Commit bd04149 introduced a new git-subdir source type for the Semgrep plugin entry (plugin index 56):
{
"name": "semgrep",
"source": {
"source": "git-subdir",
"url": "https://github.com/semgrep/mcp-marketplace.git",
"path": "plugin"
}
}This is a breaking schema change. Prior to this commit, all plugin source fields were either a relative path string (e.g. "./plugins/semgrep") or an object with "source": "url". The git-subdir discriminator is not recognized by some existing Claude Code clients, causing the entire marketplace.json manifest to fail validation.
Impact:
- Claude Code v2.1.66 fails to add the official marketplace:
Failed to parse marketplace file at .../.claude-plugin/marketplace.json:
Invalid schema: plugins.56.source: Invalid input
- Any third-party client that strictly validates the marketplace manifest against the documented schema is also broken.
- This affects fresh installs as well as marketplace updates for existing users.
Reproduction:
- Open Claude Code v2.1.66 (or any version <v2.1.69)
- Run
/plugin and add https://github.com/anthropics/claude-plugins-official
- Observe validation failure.
Commit bd04149 introduced a new git-subdir source type for the Semgrep plugin entry (plugin index 56):
{ "name": "semgrep", "source": { "source": "git-subdir", "url": "https://github.com/semgrep/mcp-marketplace.git", "path": "plugin" } }This is a breaking schema change. Prior to this commit, all plugin source fields were either a relative path string (e.g. "./plugins/semgrep") or an object with "source": "url". The git-subdir discriminator is not recognized by some existing Claude Code clients, causing the entire marketplace.json manifest to fail validation.
Impact:
Reproduction:
/pluginand addhttps://github.com/anthropics/claude-plugins-official