feat: add multiple edgecase for mcp spec

[Kinfe123]

Summary by cubic

Adds robust MCP endpoint discovery with origin, root-domain, and mcp. subdomain fallbacks (handles multi-part public suffixes). Updates docs doctor and the score page to pass when any MCP endpoint works and show clearer, targeted probe details.

• New Features

  • Added buildDocsMcpEndpointCandidates() with origin, root-domain, and mcp. subdomain fallbacks; supports domains like example.co.uk and example.co.kr.
  • Exported buildDocsMcpEndpointCandidates, DocsMcpEndpointCandidate, and DocsMcpEndpointCandidateOptions.
  • docs doctor --agent now probes declared mcp.publicEndpoints (or mcp.endpoints) from discovery or defaults, plus mcp.<domain>/mcp and mcp.<domain>/.
  • Docs updated to list the new MCP probe targets; tests added for candidate generation.

• Refactors

  • Hosted MCP check now passes if any candidate succeeds and shows only successful probe details; otherwise shows all with a targeted action listing candidate labels.
  • Agent score page uses buildDocsMcpEndpointCandidates() and the same pass-if-any logic for MCP readiness.
  • OpenAPI route display on the score page respects discovery.openapi.enabled and capabilities; only shows a route when enabled or required.

^{Written for commit 68adb93. Summary will update on new commits. Review in cubic}

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Project	Deployment	Actions	Updated (UTC)
docs-website	Ready	Preview, Comment	May 15, 2026 3:15pm

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commit: 68adb93

[cubic-dev-ai]

2 issues found across 8 files

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="skills/farming-labs/cli/SKILL.md">

<violation number="1" location="skills/farming-labs/cli/SKILL.md:452">
P3: Use absolute URLs (including protocol) for the MCP subdomain probe examples. The current values omit `https://`, so they are not valid URLs and do not match the actual generated probe candidates.</violation>
</file>

<file name="packages/docs/src/agent.ts">

<violation number="1" location="packages/docs/src/agent.ts:994">
P2: Registrable-domain fallback is incorrect for unlisted multi-part public suffixes, producing wrong MCP probe hostnames (for example `co.kr` instead of `example.co.kr`).</violation>
</file>

_{Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review.
Re-trigger cubic}