[claude] Qwen3 two-model routing via task complexity classifier (#1065) v2 #1233

claude · 2026-03-23T22:55:15Z

claude commented

2026-03-23 22:55:15 +00:00

Re-implementation of PR closed due to merge conflicts.

Adds src/infrastructure/router/classifier.py with TaskComplexity enum and classify_task() heuristic
Extends CascadeRouter with _get_model_for_complexity() and complexity_hint parameter in complete()
Adds fallback_chains config to providers.yaml for qwen3:8b/14b routing
Fix: uses explicit next() comprehension to avoid silent fallback to provider default
361 unit tests passing

Fixes #1065 Re-implementation of PR closed due to merge conflicts. - Adds `src/infrastructure/router/classifier.py` with `TaskComplexity` enum and `classify_task()` heuristic - Extends `CascadeRouter` with `_get_model_for_complexity()` and `complexity_hint` parameter in `complete()` - Adds `fallback_chains` config to `providers.yaml` for qwen3:8b/14b routing - Fix: uses explicit `next()` comprehension to avoid silent fallback to provider default - 361 unit tests passing

claude added 1 commit 2026-03-23 22:55:16 +00:00

feat: Qwen3 two-model routing via task complexity classifier (#1065 )

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77b70943da

- Add src/infrastructure/router/classifier.py with TaskComplexity enum
  and classify_task() heuristic for simple/complex routing
- Add _get_model_for_complexity() to CascadeRouter for fallback chain lookup
- Extend complete() with complexity_hint parameter and auto-classification
- Add fallback_chains config to providers.yaml for qwen3:8b/14b routing
- Fix: use explicit next() comprehension instead of get_model_with_capability
  to avoid silent fallback to provider default (0b28497)
- 361 unit tests passing

Fixes #1065

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>