CCDV-F objective 6.1 · Domain 6 · 11% of the exam
Context Engineering
A transcript grows because the API keeps nothing between calls, and every turn is charged for all the turns before it. The three instruments are not interchangeable. Pruning clears stale tool results, summarising condenses earlier history, and both die with the session, so anything that has to survive until tomorrow belongs in a store the agent writes and reads. Clearing carries its own price, since it rewrites the prefix and the next request pays to write a cache instead of reading one.
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The rest of domain 6: Prompt and Context Engineering
This domain is 11% of a scored form, about 6 of the 53, spread across 3 objectives. Drill the whole domain or pick another objective below.
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