ToolACE

“Prior works often rely on annotated or synthetic APIs, which lack reliability and struggle to scale across larger tool sets. These approaches also face limitations in diversity, quality, and coverage.”

“While APIGen~liu2024apigen, ToolACE~liu2024toolace, and DeCRIM~ferraz2024llm produce verified function-call traces from fully specified queries, and works such as Clarify-When-Necessary~zhang2023clarify theorize when to seek clarification without training a model for it, DiaFORGE unifies three mutually reinforcing contributions absent from any single prior work: (i)~disambiguation-centric synthesis that structurally obliges the assistant to navigate near-duplicate API surfaces via injected distractors and a two-phase coercive dialogue protocol; (ii)~reasoning-trace SFT that jointly teaches tool disambiguation and argument solicitation in a single multi-turn curriculum across 3--70~B parameter models; and (iii)~a dynamic agentic evaluation that redeploys fine-tuned models in a live conversational loop with a simulated user, measuring end-to-end goal completion rather than isolated turn accuracy.”