Blogs

Do macOS agents hijack your screen? Benchmarking focus-free computer use

July 2026

How we benchmarked three macOS computer-use agents on a real, logged-in Mac, measuring a dimension every public benchmark ignores: whether the agent steals your cursor and foreground while it works.

Why concurrency didn't speed up our macOS accessibility-tree reads (and how we proved it)

July 2026

We built a concurrent prefetch to read a Mac's accessibility tree faster. Benchmarking showed it was ~20-26% slower. Here's the full investigation: the traversal benchmark, the parallelism probe, a GIL bracket test, and a multi-app control that pinned the real cause on the target app's single main thread.