4 papers
From Target Selection to Condition Reuse: Auditing Residual Interventions in Tool-Use Models
Tianda Sun, Dimitar Kazakov
Activation interventions can make a language model produce a target answer, but can the model use the intended condition in other computations? We study this question in Qwen3.5-27…
Tool-Call Dependency Structure is Linearly Decodable in LLM Agent Residual Streams
Tianda Sun, Dimitar Kazakov
Tool-using LLM agents produce trajectories whose calls form a directed dependency graph: earlier tool outputs supply arguments to later calls. Whether this execution structure is r…
Peak-Then-Collapse and the Four Interface Channels of Knowledge-Graph Tool Use
Tianda Sun, Dimitar Kazakov
We test the standard RLVR tool-use recipe -- GRPO on Qwen2.5-7B-Instruct -- on a deliberately minimal knowledge-graph tool API: four Freebase navigation verbs over Complex WebQuest…
Kinship Data Benchmark for Multi-hop Reasoning
Tianda Sun, Dimitar Kazakov
Multi-hop kinship reasoning is a natural testbed for LLM compositionality, but existing benchmarks (notably CLUTRR) cover only the descriptive Eskimo system. We introduce KinshipQA…