# Project Bugs
## Fixed Bugs
### 1. PowerShell Select-String with quoted patterns blocked ✅ FIXED (2024-12-17)
**Issue:** The command validation was incorrectly blocking PowerShell commands that contained parentheses in quoted strings.
**Example that was failing:**
```
Select-String -Pattern "667eea|764ba2" -Path "src\components\*.css"
```
**Error:**
```
Command contains unsafe patterns (chaining or subshells). Only single commands are allowed.
```
**Root Cause:** The security validation in `run_command()` was checking for parentheses `(` and `)` anywhere in the command string, even when they appeared inside quoted strings (which is safe).
**Fix:** Updated the validation logic in `command_execution_tools.py` to:
1. First check for command chaining operators (`;`, `&`, `|`, `` ` ``)
2. Then intelligently check for parentheses by first removing all quoted strings
3. Only block parentheses that appear outside of quotes (which could be subshell expressions)
This allows safe patterns like `"667eea|764ba2"` while still blocking dangerous patterns like `$(evil-command)` or unquoted subexpressions.
**Testing:** After reloading Claude, test with the command that was previously failing.
