https://korvaed.com/blog Plain-language engineering for founders and technical leaders: AI in production, AI coding agents, cloud cost, infrastructure and security. Sourced, specific and short. en-CA https://korvaed.com/blog/prompt-caching-agent-loops-cost https://korvaed.com/blog/prompt-caching-agent-loops-cost Fri, 30 Oct 2026 00:00:00 GMT How prompt caching and context editing lower the input cost of long agent loops, and what quietly breaks the cache.