Dhee is an open-source context firewall for AI coding agents. It decides what agents should see, remember, forget, compress, and expand each turn, so Claude Code, Codex, Cursor and other MCP clients stop drowning in stale files, logs and transcripts. It runs locally, supports repo-shared context, handoff state, evidence pointers, Dhee UI, and reports 99.4% R@5 on LongMemEval.