� PERMANENT THREADING KNOWLEDGE BASE:
✅ CREATED COMPREHENSIVE DOCUMENTATION:
• docs/POWERSHELL-THREADING-RULES.md - Complete threading guide
• Enhanced ThreadSafeProgressCollector with usage examples
• Added to project structure documentation
• Saved to AI memory for future reference
� CRITICAL RULES DOCUMENTED:
• PowerShell cmdlets can ONLY call Write-* methods from main thread
• Background threads must QUEUE updates, never call Write-* directly
• ProcessQueuedUpdates() must ONLY be called from main thread
• Common mistakes and error symptoms clearly identified
� DESIGN PATTERNS PROVIDED:
• Periodic processing pattern (every 1 second)
• Completion-based processing pattern
• Manual processing points pattern
• Correct Task.WaitAll usage with timeouts
� IMPLEMENTATION CHECKLIST:
• Pre-implementation checklist for new cmdlets
• Debugging tips and error identification
• Code examples for correct and incorrect patterns
• Testing guidelines for threading compliance
� PREVENTS FUTURE REGRESSIONS:
• Clear documentation of the 'golden rule'
• Examples of common threading violations
• Patterns for all background operation types
• Reference for all future PowerShell module development
This ensures we never repeat the same threading mistakes!
PSMinIO Developer