Decision Workspace
jsonnlp vs claude-codes vs jacs
Side-by-side comparison of Rust crates
36
jsonnlp
growingv0.0.4
an implementation of the JSON-NLP data structure
62
claude-codes
growingv2.1.53
A tightly typed Rust interface for the Claude Code JSON protocol
61
jacs
growingv0.9.12
JACS JSON AI Communication Standard
Core Metrics
| jsonnlp | claude-codes | jacs | |
|---|---|---|---|
| Health Score | 36 | 62 | 61 |
| Total Downloads | 5.2K | 3.6K | 17.1K |
| 30d Downloads | 5 | 398 | 768 |
| Dependents | 0 | 0 | 56 |
| Releases | 4 | 24 | 34 |
| Last Updated | 1764d ago | 7d ago | 2d ago |
| Age | 4y 10m | 7m | 1y 11m |
Health Breakdown
jsonnlp
Maintenance
9
Quality
8
Community
6
Popularity
4
Documentation
9
claude-codes
Maintenance
19
Quality
18
Community
6
Popularity
4
Documentation
15
jacs
Maintenance
19
Quality
14
Community
11
Popularity
5
Documentation
12
Technical Details
| jsonnlp | claude-codes | jacs | |
|---|---|---|---|
| Version | 0.0.4 | 2.1.53 | 0.9.12 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | Apache-2.0 | Apache-2.0 | Apache-2.0 OR MIT |
| Dependencies | 4 | 14 | 78 |
| Crate Size | 9KB | 91KB | 475KB |
| Features | 0 | 6 | 13 |
| Yanked % | 50.0% | 0.0% | 0.0% |
| Edition | 2018 | 2021 | 2024 |
| MSRV | — | 1.85 | 1.93 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •claude-codes leads with a health score of 62/100, but none of the options score above 80.
- •jacs has the most downloads (17.1K), suggesting wider adoption.
- •⚠ jsonnlp has not been updated in over a year.
- •jsonnlp, jacs are pre-1.0 — API may change.