The Tool Harness Meta Didnt Tell You About

Meta just dropped Muse Spark, their first major model release in a year. The benchmarks show it competitive with Claude Opus 4.6 and GPT 5.4. But thats not the interesting part. Whats interesting is what Simon Willison discovered when he started poking around the meta.ai interface. He asked a simple question: what tools do you have access to? The answer revealed 16 tools. And Meta didnt hide them. The Tool Stack Nobody Mentioned Heres what Meta quietly shipped: Browser tools. browser.search , browser.open , browser.find . Web search through an undisclosed engine, page loading, and pattern matching against content. Basic but essential. Meta content search. meta_1p.content_search can search Instagram, Threads, and Facebook posts semantically—but only for content the user can access, created since 2025-01-01. Parameters include author_ids , key_celebrities , commented_by_user_ids , liked_by_user_ids . Thats a lot of filtering power. Code Interpreter. container.python_execution runs Python