Head to head, rubric v2.3.0
Ubs is 2 points more agent-ready than Zkb (68/100 against 66/100). Both scores come from public HTTP responses only.
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Share of each check group passed
Machine access
Zkb 100%
Ubs 100%
Content legibility
Zkb 92%
Ubs 92%
Discovery surface
Zkb 25%
Ubs 45%
Identity & policy
Zkb 67%
Ubs 25%
Agent-facing performance
Zkb 63%
Ubs 100%
Agent protocols
Zkb 0%
Ubs 0%
Catalogue access
Zkb 100%
Ubs 0%
Product data legibility
Zkb 0%
Ubs 0%
Agent-commerce protocols
Zkb 0%
Ubs 0%
Checkout traversability
Zkb 60%
Ubs 0%
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