Decision Workspace
knack-registry vs adk-server vs stand-in-macros
Side-by-side comparison of Rust crates
46
knack-registry
experimentalv0.3.1
Self-hostable HTTP registry server for knack Agent Skills
63
adk-server
growingv1.0.0
HTTP server and A2A protocol for Rust Agent Development Kit (ADK-Rust) agents
55
stand-in-macros
experimentalv0.1.0
Procedural macros for stand-in MCP server framework.
Core Metrics
| knack-registry | adk-server | stand-in-macros | |
|---|---|---|---|
| Health Score | 46 | 63 | 55 |
| Total Downloads | 131 | 9.6K | 163 |
| 30d Downloads | 0 | 4.9K | 0 |
| Dependents | 0 | 71 | 4 |
| Releases | 6 | 27 | 4 |
| Last Updated | 3d ago | 36d ago | 14d ago |
| Age | 17d | 7m | 4m |
Health Breakdown
knack-registry
Maintenance
13
Quality
12
Community
6
Popularity
3
Documentation
12
adk-server
Maintenance
18
Quality
14
Community
11
Popularity
5
Documentation
15
stand-in-macros
Maintenance
18
Quality
14
Community
8
Popularity
3
Documentation
12
Technical Details
| knack-registry | adk-server | stand-in-macros | |
|---|---|---|---|
| Version | 0.3.1 | 1.0.0 | 0.1.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT | Apache-2.0 | MIT |
| Dependencies | 11 | 44 | 3 |
| Crate Size | 32KB | 1.5MB | 9KB |
| Features | 0 | 7 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | 1.85 | 1.94.0 | 1.95.0 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •adk-server leads with a health score of 63/100, but none of the options score above 80.
- •knack-registry, stand-in-macros are pre-1.0 — API may change.