Tutorials · Chapter C (3/4) · ~6 min
Context window suitcase
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Models only hold so many tokens — pack the suitcase wisely.
Simulation game
Context suitcase
Pack messages into the model’s limited suitcase (100 tokens). Overflow = forgotten stuff.
20 / 100
Recap
What you just did
You packed a context window — the working memory of tokens the model can use for this answer. Overflow means something gets left behind.
Teach
How it works
Context includes: your instructions, chat history, documents you pasted, and the reply being written. It’s one shared budget.
Packing tip: keep the goal, constraints, and the few facts that matter. Cut repeated fluff.
Use it
When you'd use this
- Paste only the relevant email thread, not the whole inbox dump
- Summarize a long PDF before asking detail questions
- Start a fresh chat when the conversation gets muddy
Watch out
Watch out
Stuffing “everything just in case” often makes answers worse — the important line gets buried or dropped.
Try next
Try this next
Pick a messy note dump. Rewrite a “packed suitcase” version: goal + 3 facts + format you want.