Steve Yegge details Opus 4.7's 'just two more things' tic in AI development

Bulletin

Simon Willison, writing on his blog on 4 August 2026, quoted developer Steve Yegge’s account of a specific failure pattern observed in Anthropic’s Opus 4.7 model. Yegge, describing his project Gas Town, a tool he built intending it to be reusable but which he reports he ended up using only to build itself, said the tool “fell apart at the seams” once he moved to Opus 4.7. He noted that through version 4.6 the setup had been working well.

According to Yegge’s account, Opus 4.7 introduced what he termed a “just two more things” tic. He described this as a pattern in which the model could not settle into being ready to perform the actual work at hand, and instead persistently wanted to keep adjusting Gas Town itself rather than proceeding.

Willison’s post relays Yegge’s essay “The Shape of Things to Come,” posted at yegge.ai, and cites the Gas Town project page directly. The excerpt does not elaborate further on how the behavior manifested beyond the described looping tendency, nor does it specify whether the issue was resolved.

The account is presented as a firsthand developer report rather than a benchmark or formal study, offering a concrete, if anecdotal, description of a model repeatedly deferring completion of a task in favor of continued self-directed tinkering.