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fix: run SessionStart hook async to prevent Windows terminal freeze

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The synchronous SessionStart hook blocked the TUI from entering raw
mode on Windows, freezing all keyboard input. The pure-bash
escape_for_json function is O(n^2) on Git Bash, taking 60+ seconds.

Running the hook async prevents the freeze while still injecting
superpowers context. Multiple users confirmed this workaround.

Fixes #404, #413, #414, #419
This commit is contained in:
Jesse Vincent
2026-02-05 11:33:58 -08:00
parent 689e2a77fc
commit 961052e0f9
2 changed files with 6 additions and 1 deletions
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4
RELEASE-NOTES.md
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@@ -28,6 +28,10 @@ Claude Code 2.1.x changed how hooks execute on Windows: it now auto-detects `.sh
Fix: hooks.json now calls session-start.sh directly. Claude Code 2.1.x handles the bash invocation automatically. Also added .gitattributes to enforce LF line endings for shell scripts (fixes CRLF issues on Windows checkout).
**Windows: SessionStart hook runs async to prevent terminal freeze**
The synchronous SessionStart hook blocked the TUI from entering raw mode on Windows, freezing terminal input. The pure-bash `escape_for_json` function is O(n^2) on Windows Git Bash, taking 60+ seconds. Running the hook async prevents the freeze while still injecting superpowers context.
### New Features
**Visual companion for brainstorming skill**

3
hooks/hooks.json
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@@ -6,7 +6,8 @@
"hooks": [
{
"type": "command",
"command": "${CLAUDE_PLUGIN_ROOT}/hooks/session-start.sh"
"command": "${CLAUDE_PLUGIN_ROOT}/hooks/session-start.sh",
"async": true
}
]
}