scientistproject/Scientist.net

Health v2 · maintenance only

Adoption not part of the score

1488 stars · 91 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Scientist.net is a .NET library for carefully refactoring critical code paths by running old and new implementations side by side in production. It is a port of GitHub's Ruby Scientist library, measuring and comparing results while always returning the control behavior's value.

Use cases

• refactor a critical code path safely by comparing old and new behavior under real load
• run an experiment comparing a legacy permission check with a new implementation
• measure and log duration and result mismatches between control and candidate code
• gradually roll out refactored logic while swallowing candidate exceptions
• publish experiment results to a custom sink like a database or logger

When to choose

• you are refactoring high-risk production code and want to verify behavioral equivalence before switching over
• you want a battle-tested port of GitHub's Scientist pattern for .NET
• you need timing and mismatch data for old vs new implementations without affecting returned results

When to avoid

• you need feature flags or gradual rollout without behavior comparison - use a feature flag library instead
• your code path is cheap to test with unit tests alone and doesn't need production comparison
• you are not on the .NET platform

Facets

library · maturity active

testing benchmarking middleware developer-tools apis dotnet cross-platform refactoring experimentation behavior-comparison a-b-testing scientist-port csharp

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markdown · JSON · MCP: product_card(name="scientistproject/Scientist.net")