v1.7.0 - Internal Refactoring & Code Quality

What's Changed

Internal Refactoring - Code Quality Improvements

This release focuses on internal code quality with no user-facing changes. All features work exactly as before, but the codebase is now significantly cleaner and more maintainable.

Major Refactoring:

• ✅ SessionState Component - Centralized session management

  • Replaced 8 scattered instance variables with single cohesive component
  • Single source of truth for query count, conversation history, timing, and accumulated usage
  • Cleaner delta calculation for AWS Strands cumulative token tracking

• ✅ CommandRouter Component - Type-safe command parsing

  • Replaced 330+ lines of manual string parsing with enum-based routing
  • All commands now use CommandType enum for type safety
  • Easier to add new commands and maintain existing ones
  • Better separation of command parsing from command handling

Quality Metrics:

• 510 tests passing (100% pass rate)
• 100% mypy type coverage
• Ruff linting compliant
• chat_loop.py reduced from 3,188 to 2,948 lines (-240 lines)

Components Extracted:

1. StreamingEventParser - Event parsing logic
2. ResponseRenderer - Response formatting and display
3. UsageExtractor - Token/metadata extraction
4. CommandRouter - Command parsing and routing
5. SessionState - Session state management

Full Changelog

See CHANGELOG.md for complete version history.