Decision Workspace
harness-lsp vs catenary-mcp vs adk-core
Side-by-side comparison of Rust crates
50
harness-lsp
experimentalv0.1.1
LSP tool for AI agent harnesses — language-server-protocol operations (hover, definition, references, symbols) with manifest, lazy-spawn policy, pluggable client adapter
50
catenary-mcp
experimentalv1.6.1
A high-performance multiplexing bridge between MCP (Model Context Protocol) and LSP (Language Server Protocol). Enables LLMs to access IDE-grade code intelligence across multiple languages simultaneously with smart routing and UTF-8 accuracy.
67
adk-core
experimentalv0.9.1
Core traits and types for Rust Agent Development Kit (ADK-Rust) agents, tools, sessions, and events
Core Metrics
| harness-lsp | catenary-mcp | adk-core | |
|---|---|---|---|
| Health Score | 50 | 50 | 67 |
| Total Downloads | 2.6K | 588 | 10.9K |
| 30d Downloads | 2.5K | 0 | 4.3K |
| Dependents | 2 | 0 | 543 |
| Releases | 2 | 34 | 26 |
| Last Updated | 33d ago | 46d ago | 2d ago |
| Age | 1m | 3m | 5m |
Health Breakdown
harness-lsp
Maintenance
12
Quality
12
Community
7
Popularity
4
Documentation
15
catenary-mcp
Maintenance
16
Quality
13
Community
5
Popularity
3
Documentation
13
adk-core
Maintenance
20
Quality
14
Community
13
Popularity
5
Documentation
15
Technical Details
| harness-lsp | catenary-mcp | adk-core | |
|---|---|---|---|
| Version | 0.1.1 | 1.6.1 | 0.9.1 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT | AGPL-3.0-or-later | Apache-2.0 |
| Dependencies | 10 | 34 | 14 |
| Crate Size | 30KB | 466KB | 92KB |
| Features | 0 | 1 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | 1.75 | — | 1.85.0 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •adk-core leads with a health score of 67/100, but none of the options score above 80.
- •adk-core is depended on by 543 crates — strongest ecosystem trust.
- •harness-lsp, adk-core are pre-1.0 — API may change.