Lazarus, a coding agent for long-horizon tasks
Persistent Python runtime keeps state alive across tool calls, unlike Claude Code's stateless tools.

sshd for Python sessions—agents and humans share one namespace with state persistence.
AI agent developers and Python developers needing persistent state
Jupyter kernels · tmux · screen
Persistent Python runtime keeps state alive across tool calls, unlike Claude Code's stateless tools.
Exactly-once execution for AI agents—solves duplicate payments, emails, trades from retries.
Fixes OpenClaw relay fragility with state persistence and keepalive, but upstream PR pending.
Slash agent token costs 164x with hook reducers and persistent daemon state.
Versioned code artifacts replace static LangGraph definitions for persistent runnable agent workflows.
Agent runtime infra, but 0 stars and crowded with LangGraph and Temporal.