Threadplane: Angular agent UI framework graded A for supply-chain trust

Threadplane, an Angular agent UI framework, received an 82.8/100 Grade A from HVTracker, an independent trust tracker for AI agent software. Ranked #7 out of 75 agent frameworks, it is the only Angular framework on the list. The score is based solely on public signals like GitHub, npm, PyPI, and OpenSSF Scorecard, without self-reporting. The article highlights the importance of supply-chain transparency, especially for agent frameworks that have larger blast radii. Threadplane’s trust signals include OSSF Scorecard 7.7/10, MIT license, 82% signed commits, verifiable provenance, and active maintenance. The framework is mostly MIT open source, with only the @threadplane/chat library under a commercial license.