Marcus built a fully automated content machine: RSS feed → ChatGPT → LinkedIn.

Perfect for 3 days. Then—red "Scenario Failed" error. 48 hours of crashes.

The Problem: Integration Black Box.

When three tools chain together, a dropped baton can crash everything. But you can't see who dropped it.

The Fix: Read the HTTP Code

Don't panic. Click the raw log. Find the three-digit HTTP Status Code—it tells you precisely what died.

✅ Error 504 - AI too slow

• Fix: Ask for 200 words (not 500). Use a faster model.

✅ Error 429 - Driving too fast

• Fix: Add delay. Post 1 item, wait 5 minutes, post next.

✅ Error 400 - Empty data

• Fix: Add filter. "Only continue if data exists."

✅ Error 401 - Expired API key

• Fix: Re-authenticate. Generate fresh token.

Unit Test Strategy:

1. Test ChatGPT directly—works?
2. Test LinkedIn manually—works?
3. Check the error code. The problem is the handshake.

90% of automation fails aren't AI problems. They're integration problems.

Rule: Automation is "Set it and Manage it."

Read the number. Apply the fix. Done.

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