Phantom: Open-Source 24/7 Autonomous Claude Agent with Self-Evolution, Persistent Memory, and Dynamic MCP Tool Creation

GitHub / r/ClaudeAI·medium signal

Phantom gives Claude its own dedicated machine — a co-worker that runs continuously on Slack, Telegram, email, and webhooks. Built on the Claude Agent SDK, it features three-tier vector memory (mention something Monday, it uses it Wednesday), LLM-judge-validated config rewrites after every session, and runtime MCP tool creation that persists across restarts. The project just open-sourced with strong Reddit traction (1,200+ upvotes). This is the most complete open-source 'always-on Claude' implementation yet.