JakeWang

Writing

• Negative Results4 min read

  • 28% fewer input tokens
  • 4% lower estimated cost

  I cut 28% of my coding agent's input tokens. The cost fell about 4%.

  A pre-registered experiment on trimming Codex's built-in instructions. Fewer tokens, almost the same cost, and worse results.

• Merged8 min read

  • 11.5 GiB peak memory before the fix
  • 0.66 GiB after, same output

  An AI-assisted PR is still your PR

  I typed four sentences. AI agents found a quadratic memory bug in SPIRV-Tools, fixed it and opened the pull request. What was left for me.

• Agent AAR5 min read

  • 1 bad decision by the agent
  • 6 missing layers around it

  One bad decision, six missing layers

  An after-action review of the PocketOS database deletion. What the agent did, and the six infrastructure decisions that made it so hard to recover from.

Work

• Argon

  MongoDB sandboxes for AI agents. Open source, and I maintain it.

• LineupFinder

  Festival lineups and set times. Run day to day by AI agents.

• OpenPlainEnglish

  A browser extension that turns health jargon into plain English.

• CHROMAVECT

  Music. Otis Horizon is on Spotify.

Merged upstream

• SPIRV-Tools
• Grafana
• Apache Commons IO
• Prometheus client_golang
• Axios
• zerolog

Bug fixes sent to open-source projects, working with AI coding agents.