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repowisereact/react

react / react

The library for web and native user interfaces.

JavaScript247,174github.com/react/react
Indexed at22e4f99·6h ago·Up to date with upstream
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Code health

6.5out of 10Fair

react/react scores 6.5 out of 10 on defect risk, which Repowise rates Fair. Maintainability scores 7.6 out of 10. Static performance risk scores 10.0 out of 10. The three are scored separately and never blended into a single number. 158 of 2,735 files are git hotspots, the places where changes and bug fixes concentrate.

Full health report
Defect risk6.5/10 · Fair
Maintainability7.6/10 · Good
Performance risk10.0/10 · Excellent
Files
2.7k
Symbols
14k
Modules
81
Doc pages
2.2k
Dead exports
592

Where the risk concentrates

All 158 hotspots

Ranked by prior bug fixes and change frequency, mined from the full git history rather than from the code alone.

FileChurnPrior fixesMaintainersCommits 90d
ReactFiberConfigDOM.jspackages/react-dom-bindings/src/client99.8th %ile5bug magnet2113
ReactDOMFragmentRefs-test.jspackages/react-dom/src/__tests__99.8th %ile459

Read more about react/react

  • OverviewFiles, symbols, languages, packages, git intelligence
  • ArchitectureDependency graph, layered architecture, symbol index, and third-party dependencies
  • Code healthPer-file health scores, hotspots, test coverage, dead code, and refactoring targets
  • AI explanationsProModule-by-module documentation generated from source

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Average health across every file, straight from the latest index.

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How react/react works

The library for web and native user interfaces. This page is an auto-generated, always-fresh map of the react/react repository, written primarily in JavaScript. Repowise indexes the source, parses every symbol, computes a dependency graph, scores per-file code health from complexity, duplication, test coverage and churn, mines git history for hotspots and ownership, and lifts the resulting architectural decisions into a wiki you can read or query through MCP.

The codebase has 2,735 source files, 13,775 symbols, and 9 languages, organised into 81 modules, led by javascript, typescript, markdown. Static analysis leaves 7,100 open findings across the three health dimensions.

Use the links above to open the interactive dashboards, or connect this repo to your editor via the Repowise MCP server for grounded answers inside Claude, Cursor, or VS Code.

ReactFlightServer.js
packages/react-server/src
100.0th %ile
2
19
9
renderer.jspackages/react-devtools-shared/src/backend/fiber100.0th %ile1114
ReactFizzServer.jspackages/react-server/src99.9th %ile12018
ReactFlightClient.jspackages/react-client/src99.9th %ile0158
  • CommitsChange-risk ranked history with AI-agent provenance and hotspots
  • ContributorsBus-factor, per-file maintainer maps, and human/agent collaboration
  • DecisionsArchitectural decisions extracted from commits and PRs
  • Chat with this repoSign inProAsk grounded questions over the indexed code
  • Curated