The Reliability Math Behind a Green n8n Workflow: Multiply, Don't Average

A workflow can complete every visible node and still produce the wrong business outcome.

One reason is structural: a multi-step system inherits upstream misses. If every step is only usually correct, the end-to-end success rate is not the average of those rates. Under a simple independent-step assumption, it is their product.

I built a to identify the fragile chain.

Then run the includes a fourteen-case starter matrix, topology questionnaire, replay and incident receipts, branch and retry contracts, semantic mapping checks, and a self-verifying reference packet. Buyer #1 pays $19; the next completed buyer pays $29.

The percentage starts the conversation. An observable outcome and reproducible receipt finish it.