Agent Plugins Schema validator CLI

[rchaganti]

I wrote a simple Go CLI to validate plugin manifests and MCP configurations against the published schema.

Key Features

• 100% Schema-Driven Validation: validates both Plugin Manifests (plugin.json) and MCP Configurations (mcp.json). Automatically detects schema type via $schema URL or filename.
• Embedded & Cached Schema Lifecycle: embedded canonical v1.0.0 schemas (plugin.schema.json and mcp.schema.json).
• Shell Autocompletion: Built-in tab completion for Bash, Zsh, Fish, and PowerShell with .json file completion for validate and --schema.
• Spec-Compliant Warning Handling: Unrecognized top-level fields in plugin.json are classified as Warnings and ignored per Spec §5.2 without failing validation.
• Agent & CI/CD Ready

Please give it a try and let me know what can make this better and more useful.