Plugin marketplace schema validation errors - 8 plugins failing validation

Description

The /plugin command shows marketplace schema validation errors for 8 plugins in the official marketplace.

Error Message

Failed to load all marketplaces. Errors: claude-plugins-official: Invalid schema: 
plugins.56.source: Invalid input, plugins.63.source: Invalid input, 
plugins.67.source: Invalid input, plugins.71.source: Invalid input, 
plugins.72.source: Invalid input, plugins.73.source: Invalid input, 
plugins.74.source: Invalid input, plugins.75.source: Invalid input

Root Cause

The \marketplace.json\ file contains inconsistent URL formats in the \source.url\ field:

• Plugin #56 (Semgrep): Uses full URL \https://github.com/semgrep/mcp-marketplace.git\ ✓
• Plugin #63 (Railway): Uses shorthand \railwayapp/railway-skills\ ✗
• Plugin #67 (LegalZoom): Uses shorthand \legalzoom/claude-plugins\ ✗
• Plugins #71-74 (AWS): Use full URLs ✓
• Plugin #75 (Zapier): Uses shorthand \zapier/zapier-mcp\ ✗

Additionally, all affected plugins have \"id": null\.

Environment

• Claude Code Version: 2.1.30
• Platform: macOS (Darwin 25.4.0)
• Marketplace file: \~/.claude/plugins/marketplaces/claude-plugins-official/.claude-plugin/marketplace.json\
• Last marketplace update: 2026-03-15T04:48:30.358Z

Expected Behavior

The marketplace should use consistent URL formats that pass schema validation.

Actual Behavior

Schema validation fails for 8 plugins due to mixed URL format (full URLs vs GitHub shorthand).