letter-shell Integration

Overview

Use this skill to integrate letter-shell as an embedded debug console safely. Prove the transport, shell task or polling loop, command registration, and authorization policy before exposing commands that modify flash, reset devices, or change production state.

When To Use

Use this skill when:

• The user wants to add or debug letter-shell in MCU firmware.
• Shell input/output is missing, commands are not found, history/completion behaves wrong, or shell blocks the system.
• The task involves UART shell, RTT shell, RTOS shell task, command export macros, login/password, or runtime debug commands.

Do not use this skill when the serial port itself is not trustworthy. Use embedded-serial-log-debug first.

First Questions

Ask for: