We work on voice AI infrastructure at Telnyx. One issue that kept coming up was prompts getting harder to work with over time.
They usually start small. Then edge cases get added. Then tone rules. Then formatting. After a while the prompt still “works,” but nobody wants to edit it because it’s unclear what depends on what.
We added a prompt rewrite feature directly into our voice AI assistant builder.
It takes an existing prompt and rewrites it to be clearer while keeping the same intent and constraints.
You can see the suggested changes inline and decide whether to apply them.
We built this because we kept seeing long prompts cause subtle behavior changes and regressions in production.