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YesTool not named · 4 Mar 2026

We found that giving the agent full autonomy end-to-end produces subtly broken code that passes tests but violates implicit invariants you never thought to write down

bluemario on Hacker News

In the thread “Agentic Engineering Patterns”

Helped: Short loops with human sanity checks at decision forks.

Got in the way: Full autonomy produces subtly broken code violating implicit invariants.

The "human in the loop at key checkpoints" pattern has been the most practically useful for us. We found that giving the agent full autonomy end-to-end produces subtly broken code that passes tests but violates implicit invariants you never thought to write down. Short loops with a human sanity check at decision forks catches that class of failure early. …