Best Open-Source Coding Agents: Cline vs ECC
A data-backed comparison of the top two coding agents on HVTracker, built from public trust signals rather than stars alone.
Short answer: Cline currently leads ECC on HVTracker's evidence-weighted trust score: 91.7 vs 90.4/100. This is not a popularity ranking; it combines supply-chain safety, identity/provenance, transparency, maintenance, and adoption signals.
Cline
Autonomous coding agent as an SDK, IDE extension, or CLI assistant.
ECC
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
Cline vs ECC: trust signal breakdown
Both projects are tracked in the Coding Agents category, but they do not expose the same evidence. The table below compares the public signals that feed HVTrust.
| Signal | Cline | ECC |
|---|---|---|
| HVTrust score | 91.7 | 90.4 |
| Safety / Integrity | 19.4/25 | 19.1/25 |
| Identity / Provenance | 18.0/18 | 18.0/18 |
| Transparency | 13.9/17 | 13.4/17 |
| Maintenance | 20.0/20 | 19.9/20 |
| Adoption | 20.0/20 | 18.5/20 |
| OSSF Scorecard | 6.3 | 5.8 |
| Signed commits | 80% | 86% |
| Package provenance | Verified | Verified |
Which one should you evaluate first?
If your priority is the most verifiable trust profile today, start with Cline. It has the stronger current HVTrust score and ranks higher in Coding Agents. If your use case depends on a specific runtime, language, license, or integration model, use the individual profiles rather than the headline score alone.
For production use, the practical checklist is: inspect the security policy, confirm package provenance or release signing where available, review recent maintenance cadence, and compare the exact trust breakdown. HVTracker is meant to reduce the first-pass research burden, not replace your own risk review.