My communications plan
This is my (Sébastien Dubois) Communications plan. It describes where/how I share information and ideas. It's part of my business flywheel.
All topics → news
news
Claude Code Prompt Caching
Claude Code uses Anthropic's prompt cache to reuse large, stable chunks of context (system prompt, tool definitions, CLAUDE.md, prior turns) across requests instead of resending and re-billing them every turn. Cache reads are cheaper than uncached tokens; cache writes are more expensive than normal
2026-04-14 Interesting Links
Here are a few links I found interesting today.