Glossary

Context window.

The amount of information a model can consider at once, including instructions, messages, files, and tool results.

Why it matters

If you are building with AI, this term affects how you choose tools, set expectations, and design verification. The practical question is always: what does this make possible, what can go wrong, and how will you check the result?

Good first question

Ask: where does this show up in my workflow, and what approval or test keeps it from becoming a hidden risk?