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AI & programming · Free
Practical lessons for builders working with AI, code, and automation. Build a small working result, test it, and understand where it can fail.
Try a short example → Fix the empty-list case. No account or API key needed.
Choose what you want to build
Explore the learning sections below. Empty sections are clearly marked; new lessons will appear as they are published.
Build AI-assisted workflows with validated outputs, service integrations, and human approval. Learn how to test each step and understand its limits.
2 published lessons 02Build focused scripts and practical developer tools for files, data, and repeatable tasks.
No lessons yet 03Learn to build, test, and deploy useful web applications and software services.
No lessons yet 04Develop and maintain extensions for XenForo and WordPress.
No lessons yet 05Build and test applications for iOS and Android.
No lessons yet 06Build practical applications and utilities for macOS and Windows.
No lessons yet 07Create browser extensions with clear permissions, privacy, and testing.
No lessons yetAvailable to read now
Build and test a JavaScript gate that rejects malformed AI task drafts. Includes a browser exercise, workflow diagram, and 13-case downloadable test suite.
Recorded code tests · 2026-10-31. See the lesson for scope and review status.
Open lesson →Put a person between the model and any action that matters, and record every decision.
Draft: no completed test record yet.
Read the draft →How to read a Learn lesson
Read the goal, prerequisites, and working example before following the steps.
Look for the runtime, test date, cases, and failures. A draft is labelled as a draft.
Passing code tests does not prove factual accuracy or authorize an action. Review status and limits stay visible.
A small demonstration
Without a check, every run looks fine. Turn the check on and see what the output was hiding.
Sample runs, not real data.
Every run produced an answer, so every run looks fine. Nobody checked.
Start with the published examples. Check the prerequisites, test record, and limits before you build.
A little clarity, a lot less scrolling.
The main idea, without losing the details that matter.
