01Build
Sketch the routing graph the way it actually thinks.
Drag agents, define their scope in plain English, see overlaps before they bite. The flow view doubles as your spec.
Cobble · Now in public beta
Stop guessingwhere your agentwent wrong.
Cobble finds routing failures in your agentic architecture before your users do. Map your architecture, evaluate collision risk, and get a actionable diagnosis of exactly why a message went to the wrong agent.
01 · The problem
Most agent failuresaren't model failures.
They're routing failures. The model picks the wrong agent, the wrong agent does its best, and the user leaves. By the time you see it in logs, the customer is gone.
Replay continues as you scroll
Illustrative example · not a real customer
User
My package arrived smashed. The watch inside is cracked.
02 · How it works
One workspace,four moves.
Cobble is built around the four things every agent team does over and over. They live in one place because they only make sense together.
02Evaluate
Find collisions before users do.
Cobble scores every agent pair, generates synthetic boundary cases, and flags the language that's going to confuse the router.
72 / 100
Needs attention
Returns ↔ DamageHIGH
Account ↔ BillingMED
03Test
Run real conversations against every architecture change.
Build reusable test sets from your transcripts. Every diff in the routing graph runs against them automatically.
Shop support · v348 cases
"Where's my order?"pass
"Cracked watch"pass
"Cancel and refund"fail
"Reset my password"pass
"Speak to a human"pass
04Diagnose
Trace any single failure to its root cause.
See which signals the router weighted, why it picked wrong, and what one-line description fix would have saved it.
case · 042 · fail
"My package arrived smashed."
Returns→Damage
Router weighted "package" 0.71 over "smashed" 0.42. Damage agent's description never mentions packaging.
03 · Early access
Build better agents.Join Cobble early.
Cobble is currently onboarding individual builders and a small number of pilot teams. Get hands-on access, work directly with the founder and help shape the product.
Founding Member
Build bettermulti-agent systems from day one.
Join Cobble's founding members and help shape the platform while receiving lifetime founding pricing, early access to new capabilities and direct access to the founder.
Included
- Unlimited optimisation runs
- Evaluation suite
- Reliability insights
- Routing improvement suggestions
- Direct founder Slack
- Lifetime founding pricing
Only 50 founding memberships available.
Pilot Partner
Improve productionAI systems with Cobble.
Work directly with the Cobble team to improve the reliability, quality and performance of your AI agent systems while helping shape the future of the platform.
Included
- Guided onboarding
- Evaluation suite
- Reliability insights
- Routing improvement recommendations
- Direct founder support
- Priority roadmap influence
Currently onboarding a small number of pilot partners.
Early users receive direct founder support and influence over the Cobble roadmap.
04 · Partnerships
Building withAgents?
We work closely with agent platforms, evaluation tools, and teams with hard routing problems. Tell us what you're working on - we read every message.
Founding MemberBecome a founding member and help shape the future of AI agent optimisation.
IntegrationsIf your product produces traces or hosts agents, let's wire it up.
PilotWork with us to improve the reliability, routing and performance of your AI systems.