How I Built Persistent Memory for Claude Code

Every Claude Code session starts from zero. Close the terminal and everything is gone. Decisions you locked last week, context from three projects, that debugging session where you finally figured out the root cause. All lost. You re-explain yourself every single time. MEMORY.md is supposed to help. It is a flat file with a 200-line and 25KB cap, no search, and no structure. Worse, the AI decides what gets remembered and what gets thrown away. You have no control over what it keeps, what it summarizes, and what it silently drops. That is the core problem. claude-brain puts you in control of your data. Every word of every chat of every conversation across every project is auto-captured. Nothing is lost. You decide what matters. I spent weeks building a real solution. It is called claude-brain. It is free, open source, and running right now on 1,321 sessions, 67,000+ messages, and 9 projects. What Claude Knows With the Brain Without it, Claude starts every session as a stranger. With it,