Not really, there's some advantages if the viber is experienced in C.
1. When the LLM needs to figure out what functions exist, it reads only headers, not the actual implementation. IME the agent uses a fraction of tokens compared to vibing out a Java or C# project.
2. There's only a handful of common footguns in C (signed overflow, use-after-free, dereferencing NULL, etc) all of which are localised, compared to C++ which has all those C footguns plus non-localised footguns that can't be easily detected without knowing the entire program at once.
I'm using coding agents to accelerate implementation, not to replace understanding or review. The architecture, technical decisions, testing, and final responsibility are still mine, so I don't think "vibecoded" is an accurate description here.
Odd choice for a vibecoded project.