The Patent on Everyone's Pattern: How Mistral Claimed the Agentic Loop
On June 30, 2026, the USPTO granted Mistral AI US Patent 12,670,045 B1 — "Code implemented tool calls." The patent's Claim 1 describes a method where an LLM writes a code block encapsulating one or more tool calls, a server executes that block in a sandbox, pauses on "pending" calls that require client-side execution, transmits them to the client, receives results, resumes the code substituting those results, and returns the final output to the model. Filed March 4, 2026, granted in under four months, it covers…