@deanwperkins: Anthropic just revealed a trick to improve how Claude Opus 5.5 works. The idea is that Opus does the work while Fable 5…
Summary
Anthropic reportedly introduced an experimental '/advisor fable' command in Claude Code that lets Claude Opus consult Fable 5.1 as a second opinion, sharing full session context for planning, error diagnosis, and task validation before completion.
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Anthropic just revealed a trick to improve how Claude Opus 5.5 works.
The idea is that Opus does the work while Fable 5.1 acts as a second opinion.
All you have to do is open Claude Code and run:
/advisor fable
When Opus consults Fable, it gets the full context of the session, including the tools used and their results.
It can be especially useful:
→ Before creating a large plan → When the same error keeps happening → Before marking a task as finished
This gives you a second review without having to copy context between conversations.
The feature is still experimental, requires access to Fable, and uses additional tokens.
🔖 Save this for your next session.
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