I believe it's important to know what prompt caching is and how it helps save costs.
On this page, I would pay attention to what resets the cache, how agents affect it, how to check your cache usage, and TTL.
One advice I didn't follow before:
Compaction works in your favor when the context you discard is content you no longer need. To choose when its overhead happens, run /compact at a natural break in your work, such as between tasks, instead of waiting for auto-compaction to trigger mid-task. If you’ve gone down a path you want to abandon entirely, /rewind to an earlier turn instead. Rewinding truncates back to a prefix that is already cached, rather than building a new one as compaction does.
https://code.claude.com/docs/en/prompt-caching
#ai
