Chapter D · 4 of 4~10 min

Eval gates in code

Block deploys when **golden tasks fail** — eval is code, not a spreadsheet you forget.

Reviewed July 2026 · interactive lab

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Reference

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1Try it yourself

Playground

Eval gate before ship

No agent or RAG change reaches prod without a golden task set.

10 golden tasks defined
Eval runs in CI on prompt change
Pass threshold documented (e.g. 8/10)
Deploy blocked on eval failure

2Read & reflect

Recap

#What you just did

You checked four ship gates: golden set, CI hook, pass threshold, deploy block.

Read

#Minimal gate

JSON file of { input, must_include, must_not_include } tasks
Script scores model output on staging
Exit code 1 if score < threshold
CI runs script on PR touching prompts/tools

3Spark check

Continue learning · glossary & guides

How-to: ship agent with eval gate · Glossary: eval set