feat(keymap): add option to disable command mode on Escape

[ameenalkhaldi]

This pull request was authored by a coding agent.

Summary

Adds a new enter_command_mode_on_escape configuration option to the keymap settings, allowing users to disable the Escape key from entering command mode in the cell editor.

This addresses the issue where users' muscle memory expects Escape to clear hint popups (like autocomplete or signature help) rather than navigate to command mode.

Changes

• Added enter_command_mode_on_escape: NotRequired[bool] to backend KeymapConfig in marimo/_config/config.py
• Added corresponding field to frontend config schema in config-schema.ts
• Updated navigation logic in navigation.ts to respect the config option
• Regenerated OpenAPI spec and TypeScript types

Usage

Users can set this in their marimo config (e.g., ~/.marimo.toml):

[keymap]
enter_command_mode_on_escape = false

Default is true (existing behavior preserved).

Test plan

• Backend config tests pass (pytest tests/_config/)
• Frontend typecheck passes (make fe-typecheck)
• Python checks pass (make py-check)
• OpenAPI codegen successful (make fe-codegen)

Closes #7426

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Project	Deployment	Actions	Updated (UTC)
marimo-docs	Ready	Preview, Comment	Jun 17, 2026 11:24am

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