[awoimbee]

You didn't quote the interesting part:

> our implementation is it only prunes calls from > 3 user messages ago, if context is > 40K, and only if there's at least 20K tokens to be removed

Seems reasonable to me and explains why I can have long sessions (way longer than with zed agents) while still hitting cache. Opencode is just missing per-provider TTL.

[arthurcolle]

I found that keeping current context utilization at 18% of total context length was best for minimizing spend, across all models with 400k context length or more