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Wyllgner França de Amorim

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Open access Sep 2026

When the Trigger Fails: Metamorphic Testing of Tool-Calling AI Agents

Software agents built on foundation models depend on the prompt, the Trigger component, as their primary instruction interface, yet this component appears in roughly 1% of the test cases across the agent ecosystem. Recent literature calls for metamorphic testing of prompt behavior, but that call remains unanswered for...

Wyllgner França de Amorim · 0 citations

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