check 2

Verification toolkit for DeepSeek Harness agents: evidence-based claim checking against workspace files with line citations, config validation (JSON/YAML), HTTP URL status checks, npm package checks, GitHub repo submission-readiness checks, and batch veri

Contract check for DeepSeek Harness plugins: statically verifies that registered tools' output.render() returns ContentBlock[], and warns when a session event type falls outside the kernel vocabulary. Warn-only. 契约体检插件（不检测恶意）。