Codex vs ECC
Both are Grade A and 1.1 points apart, so choose on what you weigh most. Codex leads on adoption; ECC leads on supply-chain integrity.
Lightweight coding agent that runs in your terminal
Choose Codex if adoption matters most.
- +1.1Adoption: 28.3M weekly downloads against 21.7k
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
Choose ECC if supply-chain integrity matters most.
- +4.7Safety / Integrity: 99% of recent commits signed, against 0%
Where they differ
1 dimension identical: Identity 18.0 · Full evidence table
An independent, evidence-based trust comparison of Codex and ECC, two Coding Agents projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.
Full evidence
| Signal | Codexopenai/codex | ECCaffaan-m/ECC |
|---|---|---|
| HVTrust score | 89.9 | 91.0 |
| Evidence grade | A | A |
| Coverage grade | B | B |
| Overall rank | #28 | #18 |
| Rank in Coding Agents | #3 | #2 |
| GitHub stars | 132.9k | 295.7k |
| Last updated | today | 1d ago |
| Build provenance | Yes | Yes |
| OSSF Scorecard | 5.9 / 10 | 5.7 / 10 |
| License | Apache-2.0 | MIT |
| Downloads | 28.3M/wk | 22k/wk |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 14.9 | 19.6 |
| Identity & provenance / 18 | 18.0 | 18.0 |
| Transparency / 17 | 13.5 | 13.3 |
| Maintenance / 20 | 20.0 | 19.9 |
| Adoption / 20 | 20.0 | 18.9 |
| Runtime capability surface (full matrix) | ||
| MCP server | Implemented | Implemented |
| External providers | 1 — OpenAI | 2 — Anthropic, OpenAI |
| Requires API keys | No | Yes |
| Plugin surface | extensions | plugins |
| Provenance drift | Match | Match |
How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption, scaled by an evidence-confidence factor. Grade bands: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Signals refresh daily. Full methodology v4.4 →