Environment

• OS: Windows 10 (10.0.19045)
• Node.js: child_process spawn

Summary

On Windows 10, spawning the claude command via Node.js child_process fails with ENOENT and EINVAL errors. The .cmd extension is not appended to the resolved command, and shell: true is not set for .cmd/.bat files.

On Windows, executables installed as npm-style shims (like claude) are .cmd files. Node's child_process.spawn will not locate claude without the .cmd extension (→ ENOENT), and starting Windows batch files (.cmd/.bat) without shell: true throws EINVAL on recent Node.js versions.

Root cause

File: supervisor-Cw-nY4TI.js

1. resolveCommand: the cmdCommands list does not include "claude", so the command is not resolved to claude.cmd.
2. createChildAdapter: shell: true is not set for commands ending in .cmd or .bat, which is required to launch batch files on Windows.

Suggested fix

1. Add "claude" to cmdCommands in resolveCommand.
2. In createChildAdapter, set shell: true when the resolved command ends with .cmd or .bat.