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Public code health report

expressjs/express

Complexity × churn hotspots for a public GitHub repo, analyzed July 1, 2026.

Health Score

93

healthy

Files

141

analyzed

Hotspots

1

high-risk files

Avg Complexity

4.7

cyclomatic

Hotspot map

Bubble size = complexity · Color = churn frequency · Position = risk

drag to pan
low → high churn

Higher-risk files float upward so the most volatile complexity clusters are easy to spot.

Top hotspots

01lib/response.js
cx 112 · ch 291%
02test/res.download.js
cx 6 · ch 132%
03lib/application.js
cx 41 · ch 130%
04test/app.render.js
cx 22 · ch 030%
05test/res.render.js
cx 2 · ch 030%
06test/res.sendFile.js
cx 7 · ch 030%
07test/res.send.js
cx 5 · ch 229%
08test/app.router.js
cx 15 · ch 026%
09test/express.urlencoded.js
cx 15 · ch 026%
10test/req.host.js
cx 1 · ch 026%

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tugtug security clean[![tugtug security clean](https://tugtug.com/api/badge/expressjs/express.svg?metric=security)](https://tugtug.com/report/expressjs/express)
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tugtug all exports used[![tugtug all exports used](https://tugtug.com/api/badge/expressjs/express.svg?metric=deadcode)](https://tugtug.com/report/expressjs/express)

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