Everything here runs in the tab you opened it in. No account, no API key, no model call, no server. Open a page once and it keeps working on a dead connection, on a school laptop from 2017, on a USB stick you hand to the teacher next door.
These are rules engines, not AI. They show you every rule that fired and what it cost, so you can disagree with them on specifics instead of trusting them on faith.
Pick a topic, a length and a class level. Get a session plan with timings that actually add up, an opening hook that is not a definition, checks for understanding at sensible intervals, a practical activity and a closing that gives you evidence.
Describe the task in plain words. Get a rubric with real criteria and four honest levels, weighted, editable in place, exportable. Built for game work, so it can grade a prototype and a playtest log rather than pretending they are essays.
Paste an assignment and find out how easily a model could just do it. Scores exposure out of 100, shows every rule that matched, suggests the smallest change that fixes it, and writes you an AI policy line for that specific task.
Classes, assignments, rubrics and grades, held in this browser on this device. Export to a file you own, import it back on any machine. It says plainly on the page what it is and what it is not, because a gradebook that quietly loses a term is worse than no gradebook.
A space for one student to work a design problem end to end, with structure and prompts at each stage. It finishes with a one page design document you can read, and an honesty check that tells them where their own design is vague. Nothing leaves the browser.
What high school students actually get wrong about game design, what order to teach it in, how to assess a thing that is played rather than read, and how to run a playtest as a lesson that survives contact with thirty teenagers.
Every page is plain HTML, CSS and JavaScript with no dependencies. Save the page from your browser, put the folder on a USB stick, email it to a colleague, host it on your school intranet. It will still work in five years because there is nothing in it that can stop being supported. If you want to change how a tool scores something, open the file and edit the rules table near the top of the script. It is written to be read.