Decision Workspace
ironflow-core vs a3s-flow vs minion-engine
Side-by-side comparison of Rust crates
53
ironflow-core
experimentalv1.3.1
Rust workflow engine with Claude Code native agent support
46
a3s-flow
experimentalv0.3.4
A3S workflow engine — JSON DAG execution for agentic workflows (Dify/n8n style)
46
minion-engine
experimentalv0.7.5
AI workflow engine that orchestrates Claude Code CLI — automate code review, refactoring, and PR creation with YAML workflows
Core Metrics
| ironflow-core | a3s-flow | minion-engine | |
|---|---|---|---|
| Health Score | 53 | 46 | 46 |
| Total Downloads | 190 | 97 | 206 |
| 30d Downloads | 190 | 97 | 206 |
| Dependents | 6 | 0 | 0 |
| Releases | 6 | 7 | 16 |
| Last Updated | 2d ago | 16d ago | 3d ago |
| Age | 10d | 18d | 14d |
Health Breakdown
ironflow-core
Maintenance
14
Quality
16
Community
8
Popularity
3
Documentation
12
a3s-flow
Maintenance
18
Quality
10
Community
6
Popularity
2
Documentation
10
minion-engine
Maintenance
16
Quality
8
Community
6
Popularity
3
Documentation
13
Technical Details
| ironflow-core | a3s-flow | minion-engine | |
|---|---|---|---|
| Version | 1.3.1 | 0.3.4 | 0.7.5 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | MIT | MIT | MIT |
| Dependencies | 18 | 17 | 29 |
| Crate Size | 94KB | 107KB | 7.4MB |
| Features | 5 | 0 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | 1.94 | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •ironflow-core leads with a health score of 53/100, but none of the options score above 80.
- •minion-engine has the most downloads (206), suggesting wider adoption.
- •a3s-flow, minion-engine are pre-1.0 — API may change.