Agents Need Version Control and Testing
T3SLX69 · reddit · 2026-07-13
After spending time on agent development, the author argues that the real challenge is no longer "generating the first prompt faster," but ensuring the agent remains stable after continuous modifications.
They explicitly outline the capabilities they now value most:
- Automatically running evals after every change, rather than just manual one-off testing.
- Defining clear contracts for structured outputs.
- Supporting version diffs and rollbacks.
- Implementing failure handling for every tool call and retaining human-readable logs.
The author mentions reviewing enterpro's agent builder because it clearly exposes these "post-development maintenance" issues. The conclusion: prompt generation is just the starting point; production-grade reliability is what's worth paying for.
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