Validating real-action agents is unsolved: one test run cost $30 and an X flag

Common_Dream9420 · reddit · 2026-09-17

An engineer who spent weeks talking to founders reports a recurring pain point: agents that take real actions have no clean verification story. One founder building an X-posting agent validated by hitting the real API — a single test run fired 40+ API calls, got the account flagged, burned $30, and produced no useful signal.

The post argues building is fast now but verification is still stuck at "run it in prod and hope," and asks other builders what their verification loops actually look like.

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