Add config/flag/env option to disable claude code compatibility loading

[locnbk2002]

Describe the feature or problem you'd like to solve

I use both Copilot CLI and Claude Code simultaneously, and Copilot CLI's automatic loading from .claude/ directories (agents, skills) interferes with my intentionally separate setups for each tool.

Proposed solution

Reference to loading order of Copilot CLI, the CLI loading agents and skills from .claude directory. Add a opt-out config to config.json :

{
  "claude": {
      "agents": false,
      "skills": false,
      "commands": false
   }  
}

Example prompts or workflows

No response

Additional context

• Copilot CLI plugin loading order
• Opencode env var to disable Claude Code skills/commands