Comparison
Claude Mermaid vs ECC
ECC has more GitHub stars (281,307 vs 217). ECC was updated more recently (last commit 3d ago). Data comes straight from GitHub and refreshes daily.
Claude Mermaid
MCP Server to previewing mermaid diagrams with live reload
$
claude mcp add --scope user mermaid claude-mermaid
ECC
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
$
/plugin marketplace add https://github.com/affaan-m/ECC| Metric | Claude Mermaid | ECC |
|---|---|---|
| Type | MCP server | MCP server |
| GitHub stars | 217 | 281,307 |
| Stars, last 7 days | n/a | +1,108 |
| Forks | 24 | 41,827 |
| Upvotes | 0 | 1 |
| Language | TypeScript | JavaScript |
| License | MIT | MIT |
| Last commit | 5d ago | 3d ago |
| Created | Sep 2025 | Jan 2026 |
| Categories | n/a | AI & LLM tooling, Memory & knowledge, Security |