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5/12/2026
My AI agents YouTube Shorts pipeline died at 3am - Python 3.14 + moviepy v2 was the killer

My AI agents YouTube Shorts pipeline died at 3am - Python 3.14 + moviepy v2 was the killer

Short summary

Autonomous YouTube Shorts agent failed silently when Python 3.14 and moviepy version mismatches collided. Author diagnosed the issue and implemented five fixes: venv pinning, defensive import fallbacks, output attestation checks, dependency checksumming, and explicit artifact validation. Key lesson: silent failures in background systems need proactive monitoring.

  • •Python/library version mismatch caused silent pipeline failure for a full day
  • •Five fixes implemented: venv pinning, defensive imports, output attestation, dependency tracking, artifact validation
  • •Critical insight: long-running systems need artifact attestation logging, not just heartbeats

Generated with AI, which can make mistakes.

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