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by numlocked 95 days ago
As per its own FAQ this plugin is out of date and doesn’t actually do anything incremental re:caching:

> "Hasn't Anthropic's new auto-caching feature solved this?"

> Largely, yes — Anthropic's automatic caching (passing "cache_control": {"type": "ephemeral"} at the top level) handles breakpoint placement automatically now. This plugin predates that feature and originally filled that gap.

2 comments

I don't understand and I'm curious, why a dead on arrival open source tool needs a separate domain?

  Domain Name: prompt-caching.ai
  Updated Date: 2026-03-12T20:31:44Z
  Creation Date: 2026-03-12T20:27:35Z
  Registry Expiry Date: 2028-03-12T20:27:35Z
It's more likely the other way around, the .ai domain with a fairly generic and maybe future-proof name needed a quick vibecoded project to not be empty when it launches.
Is it perhaps because this is for claude code but there's other tools that use anthropics api like custom agents? (some i prefer to use than claude code - e.g sketch.dev what is now called shelley at exe.dev) perhaps?
No, because this doesn’t actually “fix” any existing code. It’s only useful for helping an LLM to modify your code to adjust the caching parameters in the right place, but it doesn’t have the correct API for that.
I’m pretty sure whoever made this didn’t read the website they asked their LLM to generate for them.