I built a small CLI that compares an OpenAPI spec against its SDK surface.
Ran it against a few real-world APIs.
Findings:
• ~63% direct operation coverage
• 23 high-confidence missing endpoints
• 64 unsupported resource groups
• 14 params handled dynamically (not explicit in SDK)
Most interesting part: reducing false positives was harder than detection.
Would love feedback from API / SDK maintainers.