AI Plugin IndexX Agent Tools vs Harness
X Agent Tools and Harness are both ai and llm tools MCP servers. Harness scores higher (95 vs 94 out of 100). X Agent Tools has more GitHub stars (5.9k), and X Agent Tools was updated more recently (3 days ago). The table compares them side by side.
| X Agent Tools | Harness | |
|---|---|---|
| Score | 94 / 100 | 95 / 100 |
| What it does | Shared tooling behind MUI's agent integrations (MCP server, CLI, ACP). | Start Claude Code and Codex agents the person can watch, wait for them and read their answers. |
| Publisher | Verified: npm:@mui | Verified: harness.autonomous.ai |
| Grades | Maintenance A, Licence A, Quality A | Maintenance A, Licence A, Quality A |
| npm downloads a week | 3,750 | 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 | 5,865 | 1,320 |
| Last commit | 20 Oct 2026 | 19 Oct 2026 |
| Licence | MIT | MIT |
| Listed since | 20 Oct 2026 | 19 Oct 2026 |
| Install X Agent Tools | Install Harness |
Questions
Is X Agent Tools or Harness more popular?
X Agent Tools has more GitHub stars: 5,865.
Can I use X Agent Tools 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.