SessionStart hook fails when plugin path contains a space (unquoted ${CLAUDE_PLUGIN_ROOT})

[DavOnGit]

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Description

The SessionStart hook fails on startup when the plugin is installed under a path containing a space (e.g. a Windows home folder like C:\Users\Win 10\).

Error

SessionStart:startup hook error
Failed with non-blocking status code: /c/Users/Win: /c/Users/Win: Is a directory

Root cause

In hooks/hooks.json the command is not quoted:

"command": "bash ${CLAUDE_PLUGIN_ROOT}/hooks/session-start.sh"

When ${CLAUDE_PLUGIN_ROOT} expands to a path containing a space (e.g. /c/Users/Win 10/.claude/plugins/...), the shell word-splits it and bash receives /c/Users/Win as the script argument, producing the Is a directory error.

Fix

Quote the path:

"command": "bash \"${CLAUDE_PLUGIN_ROOT}/hooks/session-start.sh\""

The internal session-start.sh already quotes its paths correctly (SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"), so only hooks.json needs the fix.

Environment

• OS: Windows 10 (Git Bash)
• Home folder with space: C:\Users\Win 10\
• Claude Code v2.1.159
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