> Also Opencode makes it all easily swappable

It's all easily swappable without OpenCode. Just symlink CLAUDE.md -> AGENTS.md and run `codex` instead of `claude`.

> they are working hard on making it impossible for other models to support their every increasing agent feature set (skills, teleport and remote sessions, LSP, Chrome integration, etc).

Every feature you listed has an open-source MCP server implementation, which means every agent that supports MCP already has all those features. MCP is so epic because it has already nailed the commodification coffin firmly shut. Besides, Anthropic has way less funding than OAI or Google. They wouldn't win the moat-building race even if there were one.

That said, the conventional wisdom is that lowering switching costs benefits the underdogs, because the incumbents have more market share to lose.