S1 of the 2026-09-08 layout plan: DyPE/SEGA/SPA/HAP node classes now live
in nodes/{dype,sega,spa,hap}.py with engine imports via dual-form try/except
(loader-relative ..src / flat src). Entry __init__.py keeps extension
registration only. nodes/__init__.py re-exports the full 8-class surface
(transitional src/*_node re-exports until S2/S3 land). All patch nodes
category -> WMNodes/image. New tests/test_structure.py guards the layout.
G1: wrapper now mirrors the real ComfyUI optimized_attention signature (mask/attn_precision/skip_reshape/skip_output_reshape in slots 5-8) and forwards orig() with the correct positional order - the pre-fix wrapper fed skip_reshape into the mask slot on the unmasked Anima/cosmos path (AttributeError: bool.ndim).
G2: pytest mock _sdpa flipped to the real ComfyUI signature (it matched the wrapper's inverted convention, hiding G1); conformance tripwire added (tests/test_orig_call_convention.py).
G3: HAP decline-guards - non-square attention (cross-attn) and plan/model head-count mismatch decline to plain attention with one-time logs instead of crashing or computing wrong math.
G4: _hrdit_carry_state() re-applies HRDiT patcher attrs after ModelPatcher.clone() in both apply functions (+ _hrdit_state_ref indirection), so SPA->HAP / HAP->SPA chaining is order-independent.
SPA non-square guard: averaged passes apply spatial RoPE to both q and k (only valid for square self-attention); Anima cross-attention (q_len != k_len) crashed einsum - now declined to plain attention.
README: v2.7.1 changelog + HAP model-specificity/v1-limitation notes.
WildAi