Observed arrival · 2026-10-09
Forkbomb races coding agents against your tests
An open-source macOS tool runs coding agents in separate repository forks, tests their patches, and keeps the first one that passes.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- macOS developers using coding agents and test suites
- Worth noticing
- The displayed run starts from 4/14 passing tests; a “rewriter” fork reaches 14/14 before three rivals are killed.
Field notes
The homepage walks through a recorded Claude Code run on a demo calculator: baseline 4/14 tests passed, and the rewriter fork reached 14/14 in 38.7 seconds; the other three were killed. It reports APFS clonefile snapshots, macOS Seatbelt sandboxing, and a 119-test CLI suite, while explicitly noting the animated fork tree is illustrative rather than a recording. The project identifies itself as MIT-licensed and macOS-only today.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue