server3 round 3 (2026-05-02): README_2026_05_02.md

README_2026_05_02.md

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+# Phase 5 Stage A v5 + Phase 7 multi-task LoRAs (server3, 2026-05-02)
+
+## Stage A v5 reasoning-only T1 LLM
+- 11203 rows of pure-Ling reasoning (T1 enhancer_generation)
+- DeltaPredictor (Qwen3.5-0.8B + LoRA r=16 + delta_head 7712-d)
+- Variable-only delta (4 slots: enhancer_motif, corr_bin, activity, position)
+- Used as init for Stage A v6 (reasoning + steering combined loss)
+
+## Phase 7 task LoRAs
+- merged_stub_20260502: trained on prod_samples_merged data (97% stub
+  reasoning); paper §D baseline for "effect of reasoning data quality"
+- reasoning_only_20260502: trained on Ling-expanded reasoning_traces
+  (T2: 9k Ling, T3: 4k Ling); paper §D rich-reasoning variant
+
+The pair forms an §D ablation showing that pure-Ling reasoning data
+gives stronger task LoRAs than mixed-stub data.