Let your notebook agent see what you see.
Point to a notebook result and say what should change. Lens gives your agent the producing cell, related notebook context, and an annotated image to ground its work in the result you marked.
While the agent works, Lens can show which cell it is changing or checking, bring the result into view for review, and keep completed requests in History for another pass.
Read the user guide for the code-mode agent workflow.
Quick start
Open a local marimo notebook with Lens available:
uvx --with marimo-lens marimo edit notebook.py
Mount Lens in one notebook cell:
from marimo_lens import Lens
lens = Lens()
lens
Keep the cell mounted. Press Select, then click a point or drag a region inside a rendered output. Add a note with what you want the agent to inspect or change.
Connect an agent
Install the Lens skill:
npx skills add marimo-team/marimo-lens
After selecting an output and adding a note, ask the agent:
Resolve my Lens request.
See Agent workflow to connect a code-mode agent.
Python API
The package exports Lens, LensContext, LensError, LensReferences,
NotebookReference, SelectionReference, and __version__. The version string
comes from the installed marimo-lens distribution metadata.
Agent integrations use five methods:
| Method | Behavior |
|---|---|
lens.context() |
Returns detached selection context with lazy notebook text |
lens.start_activity(cell_id, *, duration_ms=None, label=None, message=None) |
Marks current work until stopped or its optional hold ends |
lens.stop_activity(cell_id) |
Stops activity attached to that exact cell |
lens.reveal(cell_id, *, duration_ms, label=None, message=None) |
Brings one verified or explanatory cell into view |
lens.resolve(selection_ids, *, expected_revision, summary=None) |
Moves one or more selections to History in one guarded operation |
The Python API reference documents return values, errors, limits, and lifecycle behavior.
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