Decision Workspace
jsonlogic-fast vs tempus-engine vs herdingcats
Side-by-side comparison of Rust crates
51
jsonlogic-fast
experimentalv0.1.7
Fast, embeddable, cross-runtime JSON-Logic evaluation
43
tempus-engine
experimentalv0.1.0
Deterministic rule execution for decision systems
46
herdingcats
experimentalv0.5.0
Deterministic rule orchestration for ambiguity-free turn-based games.
Core Metrics
| jsonlogic-fast | tempus-engine | herdingcats | |
|---|---|---|---|
| Health Score | 51 | 43 | 46 |
| Total Downloads | 162 | 14 | 140 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 1 | 0 | 0 |
| Releases | 8 | 1 | 8 |
| Last Updated | 50d ago | 52d ago | 73d ago |
| Age | 1m | 1m | 2m |
Health Breakdown
jsonlogic-fast
Maintenance
16
Quality
13
Community
7
Popularity
3
Documentation
12
tempus-engine
Maintenance
10
Quality
14
Community
6
Popularity
1
Documentation
12
herdingcats
Maintenance
12
Quality
13
Community
5
Popularity
3
Documentation
13
Technical Details
| jsonlogic-fast | tempus-engine | herdingcats | |
|---|---|---|---|
| Version | 0.1.7 | 0.1.0 | 0.5.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | AGPL-3.0-or-later | MIT OR Apache-2.0 |
| Dependencies | 6 | 4 | 1 |
| Crate Size | 11KB | 10KB | 235KB |
| Features | 0 | 1 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2024 |
| MSRV | 1.75 | 1.75 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •jsonlogic-fast leads with a health score of 51/100, but none of the options score above 80.