# Action Items (Round 5 Post-Audit)
## High Priority (P0) - Stop the Line
- [ ] **#171: APR model outputs empty tokens**
- **Issue**: Inference runs but produces empty strings (e.g., "").
- **Context**: Separate from #170 (explosion fixed). Likely tokenizer or conversion metadata issue.
- **Impact**: APR GPU inference unusable.
- [ ] **#168: apr import GGUF 404 Error**
- **Issue**: Local path resolution logic failing.
- **Impact**: Import pipeline blocked for local files.
## Pending Infrastructure (P1)
- [x] **F-STRESS-520: Panic 411 (Empty Tensor)** ✅ PMAT-178
- Requirement: Test loading 0-byte tensor file.
- Fix: Added `f_stress_520_zero_byte_file_no_panic_pmat178` + truncated file tests
- [ ] **F-STRESS-521: Thread Hammer**
- Requirement: Concurrent access stress test for `Arc<Mutex>`.
## Completed ✅
- [x] **F-GPU-501: Value Bound Check (Explosion Fixed)**
- Root cause: Incorrect element ordering in Q4/Q6 dequantization.
- Fix: Matched sequential layout of fused kernels.
- Evidence: Hidden states stable (L2 ~82.0).
- [x] **AUDIT-301: Remove Expect from Hot Paths**
- [x] **F-REGR-231: APR v2 Binary Format**
- [x] **F-REGR-236: Cache Ghost**