DeepSeek subagents in Claude Code, Fable/Opus for the main agent using your Claude Max usage

You can run Claude Code fully on DeepSeek or fully on Anthropic (through your CC Max subscription), nothing in between. This patches the local bundle so subagents can route to DeepSeek while the main agent stays on Fable/Opus, per request. That's the main use case this enables, and it isn't possible with the current Claude Code integration guide by DeepSeek . The other workaround to add DeepSeek, a router in front of the API, is what third-party harnesses use and what Anthropic doesn't like, so I'd say (IMO) it's far riskier. Use at your own risk, though the risk should be low. I've also got some other task-list QoL in there, pin, detach, and retention, it's in my-cc-config (separate repo) if you want that. Full writeup with install and how it works: musaab.io/posts/2026/deepseek-subagents-claude-code