In standard developer benchmarks and conversational evaluations, autonomous artificial intelligence agents interact with simplified tool interfaces. Function signatures consist of flat key-value pairs: passing a string filename, an integer user identifier, or a boolean confirmation flag. When evaluated exclusively against these elementary primitives, modern foundation models achieve near-perfect compliance, leading systems engineers to assume that […]
In autonomous tool-calling systems, the most insidious failure mode is not a syntax error or a broken JSON bracket. Modern fine-tuned reasoning models and grammar-constrained decoding engines generate syntactically valid JSON payloads with high reliability. Instead, the primary breakdown occurs at the semantic grounding boundary: the model populates structured arguments with fabricated, unverified, or non-existent […]