Decision Workspace
barbican vs holdit vs nono-rs
Side-by-side comparison of Rust crates
51
barbican
experimentalv1.6.0
Safety layer for Claude Code: classifier-gated bash hook + MCP server blocking dangerous command compositions.
39
holdit
experimentalv0.0.0
A safety harness for AI agents to prevent catastrophic command execution.
51
nono-rs
experimentalv0.5.0
The opposite of YOLO - a capability shell for AI agents
Core Metrics
| barbican | holdit | nono-rs | |
|---|---|---|---|
| Health Score | 51 | 39 | 51 |
| Total Downloads | 63 | 18 | 243 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 0 | 0 |
| Releases | 4 | 1 | 15 |
| Last Updated | 15d ago | 73d ago | 99d ago |
| Age | 15d | 2m | 3m |
Health Breakdown
barbican
Maintenance
18
Quality
13
Community
6
Popularity
2
Documentation
12
holdit
Maintenance
9
Quality
15
Community
6
Popularity
2
Documentation
7
nono-rs
Maintenance
17
Quality
10
Community
6
Popularity
3
Documentation
15
Technical Details
| barbican | holdit | nono-rs | |
|---|---|---|---|
| Version | 1.6.0 | 0.0.0 | 0.5.0 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | MIT | MIT | Apache-2.0 |
| Dependencies | 23 | 0 | 22 |
| Crate Size | 324KB | 1KB | 106KB |
| Features | 1 | 0 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2021 |
| MSRV | 1.91 | — | 1.74 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •barbican leads with a health score of 51/100, but none of the options score above 80.
- •nono-rs has the most downloads (243), suggesting wider adoption.
- •holdit, nono-rs are pre-1.0 — API may change.