Claude Fable 5 Orchestrates Grok 4.5 via Claude Code Plugin

Here’s a setup — maybe someone will like it: Claude Fable 5 orchestrating Grok 4.5 ️

All you need is a free plugin for Claude Code that makes Grok the default executor. Fable writes specs and reviews every diff, while Grok 4.5 handles writing the code via the Grok CLI.

- Grok takes on the main coding workload, and Fable is responsible for architectural decisions and quality control.
- Every diff automatically goes through cross-checking by different models — at no extra cost.
- If the specs are independent of each other, they’re executed in parallel by separate agents.

The author tested this approach for a few days, and the most impressive part was that Fable fundamentally doesn’t write code. It produces specs, sends them to the executor, evaluates the result, and that’s where its job ends.

Setup:

1. claude plugin marketplace add DannyMac180/fable-advisor && claude plugin install fable-advisor
2. Install Grok CLI from http://x.ai/cli, then run grok login.
3. Run the command /model fable.

The project has DannyMac180/fable-advisorgithub.com/DannyMac180/fable-advisor source code, so you can inspect the agent files and configure request routing the way you need.