I Let an AI Re-Platform My CI Pipeline. Here's What Broke.

Short summary

An AI agent rewrote a CI pipeline from GitHub Actions to Argo Workflows, passing lint but hiding six latent bugs because nobody validated the pipeline end-to-end in the new runtime environment. The author spent hours chasing phantom network issues (MTU, Tailscale, CNI) when the real culprit was a missing trailing newline in an SSH key mounted from a secret. The key lesson: prove your test rig isn't broken before blaming the network, and always reproduce identically to production.

• •AI-assisted CI migration from GitHub Actions to Argo Workflows hid six latent bugs due to unvalidated runtime environment changes
• •Hours wasted chasing phantom network issues caused by a missing newline in an SSH key
• •Lesson: validate test rigs before blaming infrastructure; reproduce production conditions exactly

Generated with AI, which can make mistakes.