AI Plugin IndexEcc Universal vs Harness
Ecc Universal and Harness are both ai and llm tools MCP servers. Harness scores higher (95 vs 94 out of 100). Ecc Universal has more GitHub stars (284k), and Ecc Universal was updated more recently (2 days ago). The table compares them side by side.
| Ecc Universal | Harness | |
|---|---|---|
| Score | 94 / 100 | 95 / 100 |
| What it does | Harness-native agent operating system for Codex, OpenCode, Cursor, Gemini, Claude Code, and terminal workflows - skills, hooks, rules, MCP conventions, and operator control-plane patterns | Start Claude Code and Codex agents the person can watch, wait for them and read their answers. |
| Publisher | Verified: npm:ecc-universal | Verified: harness.autonomous.ai |
| Grades | Maintenance A, Licence A, Quality A | Maintenance A, Licence A, Quality A |
| npm downloads a week | 9,377 | 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 | 284,442 | 1,320 |
| Last commit | 20 Oct 2026 | 19 Oct 2026 |
| Licence | MIT | MIT |
| Listed since | 20 Oct 2026 | 19 Oct 2026 |
| Install Ecc Universal | Install Harness |
Questions
Is Ecc Universal or Harness more popular?
Ecc Universal has more GitHub stars: 284,442.
Can I use Ecc Universal 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.