51
invars
v0.1.4 ExperimentalDeclarative data validation engine using invariants executed on Polars DataFrames.
Apache-2.0 Edition 2024 MSRV 1.92.0
Quick Verdict
- ✓Actively maintained (updated 10d ago)
- !Pre-1.0: API may have breaking changes
- ✓Tiny footprint (50KB, 3 deps)
- ✓Permissive license (Apache-2.0)
Security
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Downloads
87
Dependents
0
Releases
6
Size
50KB
Deep Insights
📊
Download activity
87 downloads in the last 30 days (3/day avg).
🪶
Minimal dependencies
Only 3 direct dependencies. Lean dependency tree means faster builds and lower supply chain risk.
📐
Compact crate
At 49KB, invars is lightweight. Small crate size correlates with focused, well-scoped functionality.
Health Breakdown
Maintenance 12/25
Recency, release consistency, active ratio
Quality 16/25
Yanked ratio, deps, size, maturity, features
Community 6/20
Reverse deps, ownership, ecosystem
Popularity 2/15
Downloads, momentum, growth trend
Documentation 15/15
Docs, repo, license, metadata
Download Trend
Daily downloads · last 90 days
1/day avg
Version Adoption
v0.1.1
21%
v0.0.1
20%
v0.1.0
20%
v0.1.4
20%
v0.1.3
19%
Release Timeline
6 releasessince 2026
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Feature Flags
polars
README
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Maintainers
Dependencies
3
direct dependencies
Dependents
0
crates depend on invars