dual-claude-json-session-reads-home-not-root

Claude Code session reads /home/claude/.claude.json (claude-user), not /root/.claude.json (root-user). MCPs registered only in /root/.claude.json are invisible to active sessions. Both files must be kept byte-identical — any MCP registration, removal, or config change must be applied to BOTH files in the same operation. Divergence is silent and only detected when claude mcp list shows fewer servers than documented.