agent-device vs Browser Harness
An independent, evidence-based trust comparison of agent-device and Browser Harness, two Browser & Computer Use projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.
Browser Harness leads on trust — 90.8/100 (Grade A) vs 79.8/100 (Grade B), a 11.0-point gap. Full breakdown below.
| Signal | agent-devicecallstack/agent-device | Browser Harnessbrowser-use/browser-harness |
|---|---|---|
| HVTrust score | 79.8 | 90.8 |
| Evidence grade | B | A |
| Coverage grade | B | B |
| Overall rank | #136 | #9 |
| Rank in Browser & Computer Use | #8 | #1 |
| GitHub stars | 4.6k | 17.5k |
| Last updated | today | 1d ago |
| Build provenance | No | Yes |
| OSSF Scorecard | 6.7 / 10 | 6.2 / 10 |
| License | MIT | MIT |
| Downloads | 108k/wk | 1.2M/wk |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 13.3 | 17.3 |
| Identity & provenance / 18 | 10.8 | 18.0 |
| Transparency / 17 | 14.2 | 13.8 |
| Maintenance / 20 | 20.0 | 19.9 |
| Adoption / 20 | 15.5 | 18.3 |
| Runtime capability surface (full matrix) | ||
| MCP server | Implemented | Implemented |
| External providers | — | 1 — Anthropic |
| Requires API keys | No | No |
| Plugin surface | — | plugins |
| Provenance drift | Match | Match |
Open in the live compare tool →
agent-device profile
Browser Harness profile
More Browser & Computer Use →
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 v4.3 →