic alternative whatsoever.