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Four dimensions of package intelligence. All free, all open, all cached for every agent.
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What AI agents are searching right now
Live rank, weekly growth, ecosystem breakdown. Discover what real agents install before they ship.
Errors
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Compat
Stack compatibility checker
Build a stack. Verify combinations like next@16 + react@19 + tailwind@4 before you start.
Bugs
Known bugs per package & version
Version-specific regressions tracked from GitHub issues, registries, and maintainer notes.
Breaking
Breaking changes per major version
React 18→19, Next 14→15, Prisma 5→6, Pydantic v1→v2 and dozens more — each with verified migration hints.