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AI-COST-OPTIMIZATION5 MIN READ

Restructure a Long Prompt for Cache and Batch

Restructure a long, repeated prompt so it benefits from caching and batch economics.

The contract-analysis workflow resends a long policy pack on every clause review, but the app places volatile client notes and timestamps inside the middle of the reusable instructions. Freeze the stable prefix -> isolate dynamic suffix -> route urgent exceptions -> batch delayed passes Teams often attack long prompts by deleting policy detail. That can hurt consistency without fixing the core issue: the stable material was never isolated well enough to benefit from cached-input pricing. Freeze the stable instruction and policy pack Keep reusable compliance rules, schema, and tone instructions in a fixed prefix. The cache discount depends on repeatable…

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