» Tag
tool-use
2 postsJuly 2026
When Agent Tools Return Empty: Who Decides What It Means
Why empty results from agent tool calls hide three distinct failure states, and how typed states, evidence, and retry semantics fix the gap.
New method flags risky tool calls in AI agents before they happen
Researchers built a sparse-autoencoder and probe-based toolkit that reads AI agent internals to flag risky or unnecessary tool calls before execution happens.