Bug Description

MemPalace hook scripts (mempal-stop-hook.sh, mempal-precompact-hook.sh) fail on Windows because they use python3 which doesn't exist on Windows. Python is registered as python on Windows.

Error Message

/c/Users/USER/.claude/plugins/cache/mempalace/mempalace/3.0.14/hooks/mempal-stop-hook.sh: line 5: python3: command not found

Affected Files

• hooks/mempal-stop-hook.sh (line 5)
• hooks/mempal-precompact-hook.sh (line 5)

Current Code

echo "$INPUT" | python3 -m mempalace hook run --hook stop --harness claude-code

Suggested Fix

Use a cross-platform Python command resolution. For example:

PYTHON_CMD="${PYTHON_CMD:-$(command -v python3 2>/dev/null || command -v python 2>/dev/null)}"
echo "$INPUT" | "$PYTHON_CMD" -m mempalace hook run --hook stop --harness claude-code

Or simply use python which works on both platforms (Python 3 is now the default python on most systems).

Environment

• OS: Windows 11 Pro
• Shell: Git Bash (bash)
• Python: 3.x (available as python, not python3)
• MemPalace version: 3.0.14
• Harness: Claude Code