Claude defaults to bash/Unix syntax on Windows instead of PowerShell

Even when Claude Code is running on Windows and the platform is clearly identified as win32, the Claude model defaults to bash/Unix syntax for shell commands and Unix-style filesystem paths. This results in commands that don't work in PowerShell or CMD, and repeated failed attempts before the correct syntax is used.

Examples observed:

• Using /usr/local/bin/, /dev/null, and similar Unix paths on Windows
• Writing shell commands with bash syntax (heredocs, backtick substitution) instead of PowerShell equivalents
• Repeatedly retrying Bash tool calls after failures instead of adapting to the Windows environment

Expected: When the platform is win32, Claude should default to PowerShell-compatible syntax for shell commands and Windows-style paths, and should recognise when the Bash tool is unavailable and adapt accordingly.

Environment: Windows 10 Pro, Claude Code native