[FEATURE]: Support loading Claude Code plugins from .claude/ directory #8158

Summary

OpenCode already supports loading Claude Code configurations:

• ✅ ~/.claude/CLAUDE.md - instruction files
• ✅ .claude/skills/*/SKILL.md - skill definitions

Feature Request: Extend this compatibility to also support loading Claude Code plugins from .claude/ directories.

Current Behavior

OpenCode's native plugin system uses TypeScript/JavaScript modules:

• .opencode/plugin/*.ts or .opencode/plugin/*.js
• ~/.config/opencode/plugin/
• npm packages in opencode.json

Claude Code plugins are not loaded from:

• .claude/plugins/ (project-level)
• ~/.claude/plugins/ (global)

Proposed Behavior

Add support for discovering and loading plugins from Claude Code's plugin locations:

.claude/plugins/*.ts       # Project-level
~/.claude/plugins/*.ts     # Global

This would follow the same pattern as the existing .claude/skills/ compatibility.

Use Case

1. Ecosystem Leverage: Claude Code has a rich plugin ecosystem. Users could immediately benefit from existing Claude Code plugins without rewriting them.

2. Migration Path: Users transitioning from Claude Code to OpenCode wouldn't need to reorganize their plugin directories.

3. Interoperability: Users running both tools could share plugins between them, reducing maintenance overhead.

4. Consistency: OpenCode already respects .claude/CLAUDE.md and .claude/skills/. Extending this to plugins creates a more complete compatibility layer.

Implementation Considerations

1. Plugin Format Compatibility: If Claude Code plugins use a different format/API, a compatibility layer or adapter pattern may be needed.

2. Flag Control: Similar to OPENCODE_DISABLE_CLAUDE_CODE_SKILLS, add OPENCODE_DISABLE_CLAUDE_CODE_PLUGINS for users who want to opt out.

3. Load Order: Define clear precedence (e.g., OpenCode native plugins override Claude Code plugins with same name).

Related Issues

• [FEATURE]: Add .claude/commands/ compatibility (like .claude/skills/) #6985 - Add .claude/commands/ compatibility
• Does opencode actually support finding skills at .claude/skills? #6266 - .claude/skills/ support discussion
• [FEATURE]: Easily import settings/agents/MCP servers from other tools #6207 - Import settings from other tools
• opencode doesn't respect CLAUDE_CONFIG_DIR environment variable #6551 - CLAUDE_CONFIG_DIR environment variable

Environment

• OpenCode Version: Latest (1.1.x)
• OS: All platforms