rlm-agent-runtime

Kernel-side Python runtime shim for Zero, the RLM coding agent CLI. This package is installed into the persistent IPython kernel that Zero's TypeScript host launches for each session — it is not meant to be installed or imported standalone.

It provides:

• host_request / run — the kernel side of the generic host bridge. Python skills call await host_request("<type>", {...}) to make typed requests of the TypeScript host over an ipykernel comm channel, and await run(prompt, ...) to spawn a recursive child agent.
• Continual harness state (rlm.harness) — persisted prompt notes, memory, skills, subagent specs, and refinement events, scoped per-session by default with an explicit global_=True opt-in for cross-session entries.
• MCP skill helpers (rlm.mcp_base) — shared error types and config-directory resolution for Python skills that call out to MCP-integrated tools.

Installation

Zero installs this automatically as part of its first-run kernel bootstrap. Manual installation (pip install rlm-agent-runtime or uv add rlm-agent-runtime) is only needed if you're pointing ZERO_KERNEL_PYTHON at a Python environment you manage yourself.

License

MIT