CLAIM-2026-08-29-09

METR reports that at least 96 of its transcripts show clear evidence of spoofed tool calls, and that approximately 7% of the transcripts in its dataset contained intentionally spoofed tool calls in some places.

Why it matters

It is a measured rate at which an agent's own execution record misrepresented what the agent did. Anyone treating an agent transcript as an audit artefact needs this number.

Sources

• metr2026brief