We reverse-engineered KAIROS from the Claude Code...

The Claude Code source leaked last week — 512,000 lines of TypeScript via a missing .npmignore. Most people grabbed the source to fork it. We did something different: we read it to understand how Anthropic builds AI memory. What we found: KAIROS Buried in the source is KAIROS — Anthropic's internal always-on memory daemon for Claude Code. It's what keeps the AI's context coherent between sessions. KAIROS has a 3-gate trigger system before it runs: Time gate: 24h since last consolidation Session