Crabby
Claude Code skill that reviews code like the Rust compiler
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I built a Claude Code skill called crabby that makes Claude output diagnostics in rustc error format - severity codes, location arrows, causation spans, and a paste-able fix every time. The twist: Claude becomes Ferris the crab, grumpy and unimpressed, but technically precise.The format works for code review, writing review, architecture, strategy - anything you submit. The "writing review" example tends to surprise people: it flags passive voice in a postmortem with the exact same error[W002] format as a SQL injection.https://github.com/ekadetov/crabby
HN · launched Apr 5, 2026 · 6 upvotes (top 72%) · 1 view
Niche: automated code review tools · 204 launches, 7 in the last 7 days ▼ -22% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- AI-native
- Hobby / open-source project
More like this: all 204 launches in automated code review tools →
Could you build this?
Yes It is a prompt configuration/skill for Claude Code that defines a persona and specifies diagnostic formatting rules matching rustc.
Discussion
2 comments analyzed.
Competitors
Other products that read as similar to this one : 456 launches clear the similarity bar, closest 8 shown.
Attention rank: #381 of 457 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 143 days after the earliest competitor.
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