Originally published on · Portfolio
I Built a 131-Test Eval Harness Before Writing New Features. Here's the Silent Failure It Caught.
- ▸ Why unit tests structurally can't catch this
- ▸ The four layers, and why each one exists
- ▸ The economics: why $0.03 a run actually matters
- ▸ What "before writing new features" actually means in practice
- ▸ The honest limitations
- ▸ What I'd tell a technical founder starting today
- ▸ Frequently Asked Questions
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