Unhandled Promise Rejection: Bad substitution: chunks[1].startOffset

shell-quoteを呼び出すコマンド解析の経路から始め、次にスタックトレース内のparse.jsの箇所と、その周辺のpromiseのエラー処理を調べます。置換の失敗を引き起こす入力を特定し、コマンドが実行されるか、未処理の拒否ではなく、処理済みで明確な検証エラーが生成されることを確認します。

Summary

Command Code crashes with an unhandled promise rejection when parsing a shell command.

Environment:

• OS: Ubuntu Linux
• Node.js: v22.20.0
• Command Code: latest installed version
• Shell: [bash/zsh/etc.]

Error:
CRITICAL: Unhandled Promise Rejection!
This is an unexpected error. Please file a bug report.

ERROR: Error
REASON → Bad substitution: chunks[1].startOffset

Stack trace:
Error: Bad substitution: chunks[1].startOffset
at parseEnvVar (.../command-code/node_modules/shell-quote/parse.js:171:12)
at .../command-code/node_modules/shell-quote/parse.js:256:17
at Array.map ()
at parseInternal (.../command-code/node_modules/shell-quote/parse.js:113:17)
at parse (.../command-code/node_modules/shell-quote/parse.js:309:15)
...

Trace ID:
c58b9fbd1d12acef3534f9db896e4142

The error appears to originate while parsing the shell command/environment
variable substitution through the shell-quote dependency.

Expected Behavior

The command should either execute normally or return a handled/clear
validation error rather than crashing with an unhandled promise rejection.

Actual Behavior

The command should either execute normally.

Steps to reproduce the issue

The issue doesn’t require reproduction.

Command Code Version

1.53.0

Operating System

Linux

Terminal/IDE

Terminal

Shell

bash

Session file (optional)

No response

Fix prompt (optional)

No response

Additional context

This was reproduced on Ubuntu with Node.js v22.20.0.