ReVonance Support Drafter (SFT, lora)

The Drafter agent of a LangGraph multi-agent support system for the fictional shop ReVonance. Base model TinyLlama/TinyLlama-1.1B-Chat-v1.0, fine-tuned with LoRA (merged). Stage: sft (sft = supervised on the response simulator; dpo = then aligned with human and critic preferences via Direct Preference Optimisation).

Evaluation (held-out simulated tickets, full multi-agent graph)

stage method temperature first-draft approval fda 95% CI resolved avg drafts
base none 0 0.006 0.00โ€“0.03 0.006 2.988
sft lora 0 0.988 0.96โ€“1.00 0.988 1.024
sft lora 0.7 1 0.98โ€“1.00 1 1

Knowledge-base fingerprint: f9cdb07b5df6. Demo model trained on synthetic data; it only knows the toy policies of ReVonance.

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