Widgets
Each of these makes one mechanism legible by letting you drive it. They are the interactive halves of essays: the claim is in the prose, the reason to believe it is in the parameters you can move.
Looking for something that answers a decision you brought with you rather than an argument? The tools are over there.
Yield Collapse
The share of jobs that ship clean is the product of every per-gate accept rate, so a pipeline of good-enough stations ships almost nothing.
drives: station count, per-gate accept rate
DAG Topology
Pipeline shape sets yield and rework cost. Partial rework strictly dominates full rework, and the gap widens as parts or failures grow.
drives: topology, accept rate, parts, cross-part correlation, sticky failure
Brier Reliability Diagram
Held-out accuracy hides calibration error completely. A station can be accurate and still lie about its own confidence, and the lie compounds downstream.
drives: per-bin observed frequency, dragged directly on the chart
Substrate Codebook
Whether a reusable library compounds is set by the entropy rate of the work it serves. Zipfian heads compound; uniform tails never do.
drives: source distribution, library accretion over time
Dollarized Confusion Matrix
The optimal decision threshold falls out of the four cell values, not out of model quality. Symmetric costs are the rare case.
drives: cost of each error, value of each correct call