ASA: Backbone-Training-Free Representation Engineering for Tool-Calling Agents
Activation Steering Adapter (ASA), a training-free, inference-time controller that performs a single-shot mid-layer intervention and targets tool domains via a router-conditioned mixture of steering vectors with a probe-guided signed gate to amplify true intent while suppressing spurious triggers is proposed.
Youjin Wang, Run Zhou, Rong Fu et al.
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