spec: Phase 3 dynamic inference brain — feature gating + temporal routing
7 adaptive pathways modulated by ISV at inference: feature gating
(WHICH features matter), temporal routing (HOW MUCH history per
feature), branch gating, gamma mod, risk budget, Mamba2 decay,
branch confidence. Model adapts to unseen regimes in 2-3 bars.
Pearls: P6 feature-level ISV gating.
Gems: G6 per-feature temporal routing.
Novels: N8 dynamic inference adaptation, N9 graceful cold start.
4 new weight tensors (78-81), 4608 params. Tasks 14-16.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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