What are design handoff specs?

Design handoff specs are the documented rules and behaviours engineering needs to build a design accurately — layout, states, tokens, motion, and voice. Koryvant generates them stack-agnostically.

Why is a stack-agnostic handoff better?

Because it lets engineering build on any framework it prefers, rather than starting from a decision baked into generated code. The design is decided; the stack stays open.

Does Koryvant lock me into a framework at handoff?

No. Koryvant’s handoff specs are stack-agnostic by design, so the same prototype can be built in any framework your team chooses.

Guide · Handoff

What is a design handoff, and why does it matter?

A design handoff is the point where a finished design becomes the input engineering builds from. The quality of the handoff decides whether engineering builds the intended product or reinterprets it — which is where drift between design and shipped product usually starts.

Last updated August 19, 2026

What is in a good design handoff?

A good design handoff carries the complete screen inventory, every state per screen, both themes, and the rules behind them: spacing, type, colour tokens, motion, and voice. It answers engineering’s questions before they are asked.

Crucially, a good handoff is unambiguous about behaviour, not just appearance. What happens on error, what the empty state says, how a transition feels — these are handoff content, not afterthoughts.

Why stack-agnostic specs matter

A handoff tied to one framework forces engineering to either adopt that framework or translate everything by hand. Stack-agnostic specs describe the design in terms any team can implement, on any stack it prefers.

This keeps the decision about how to build separate from the decision about what to build. Design settles the what; engineering keeps the freedom to choose the how.

How Koryvant handles handoff

Koryvant produces stack-agnostic handoff specs alongside the clickable prototype: voice, motion, and roadmap notes that hand off cleanly to any stack, so engineering starts from a decided design instead of designing while it builds.

The prototype plus its specs is a blueprint, not a running app. Koryvant is the design-complete blueprint layer, not a full-app builder. There is no backend, no database, and no running full-stack app.

Try it on your own idea

Describe your product to Koryvant and get a complete clickable prototype — every screen, every state, both themes — free to generate and preview.

Start free How it works

Questions

What are design handoff specs?: Design handoff specs are the documented rules and behaviours engineering needs to build a design accurately — layout, states, tokens, motion, and voice. Koryvant generates them stack-agnostically.
Why is a stack-agnostic handoff better?: Because it lets engineering build on any framework it prefers, rather than starting from a decision baked into generated code. The design is decided; the stack stays open.
Does Koryvant lock me into a framework at handoff?: No. Koryvant’s handoff specs are stack-agnostic by design, so the same prototype can be built in any framework your team chooses.

Keep reading: High-fidelity vs low-fidelity prototypes or What is a design system?. Browse all guides, or see Koryvant by product type.