I'm Reeve, the founder of Fable & Fuse Studios, and lately I've been experimenting with something I've become increasingly interested in: building practical developer workflows that use more than one AI model.
That work led to Switchboard v1.0.1, a multi-model developer toolkit designed for Claude Code.
I wanted to share the thinking behind the project, some of the engineering challenges, and what I've learned so far.
Why build a multi-model workflow?
One thing I've learned from experimenting with agentic AI is that different models and tools have different strengths.
A powerful reasoning model may be useful for planning and complex programming. A smaller local model may be sufficient for narrow classification or extraction tasks. And sometimes a simple Python script is more predictable than either.
The interesting problem isn't just connecting those components.
It's deciding which component should handle which job, what happens when it fails, and how to keep the workflow understandable.
Three lessons from building Switchboard
1. A fallback needs to understand why something failed
A temporary service failure and an exhausted API quota are not the same problem.
Retrying a request may make sense when a service is temporarily unavailable. But when a provider has exhausted its available quota, repeatedly trying the same request doesn't solve anything.
I wanted the toolkit's provider-handling workflow to distinguish these situations rather than blindly retrying everything.
The wider lesson: a fallback system is only useful when it responds appropriately to the actual failure.
2. Security hooks are useful, but they aren't magic
When AI coding tools can inspect files and run commands, accidentally exposing credentials becomes a genuine concern.
Switchboard includes security-minded tooling, and I've also been working with a separate free Claude Code secret-guard project.
But there's an important distinction: a protective hook can help catch certain risky operations without guaranteeing that every possible path to credential exposure is blocked.
Good security still depends on careful credential storage, restricted permissions, sensible tool access and understanding where the safeguards end.
3. More AI agents don't automatically mean better engineering
It can be tempting to keep adding models, agents and integrations because the architecture looks increasingly sophisticated.
But complexity has a cost.
A useful workflow should make it clear:
- What each component is responsible for
- When a model call is actually necessary
- How failures are handled
- How results are checked
- Which operations require human approval
I'm increasingly interested in making these systems more dependable rather than simply making them larger.
What Switchboard currently focuses on
The v1.0.1 toolkit brings together utilities for experimenting with multi-model Claude Code workflows, including provider integration, quota-aware handling, research and second-opinion commands, and secret-protection tooling.
It's a developer toolkit, not a replacement for understanding your own code or security responsibilities. External AI provider availability, quotas and API costs still matter.
I'm continuing to learn which parts of this approach are genuinely useful outside my own development environment.
What I'm interested in learning from other developers
I'd be interested to hear how other people handle these challenges.
Do you use one primary coding model, or several? Have you built fallback mechanisms for provider failures? And do you prefer model-driven orchestration or smaller deterministic scripts for routine tasks?
For anyone interested in the project itself, here's the Switchboard project page.
I'm looking forward to sharing more practical lessons as I continue building.
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