Decision Workspace
nucleus-flow-projection vs nucleus-substrate-core vs nucleus-identity-projection
Side-by-side comparison of Rust crates
Flow projection lifter for the Nucleus substrate. Lifts a Denning-lattice FlowTracker snapshot into a Projection::Flow body that the substrate Receipt envelope can carry. Verifier checks well-formedness and exposes the session integrity / confidentiality / authority ceilings to downstream consumers.
Categorical core of the Nucleus substrate: Session (the agent action), Projection (the verifiable record functor — Identity, Capability, Flow, Economic, …), and Receipt (the Ed25519-signed colimit). Lightweight, no runtime deps. See docs/architecture/substrate.md.
Identity projection lifter for the Nucleus substrate. Lifts a JWT-SVID (SPIFFE 2.0) into a Projection::Identity body that the substrate Receipt envelope can carry. Verifier path validates the SVID against a published JWKS — fully offline once the JWKS is fetched.
Core Metrics
| nucleus-flow-projection | nucleus-substrate-core | nucleus-identity-projection | |
|---|---|---|---|
| Health Score | 48 | 49 | 48 |
| Total Downloads | 345 | 382 | 345 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 1 | 4 | 1 |
| Releases | 1 | 1 | 1 |
| Last Updated | 44d ago | 44d ago | 44d ago |
| Age | 1m | 1m | 1m |
Health Breakdown
Technical Details
| nucleus-flow-projection | nucleus-substrate-core | nucleus-identity-projection | |
|---|---|---|---|
| Version | 0.1.0 | 0.1.0 | 0.1.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 4 | 7 | 7 |
| Crate Size | 12KB | 16KB | 17KB |
| Features | 0 | 0 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | 1.93 | 1.93 | 1.93 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •nucleus-substrate-core leads with a health score of 49/100, but none of the options score above 80.