Decision Workspace
agentcast vs structured-json-agent vs tdln-brain
Side-by-side comparison of Rust crates
44
agentcast
experimentalv0.1.0
Structured-output enforcer for LLM responses. Repair + validate + (optional) retry-with-LLM. BYO-LLM, BYO-schema.
35
structured-json-agent
experimentalv0.1.0
A typed and extensible library for creating and running Iterative AI Agents that generate structured JSON output.
49
tdln-brain
experimentalv0.2.0
Deterministic cognitive layer for LogLine OS: context → strictly-parsed TDLN intent.
Core Metrics
| agentcast | structured-json-agent | tdln-brain | |
|---|---|---|---|
| Health Score | 44 | 35 | 49 |
| Total Downloads | 17 | 21 | 144 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 0 | 2 |
| Releases | 1 | 1 | 2 |
| Last Updated | 64d ago | 172d ago | 184d ago |
| Age | 2m | 5m | 6m |
Health Breakdown
agentcast
Maintenance
9
Quality
13
Community
6
Popularity
1
Documentation
15
structured-json-agent
Maintenance
5
Quality
12
Community
6
Popularity
2
Documentation
10
tdln-brain
Maintenance
9
Quality
15
Community
7
Popularity
3
Documentation
15
Technical Details
| agentcast | structured-json-agent | tdln-brain | |
|---|---|---|---|
| Version | 0.1.0 | 0.1.0 | 0.2.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | MIT | MIT |
| Dependencies | 6 | 9 | 12 |
| Crate Size | 15KB | 20KB | 24KB |
| Features | 0 | 0 | 6 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | 1.75 | — | 1.75 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •tdln-brain leads with a health score of 49/100, but none of the options score above 80.