Claude Architect Certification PrepGet certified in 6 months · start now
MethodologyStart now
Template L · Concept · D4 Prompt Engineering

Prompt Caching.

2 min read·1 sections·Tier B

Prompt caching reduces cost (~90%) on repeated context like long system prompts and tool definitions. Cache breakpoints, TTL, and cache_control field placement are exam patterns. Full content in SCRUM-21 follow-up.

Synthesis pendingDomain 4
Loop mascot — happy mood for Prompt Caching.
Domain D4Prompt Engineering · 20%
On this page
Summary
01 · Summary

TLDR

Prompt caching reduces cost (~90%) on repeated context like long system prompts and tool definitions. Cache breakpoints, TTL, and cache_control field placement are exam patterns. Full content in SCRUM-21 follow-up.

~90%
Cost reduction
D4
Exam domain
B
Coverage tier
repeated context
Trigger
cache_control
Field
Coverage tier B

This concept has a stub page — vault sources are catalogued but full content lands in a SCRUM-21 follow-up pass. Sources: ACP-T03 §5 prompt caching; ACP-T04 prompt-caching-optimization; ASC-A01 Course 6.