Melodic Plugins vs Universal Agent Plugins
Bottom line
Melodic is a marketplace you browse inside Claude Code; Universal Agent Plugins is a CLI that installs and repairs plugins across hosts.
Who it's for — Pick Melodic if you stay in Claude Code and want /plugin to do the work, with per-plugin versioning you can pin. Pick Universal Agent Plugins if you carry the same set across Codex, Claude Code, Cursor, Gemini CLI, Copilot and OpenCode, and want a manifest and lockfile to reproduce it.
Who it's NOT for — Skip Melodic if you work across several hosts. Skip Universal Agent Plugins if Claude Code's own marketplace already covers you.
One verifiable fact — 29 stars vs 15, both checked Nov 6, 2026 — about 1.9x.
Try / Skip — Try Melodic for a Claude-only stack; try Universal Agent Plugins for a multi-host stack. Skip both if you install nothing.
 Melodic Plugins |
 Universal Agent Plugins |
|
|---|---|---|
| Stars | 30 checked Nov 13, 2026 | 16 checked Nov 13, 2026 |
| Source | github | github |
| First seen | Oct 10, 2026 | Oct 10, 2026 |
| Last seen | Nov 14, 2026 | Oct 10, 2026 |
| Licence | not held | not held |
| Last release | not held | not held |
Related
Sources
star counts as of Nov 6, 2026; Universal Agent Plugins README captured Oct 24, 2026; Melodic capture date not held.