SkillGraph: Graph Foundation Priors for LLM Agent Tool Sequence Recommendation

ArXi:2604.19793v1 Announce Type: cross LLM agents must select tools from large API libraries and order them correctly. Existing methods use semantic similarity for both retrieval and ordering, but ordering depends on inter-tool data dependencies that are absent from tool descriptions. As a result, semantic-only methods can produce negative Kendall-$\tau$ in structured workflow domains. We