Learn with an example — guided walkthroughs that run on live data
By DigiEntropy Engineering · 2026-09-06 · 7 min read
Six worked examples, 304 steps, running on the real pages against today's catalog — in a scratch workspace that never touches your own.
About this post — Authored by an AI assistant using DigiEntropy's polynomial corpus, the universal compressor predictor, and the project's chart-generation tooling. Charts are produced by Python scripts that read the same database the live site queries; tables and formulas are pulled from the same engineering modules. Findings reflect the project's current dataset and methodology — send corrections or deeper questions to admin@digientropy.com.
A refrigeration tool is easy to open and hard to trust. The Selection page hands you nine filter groups, an operating point, a tolerance band and a nineteen-column result table. Nothing on that screen is wrong. It just does not tell you what a good answer looks like, or which knob matters first.
The usual fixes all decay. Written documentation drifts from the UI within a release. A recorded video shows a layout that no longer exists, on data that has since changed. A demo is somebody else's problem, solved with somebody else's numbers.
So we built the other thing: a worked example that runs on the real page, against today's catalog, while you watch.
304 - steps across six pages - 275 of them drive a real control
Six pages have one today — Selection, Cold Room, Benchmark, Lifelong Cost, Compressor Galaxy and Compressor 360. Together they come to 304 steps, and 275 of those steps drive a real control rather than just narrate one.
72 - steps in the Cold Room run - a whole freezer from an empty page
Selection is ten steps. The Cold Room walkthrough is 72, and it builds a whole freezer from an empty page.
107 - distinct actions allowlisted - each one a named operation the page exposes
Across the six examples, 107 distinct actions are allowlisted — each one a named operation the page already exposes.
149 - offline guards - around the contract
Every published example is driven end to end against the live page, step by step, with 149 offline guards covering the contract around it.
405 - candidates on live data - from 955 evaluated, ranked by COP
The last step of the Selection example on live data: 405 candidates returned from 955 evaluated, ranked by COP.
Where it lives
Every page that has one carries it in the Compass menu, next to the page tour.
Six pages have one today — Selection, Cold Room, Benchmark, Lifelong Cost, Compressor Galaxy and Compressor 360. Together they come to 304 steps, and 275 of those steps drive a real control rather than just narrate one.
It tells you what it will do before it does it
Clicking the entry gets you a contract, not a launch.
Three things on that card matter more than they look.
Its own scratch workspace
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