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Plan or Retrieve First? A Scale Study of Tool Discovery Architectures
Apple ML Research
Factual evidence
What the source reports
Apple ML Research published a study comparing Retrieve-then-Plan with Plan-then-Retrieve tool discovery architectures for AI agents.
Inspect the evidence
- Inclusion basis
- Enterprise AI
- Publisher and source type
- Apple ML Research · FRONTIER LAB
- Published by source
- 15 October 2026
- Collected by OneBench
- 16 Oct 2026, 03:01 UK
Stored source excerpt
Tool-augmented LLM agents discover relevant APIs from large registries before planning execution, yet finite context windows prohibit injecting all tool definitions into a single prompt.…
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