2479 2026 02 17 Thinking Delta Tui Integration 09df255d

Thinking delta TUI integration (core routing, panel wiring, commands, tests)

Summary

Implemented end-to-end thinking stream integration for TunaCode TUI:

• Core now routes thinking_delta independently of text_delta
• UI now has a dedicated muted #thinking-output panel with throttled updates and bounded buffering
• /thoughts command toggles reasoning display on/off
• Final assistant response extraction now includes assistant text blocks only
• Added unit tests for core routing, thinking renderer behavior, and latest response extraction semantics

Files changed

• src/tunacode/core/agents/main.py
• src/tunacode/ui/renderers/thinking.py (new)
• src/tunacode/ui/styles/layout.tcss
• src/tunacode/ui/app.py
• src/tunacode/ui/commands/thoughts.py (new)
• src/tunacode/ui/commands/__init__.py
• tests/unit/core/test_thinking_stream_routing.py (new)
• tests/unit/ui/test_thinking_renderer.py (new)
• tests/unit/ui/test_app_latest_response_text.py (new)

Validation

• uv run ruff check src/tunacode/core/agents/main.py src/tunacode/ui/app.py src/tunacode/ui/commands src/tunacode/ui/renderers/thinking.py ✅
• uv run pytest tests/unit/core/test_thinking_stream_routing.py tests/unit/ui/test_thinking_renderer.py tests/unit/ui/test_app_latest_response_text.py tests/unit/ui/test_command_contracts.py -q ✅
• uv run ruff check --fix . ✅
• uv run pytest ⚠️ Fails in vendored tinyAgent/tests/* collection due import module resolution (ModuleNotFoundError: No module named 'tests....')