Hand over the reasoning,
not just the file.

Because Figma answers what and not why, and the questions that stall a sprint are all why questions. An engineer with a perfect file still does not know whether that 18 pixel gap is a deliberate rhythm or an artefact of how the frame was drawn, what should render while the data loads, what happens when the product name runs to sixty characters, or whether this card is intentionally different from the visually similar one two screens back. None of that is expressible in a file that shows one state of one layout. It is not a shortcoming of Figma, which is excellent at its job; it is that the job has two halves and the file only holds one.

Not during early access. Storyflow is paid-only right now, with plans starting at $9.99 a month, and a Free plan launches before the end of 2026. Anyone a paid member invites to a board joins free today, which matters here specifically: your engineers can read and comment on the handoff without anyone buying them a seat. If you want a free approach this minute, a well-structured document with a states checklist and screenshots covers a surprising amount of this.

No, and it would be a bad idea to try. Storyflow does not do interface design, does not produce measurements or CSS, does not export assets, and does not connect to or read your Figma files. Figma is where the design lives and where the specification comes from, and this page assumes you are using it or something like it. Storyflow holds the layer that sits alongside the file: the intent, the states, the edge cases, and the open questions. If you are choosing between them, you are asking the wrong question, because they are not solving the same problem.

Start with the six that cover most real failures: default, loading, empty, error, disabled, and permission-denied. Then add the content extremes, meaning what the component looks like with the shortest plausible content and with content several times longer than the design shows, since text length is the single most common cause of a layout breaking in production. Add offline or degraded-network behaviour if the component fetches anything. Laying these out in a row on a board is the point, because a gap in a visible row reads as a missing state, whereas a state nobody drew simply does not exist as far as the file is concerned.

It can draft the checklist, which is the mechanical half. Ask it what states and edge cases a given component type usually needs and you will get a solid generic list to work from, because that is pattern-matching against well-known categories. What it cannot do is explain your design, since it cannot see your Figma file and does not know what problem the screen solves or which decisions were deliberate. The intent layer is the part only the designer can write, and it is also the part that makes the handoff worth reading.

Answer them in the same place every time and make that place the one engineers actually open. Most repeat questions are not really new: they are the same six states and the same content-length problem arriving on a different screen. A standard board structure that every handoff follows means completeness stops depending on which designer ran it, and engineers learn where to look before asking. The other half is walking the board together once, which converts the questions people would have asked over three weeks into fifteen minutes of conversation.

Yes. Share a view-only link and anyone can open the whole handoff in a browser with no account and nothing installed. This is a genuine advantage over documenting handoff inside a design tool, where read access often means an extra seat and where engineers frequently do not have the tool open in the first place. If you want people to comment or contribute, invite them to the board and they join free when invited by a paid member.

Yes, and this is the quiet long-term benefit. Design files get iterated, and by version four the reasoning behind version two has vanished, along with the person who knew it. A board that records intent and the alternatives considered survives that, so when someone inherits the screen a year later they can see why it works the way it does rather than assuming it was arbitrary and changing it. Writing down what was explicitly rejected is often more valuable than writing down what was chosen.

Yes, and agency work is where this pays off most. When you hand a design to a team you will not sit beside, anything not written down does not survive the transfer. A board carrying intent, states, edge cases, and open questions is a deliverable in its own right, and it is readable by a client's engineers without them needing a seat in your design tool. Exporting it as a PDF for the project record is also straightforward.