Context window suitcase
Anticipate failure modes
Name failures by their mechanism in context window on the contract-review assistant, not with a generic hallucination label.
1Learn the idea
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Response design
For each severe context window failure on the contract-review assistant, define stop condition, safe state, owner, and lasting prevention. Rollback only works if prior prompts, indexes, and models remain available. “Send to a human” needs queue capacity and context—not just a button name.
Run one tabletop on the contract-review assistant for context window: inject a defect, verify detection, contain, recover, and keep the blameless trace.
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Make it operational
After the tabletop, store the injected context window defect for the contract-review assistant as a regression fixture. If the same failure later reaches users silently, your detection story was aspirational. Detection without a fixture tends to rot for context window.
Also pin one numeric memory from this context window chapter: A 32k window with 8k system+tools, 12k retrieved exhibits, 6k history leaves ~6k for the draft—and less if tokenization is heavier than word count suggests. That number is not decoration; it is a template for how claims about context window on the contract-review assistant should look in design docs. Scoped specifically to context window / contract-review assistant / failure-modes.
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Common mix-ups
People confuse context window with neighboring buzzwords when debugging the contract-review assistant. Before changing prompts, ask whether the broken stage was evidence gathering, the context window judgment itself, validation, or the product action. Fixing the wrong stage creates folklore (“we tried context window and it failed”) that blocks the next team on the contract-review assistant. Scoped specifically to context window / contract-review assistant / failure-modes.
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Rehearsal (context-window/failure-modes)
Write a five-line artifact for this page: goal, inputs, check, owner, stop rule. Invent one fluent failure that the check would catch. Keep details specific to context window rather than generic AI advice.
Read
Rehearsal (context-window/failure-modes)
Write a five-line artifact for this page: goal, inputs, check, owner, stop rule. Invent one fluent failure that the check would catch. Keep details specific to context window rather than generic AI advice.
Read
Rehearsal (context-window/failure-modes)
Write a five-line artifact for this page: goal, inputs, check, owner, stop rule. Invent one fluent failure that the check would catch. Keep details specific to context window rather than generic AI advice.
Go deeper
Before you start
Why this matters
Invent an incident for the contract-review assistant involving context window. What earliest signal should fire before users complain?
Silent truncation
Detect with end of contract dropped. Respond by detect overflow; fail closed or retrieve better.
Instruction eviction
Detect with safety rules truncated first. Respond by pin system tokens; pack by priority.
History bloat
Detect with old turns consume exhibit space. Respond by summarize or drop with user-visible notice.
Tokenizer surprise
Detect with word count underestimates tokens. Respond by count with the real tokenizer.
In the wild
See how this idea shows up as a product and a company — then come back to the lesson. Skills transfer across vendors.
Related lessons
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