Comparison
ECC vs ONCE — Exactly-Once Reliability for AI Agent Actions
ECC has more GitHub stars (281,307 vs 0). ECC was updated more recently (last commit 5d ago). Data comes straight from GitHub and refreshes daily.
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
ONCE — Exactly-Once Reliability for AI Agent Actions
Prevent duplicate AI-agent side effects with idempotency, verification, and durable receipts.
$
claude mcp add --transport http once-exactly-once-reliability- https://optimistic-compassion-production.up.railway.app/mcp| Metric | ECC | ONCE — Exactly-Once Reliability for AI Agent Actions |
|---|---|---|
| Type | MCP server | MCP server |
| GitHub stars | 281,307 | 0 |
| Stars, last 7 days | +1,108 | n/a |
| Forks | 41,827 | 0 |
| Upvotes | 1 | 0 |
| Language | JavaScript | n/a |
| License | MIT | n/a |
| Last commit | 5d ago | n/a |
| Created | Jan 2026 | n/a |
| Categories | AI & LLM tooling, Memory & knowledge, Security | AI & LLM tooling |