Plan-then-Retrieve Architecture Improves Tool Discovery in LLM Agents
October 14, 2026
A new study compares Retrieve-then-Plan (RtP) with Plan-then-Retrieve (PtR) architectures for tool-augmented agents. PtR uses Abstract Tool Stubs to generate retrieval queries, overcoming context window limitations in large API registries.
HOW THIS AFFECTS YOU
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builderUsing PtR can help your agents navigate large API sets without hitting context limits.
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researcherThis research provides a new paradigm for scaling tool-use capabilities.