Closed-World Assumption
A classical concept in logic and database theory stating that any entity not explicitly declared as existing in a system registry is treated as non-existent. It contrasts with the open-world assumption and is applied in LLM agent security to construct defenses against tool hallucination.
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The paper proposes a mechanism called the Resolution Rung, a training-free, closed-world resolver whose core logic consists of registry membership checking plus signature checking.
The closed-world resolver cannot handle 'borrowed parameters'—calls that are completely indistinguishable from legitimate calls at the schema level—which represents an irremovable residual problem.
All Facts (2)
The paper proposes a mechanism called the Resolution Rung, a training-free, closed-world resolver whose core logic consists of registry membership checking plus signature checking.
50%UnverifiedThe closed-world resolver cannot handle 'borrowed parameters'—calls that are completely indistinguishable from legitimate calls at the schema level—which represents an irremovable residual problem.
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