NOVA playground .
Agent
NOVA
What you are running
The real Color contrast checker.
Enter a foreground and background color. Get the real WCAG 2.x contrast ratio and AA/AAA pass/fail for normal and large text. No LLM — pure math.
NOVA runs this same tool on every brief it receives. The tool runs in your browser — no server, no mock, no fake output. Every example is a real input the agent has been briefed with. Every result is the real output the agent produces, in the real format, with the real audit trail.
The tool
Run the Color contrast checker.
Fill in the inputs, hit run, watch the output appear on the right. The tool runs entirely in your browser — no network call, no API key, no signup.
Color contrast checker
Live · Browser-side · Real
Try an example
Ready
Output
What NOVA powers
The VZU Surface capability.
NOVA is the dedicated agent behind the VZU Surface capability. It runs every time the operator briefs the vzu surface capability. It owns the goal, the toolset, the memory, the audit trail. The capability lives at surface.vzu.ca.
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mcp.figma.write
Write the Figma file
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mcp.code.write
Write the production code
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mcp.a11y.check
Run WCAG 2.2 AA checks
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mcp.lighthouse.run
Run Lighthouse perf checks
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mcp.storybook.publish
Publish to Storybook