A-TIER technique
Fable orchestrates, Opus executes — cutting frontier-model token spend
100k ft — What is this?
Fable orchestrates, Opus executes — cutting frontier-model token spend
50k ft — Why care?
Brain-dump your task list to Fable, have it write specs and spawn cheaper Opus subagents (in parallel worktrees) to execute, then Fable reviews and sends fixes back in a loop until it's good enough. You get top-model judgment without burning usage limits on implementation.
10k ft — Key takeaways
• Delegate implementation to cheaper subagents with written specs
• Loop review and fix until the orchestrator approves
• Use the expensive model for planning and review only
5k ft — Tools & techniques
Claude Code
AI agents, orchestrator-worker pattern, review loop, subagent delegation
1k ft — Deep-dive / try it
We’re going to be in this loop of wanting to use the newest most expensive model without lighting dollars on fire for the rest of time so might as well get good at it
Transcript excerpt
I don't want to use Fable, I'm gonna hit my usage limits. Skill issue. What you're gonna do, you're gonna drop in a list of everything that you need to get done, just literally brain dump it in there. Then you're going to tell Fable to create a sub-agent that is an Opus profile, that is going to execute everything. So what we're gonna do now is Fable is going to be the orchestrator. Fable's gonna use the task, create the specs to hand it off to Opus. Opus is way cheaper than gonna go and take off those tasks. Now Opus is gonna go run and cook up these tasks and probably have like four or five other team members helping out other tasks in parallel, work trees, whatever, all that jazz. Then when they're done with the task, they're gonna go back to Fable and say, hey boss, how does this look? And then Fable's gonna go, hmm, I am much smarter than you, so I don't think you did better. Fix x, y, and z. And then the workers are gonna go back and fix those things and they're gonna come back to Fable and it's gonna keep doing that loop a few times until it's good enough. Then Fable will come back to you and say, hey, human, this is good. Anyways, if you want me to sign this whole guide to, just comment the word token.