ResearchResearch paperReasoning & Planning1 source · Oct 8, 2026

TaReD: Tool-Aware Recursive Decomposition for Long-Horizon Tasks

Agents combine reasoning with tools to interact with external systems and complete real-world tasks.

Key points

  • Early agents typically interleave reasoning and actions along a single execution chain.
  • Recursively decomposing a complex task into smaller subtasks offers a natural solution, yet effective decomposition must account for the system's capabilities so that each subtask can be executed by the available tools.
  • We propose tool-aware recursive decomposition, which organizes tools by functional relationships into a hierarchy of capabilities.
  • During execution, the agent discovers tools on demand and uses the hierarchy to recursively decompose a complex task into a subtask tree whose levels are aligned with the capabilities required at each stage.

Sources (1)

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