Let your notebook agent see what you see.
marimo-lens connects a point or region on rendered notebook output to the cells and context behind it. A live notebook agent can inspect that selection, show where it is working, and return the result for review.
Install and mount
marimo-lens supports Python 3.10 through 3.14 and marimo 0.24.0 or newer.
uv add marimo-lens
Mount one Lens in the notebook:
from marimo_lens import Lens
lens = Lens()
lens
Press Select, click a point or drag a region, then add an optional note.
Agent adapter
Code-mode agents connect through marimo_lens.agent:
import marimo_lens.agent as lens_agent
mounted = lens_agent.connect()
context = mounted.context()
connect() runs inside the live marimo kernel. It returns a MountedLens with
stable reconnection identity, context access, current cell-output capture,
activity, reveal, and resolution methods.
The distribution also installs the matching Agent Plugin and Agent Skill. Use
lens_agent.agent_skill() to locate its instructions from the notebook
environment.
Documentation
Source, issue tracking, and contributor documentation live in the marimo-lens repository.
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