Decision Workspace
tool-output-truncate vs prism-mcp-rs vs vex-core
Side-by-side comparison of Rust crates
49
tool-output-truncate
experimentalv0.1.0
Truncate tool output (file reads, command runs, search hits) before adding to LLM message history. Char-aware head/middle/tail strategies with a configurable elision marker. Zero deps.
60
prism-mcp-rs
growingv2.0.1
Production-grade Rust SDK for Model Context Protocol (MCP) - Build AI agents, LLM integrations, and assistant tools with enterprise features
58
vex-core
experimentalv1.7.0
Core types for VEX: Agent, ContextPacket, MerkleNode, Evolution
Core Metrics
| tool-output-truncate | prism-mcp-rs | vex-core | |
|---|---|---|---|
| Health Score | 49 | 60 | 58 |
| Total Downloads | 14 | 3.7K | 1.3K |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 0 | 174 |
| Releases | 1 | 13 | 19 |
| Last Updated | 9d ago | 10d ago | 58d ago |
| Age | 9d | 9m | 5m |
Health Breakdown
tool-output-truncate
Maintenance
12
Quality
15
Community
6
Popularity
1
Documentation
15
prism-mcp-rs
Maintenance
18
Quality
17
Community
6
Popularity
4
Documentation
15
vex-core
Maintenance
16
Quality
16
Community
12
Popularity
4
Documentation
10
Technical Details
| tool-output-truncate | prism-mcp-rs | vex-core | |
|---|---|---|---|
| Version | 0.1.0 | 2.0.1 | 1.7.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | MIT OR Apache-2.0 | MIT | Apache-2.0 |
| Dependencies | 0 | 63 | 24 |
| Crate Size | 10KB | 434KB | 55KB |
| Features | 0 | 16 | 3 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | 1.74 | 1.85 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •prism-mcp-rs leads with a health score of 60/100, but none of the options score above 80.
- •vex-core is depended on by 174 crates — strongest ecosystem trust.
- •tool-output-truncate is pre-1.0 — API may change.