Meta has released a beta version of Muse Code, a coding assistant that runs in a terminal (the text-only window developers use to talk directly to a computer). It is powered by a new Meta model called Muse Spark 1.2, and it is Meta's answer to Anthropic's Claude Code and OpenAI's Codex.
For your website, this changes nothing today. Muse Code is not an app you log into and it is not a plugin for WordPress or Shopify. It runs on macOS and Linux machines, it is aimed at large code bases, and Meta's own showcase example was a task that ran over a thousand tool calls across as long as 24 hours. That is the work of a software engineering team, not a five-page site for a landscaping company.
So why does it get column inches? Because pricing is the real story. Meta's AI chief called it one of the most affordable coding agents available, and there is a heavily discounted "contributor" tier where your activity gets used to improve Meta's products. That tradeoff matters to anyone whose code is confidential. Meta offers a standard tier for exactly that reason, and Business Insider notes that companies working with proprietary code may prefer it.
Where this could touch you indirectly: if the people who build and maintain your website start using cheaper agents, the economics of small development jobs shift over time. Some of that may show up as faster turnaround. Some of it may show up as code written quickly with less human review. The tool includes approval steps (a /plan command that turns a task into a plan you sign off on, and a /grill command that stress-tests it), which suggests even Meta expects a human to stay in the loop.
What to do: nothing. But next time you commission work, it is fair to ask your developer two questions. Are you using an AI coding agent on this project, and if so, is my code being used to train anyone's model? Both are reasonable to ask and easy to answer.
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