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01
Contracts All the Way Down
Strict JSON schemas as hand-off contracts, cross-stage consistency checks, inspectable per-stage artifacts, and the math pinned in code the agent only calls.
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02
Say It Once
Give every fact one home: code, prompt, or knowledge file, so nothing drifts out of sync, bloats the context, or costs tokens twice.
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03
Never Let the Model Type a Number
Render every figure and table in code; let the model fill only the prose. Never trust it to transcribe a value.
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04
One Axis at a Time
Break the difficulty of a case into complexity vectors and grow the test set one dimension at a time, behind a regression gate.
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05
Teaching an Agent to Hold Still
Measure stability before accuracy: a drift eval that turns "it's flaky" into a located, fixable cause. The capstone that rests on the four before it.
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New here? Read in order: the machine gets built in 01–03, tested in 04, and measured in 05. In a hurry? 05 is the one that ties it together.