Writing

Short technical notes and explainers. Newest first.

• deadpush: guardrails for AI coding agents that commit your secrets · May 1, 2026 · 2 min read

  Long-running AI coding agents create secrets, debris, and bad commits. How deadpush watches the filesystem and blocks the damage before it ships.

• The hidden mobile data cost of YouTube video ads · May 15, 2024 · 3 min read

  Users often still download most of a skippable YouTube ad after hitting skip — and mid-roll ads can force re-download of main-video buffer. What our WWW '24 measurement found.