Decision Workspace
ckg vs mempal vs rag-rat-mcp
Side-by-side comparison of Rust crates
40
ckg
experimentalv0.1.5
Local-first Code Knowledge Graph and MCP retrieval engine for AI coding agents
54
mempal
experimentalv0.9.0
Project memory for coding agents. Single binary, hybrid search, knowledge graph.
53
rag-rat-mcp
experimentalv0.17.0
MCP server tools for rag-rat repository search, symbol graph traversal, rationale lookup, and source-bound memories.
Core Metrics
| ckg | mempal | rag-rat-mcp | |
|---|---|---|---|
| Health Score | 40 | 54 | 53 |
| Total Downloads | 17 | 407 | 951 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 0 | 19 |
| Releases | 1 | 14 | 19 |
| Last Updated | 8d ago | 4d ago | 2d ago |
| Age | 8d | 3m | 1m |
Health Breakdown
ckg
Maintenance
12
Quality
11
Community
6
Popularity
1
Documentation
10
mempal
Maintenance
19
Quality
11
Community
6
Popularity
3
Documentation
15
rag-rat-mcp
Maintenance
14
Quality
13
Community
10
Popularity
4
Documentation
12
Technical Details
| ckg | mempal | rag-rat-mcp | |
|---|---|---|---|
| Version | 0.1.5 | 0.9.0 | 0.17.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT | MIT |
| Dependencies | 16 | 30 | 11 |
| Crate Size | 70KB | 294KB | 105KB |
| Features | 0 | 4 | 3 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | — | 1.85 | 1.95 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •mempal leads with a health score of 54/100, but none of the options score above 80.
- •rag-rat-mcp has the most downloads (951), suggesting wider adoption.