Lesson 1: Why more context can make answers worse
24 min read·13 Oct 2026
Module 7 · Lesson 1 · About 55 minutes · Needs: Module 1 Lesson 1 (TinyLM); Module 2 Lessons 2 and 3 (the context window, trimming and compaction); Module 5 Lesson 1 (the refund rule); the guard ask from course-guide/02The situation
It is Monday 13 July 2026, week 7, and you run the new drafting step over the dev tickets. Lena stops at one. Yuki Sato's T-1004 asks for her money back on an annual Team plan bought 20 days ago. The refund rule says no_refund; the draft promised a refund "pro rata for the remaining months".
The right article was in the request. So was an old assistant turn from a test thread that said the opposite. Maya asks: "Why did it believe the wrong part, and how do we find the wrong part next time without guessing?" (Quillpath and its people are made up for this course.)