Playing Devil's advocate, could you not then tell the agent to use TurboStream instead of a channel and still keep code vibing? - you can also ask it to run Robocop after every edit, which works pretty well. Also try roo-code, it's more customisable and seems to work better, you can also swap out the models, Gemini 2.5 is pretty good, so is o3-mini-high and claude 3.7 - you're definitely using the wrong model. Plus writing specs is what vibe coding is best at! - you just tell it write a spec for the code it just added and more often than not it does a good job.