AI Plugin IndexString Utility Belt vs Harness
String Utility Belt and Harness are both ai and llm tools MCP servers. Harness scores higher (95 vs 87 out of 100). Harness has more GitHub stars (1.3k), and Harness was updated more recently (3 days ago). The table compares them side by side.
| String Utility Belt | Harness | |
|---|---|---|
| Score | 87 / 100 | 95 / 100 |
| What it does | MCP server exposing String Utility Belt's utilities and pipelines as tools for AI agents. | Start Claude Code and Codex agents the person can watch, wait for them and read their answers. |
| Publisher | Verified: stringutilitybelt.com | Verified: harness.autonomous.ai |
| Grades | Maintenance A, Licence A, Quality C | Maintenance A, Licence A, Quality A |
| npm downloads a week | 831 | Not on npm |
| Runs | Local | Local |
| Works with | Claude Code, Claude Desktop, Cursor, Codex, Gemini CLI, VS Code, Windsurf | Claude Code, Claude Desktop, Cursor, Codex, Gemini CLI, VS Code, Windsurf |
| GitHub stars | 4 | 1,320 |
| Last commit | 18 Oct 2026 | 19 Oct 2026 |
| Licence | MIT | MIT |
| Listed since | 19 Oct 2026 | 19 Oct 2026 |
| Install String Utility Belt | Install Harness |
Questions
Is String Utility Belt or Harness more popular?
Harness has more GitHub stars: 1,320.
Can I use String Utility Belt and Harness together?
Yes. AI assistants can load several MCP servers at once. Install both and the assistant picks the right one for each task.