Open-source prompt-caching plugin cuts Claude Code AI token costs by 90% via automatic caching of stable content—two-command install, zero config, MIT licensed.

prompt-caching — Cut Claude Code Token Costs by 90% Automatically

MCP Plugin · Open Source · MIT Built with Claude, for Claude. Stop payingfull pricetwice. Automatic prompt caching for Claude Code. Detects stable content — system prompts, tool definitions, file reads — and marks them so you pay 90% less on every repeated turn. Claude Code # Two commands. That's it. /plugin marketplace add https://github.com/flightlesstux/prompt-caching /plugin install prompt-caching@ercan-ermis # No npm. No config file. No restart. # Savings start on the next turn. 90% average...