Add scripts/cuda-kernel-guard.sh — catches CPU/host leaks in .cu files:
printf, cudaMalloc/Free, host API calls, double-precision math (exp/log
instead of expf/logf), assert, file I/O. Filters comments and trailing
/* */ annotations. Zero false positives across 38 production kernels.
Extend gpu-hotpath-hook.sh to route .cu/.cuh files to the new guard.
Configure ruflo hooks in .claude/settings.json: pre-edit context loading,
post-edit pattern learning, post-command metrics, session-end persistence.
Fires for subagents too via Claude Code hook system.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Restore 45-action factored space via Branching DQN (Tavakoli 2018),
outputting 11 Q-values (5+3+3) instead of 45. This was reduced to 5
exposure-only actions during debugging and was never intended as permanent.
- Enable use_branching: true by default in DQNConfig and DQNHyperparameters
- Add branching paths to select_action_with_confidence and select_action_inference
- Update agent.rs select_action_factored for branching-aware selection
- Expand CountBonus to per-branch tracking with bonuses_branched()
- Add order_type + urgency distribution tracking in monitoring
- Add DQN_ORDER_ACTIONS=3, DQN_URGENCY_ACTIONS=3, DQN_TOTAL_ACTIONS=45 to CUDA header
- Fix 7 pre-existing clippy doc_markdown errors in regime_conditional.rs
- Fix pre-existing cognitive_complexity in replay_buffer_type.rs (extract helpers)
- Fix flaky GPU test OOM under parallel execution (CPU fallback + test VRAM safety)
- Delete unused flash_attention submodules (block_sparse, causal_masking, etc.)
- Add GPU hot-path guard scripts and ensemble/hyperopt adapter improvements
Tests: ml-dqn 416/0, ml 905/0, clippy 0 errors on both crates
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
