fastify / fastify
Fast and low overhead web framework, for Node.js
Code health
fastify/fastify scores 8.2 out of 10 on defect risk, which Repowise rates Good. Maintainability scores 9.1 out of 10. Static performance risk scores 10.0 out of 10. The three are scored separately and never blended into a single number. 27 of 377 files are git hotspots, the places where changes and bug fixes concentrate.
Full health report- Files
- 377
- Symbols
- 810
- Modules
- 10
- Doc pages
- 198
- Dead exports
- 43
Where the risk concentrates
All 27 hotspotsRanked by prior bug fixes and change frequency, mined from the full git history rather than from the code alone.
| File | Churn | Prior fixes | Maintainers | Commits 90d |
|---|---|---|---|---|
| validation.jslib | 98.0th %ile | 5bug magnet | 4 | 6 |
| fastify.js | 98.3th %ile | 4 | 16 | 20 |
| 404s.test.jstest | 97.4th %ile | 2 | 4 | 3 |
| hooks.test.jstest | 96.4th %ile | 2 | 5 | 4 |
| router-options.test.jstest | 99.3th %ile | 1 | 6 | 3 |
| schema-validation.test.jstest | 99.0th %ile | 1 | 7 | 4 |
Read more about fastify/fastify
- 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
- 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 inAsk grounded questions over the indexed code
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Average health across every file, straight from the latest index.
[](https://repowise.dev/repo/fastify/fastify)How fastify/fastify works
Fast and low overhead web framework, for Node.js This page is an auto-generated, always-fresh map of the fastify/fastify 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 377 source files, 810 symbols, and 6 languages, organised into 10 modules, led by javascript, markdown, typescript. Static analysis leaves 857 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.