A startup can approve its Figma screens while the front-end handover remains incomplete. The demo opens, but repository access is pending and the incoming technical owner cannot deploy from the supplied notes.
A polished demo proves that one path worked in one environment.
A Figma handoff describes design intent. A useful front-end acceptance package shows whether the startup received a working, inspectable implementation, the agreed access and documentation, and a named technical owner for what happens next. Founders and product leads need to connect each promised output to evidence and a named next owner, without auditing every line of code.
Teams should agree on the acceptance package with a front-end development partner before implementation. Waiting until the final call turns missing states or access into a negotiation.
Agree what “done” means before development starts
“Implement the approved designs” leaves too much unresolved. Approved screens may show the happy path while saying little about loading, empty, error or permission states. They may not define supported browsers or the evidence needed for release.
A useful definition of done names the routes, representative flows, agreed states, device and browser coverage, integrations, review evidence and handover responsibilities. Each item needs an acceptance method the buyer can understand. “The team checked it” is an assurance. A test result or working build is evidence.
Storybook, automated tests, deployment ownership and post-launch support do not belong in every engagement. Record what is in scope, any accepted exception and the person responsible after handoff.
Figma can settle intent, not delivery
Figma Dev Mode can expose design context, component information, variables, measurements and links to developer resources. Those details help a developer interpret spacing, assets and component use.
They cannot show whether runtime data loads, authentication works or an API returns a useful error. They do not prove that the layout works in agreed browsers or that another engineer can build and deploy the application.
Design handoff prepares inputs for implementation. Front-end acceptance establishes what was implemented, how it was checked and who can operate it next.
Build the acceptance package around evidence and ownership
The package should follow the product and scope. The buyer should still be able to trace each critical output across three columns: what the startup receives, how someone can inspect it and who owns the next action. Merge has also published a practical breakdown of front-end development deliverables.
| Receive | How to verify it | Next owner |
|---|---|---|
| Scope record and definition of done | Match delivered routes, states and agreed coverage against the signed scope | Product lead |
| Working code, repository access and setup notes | Confirm the internal technical owner can access the repo and start the project from the instructions | Internal technical owner |
| Implemented screens, routes and representative flows | Run the agreed happy path plus relevant loading, empty, error and permission cases | Product or QA owner |
| Responsive components aligned with the design system | Compare representative screens at the agreed viewport range and inspect documented component states | Design-system or front-end owner |
| API, CMS, authentication and configuration boundaries | Review the dependency and environment map, including mocks, pending back-end work and error ownership | Engineering owner |
| Agreed test and QA evidence, plus accessibility or performance evidence where scoped | Open the dated results, reproduce selected checks and review known exceptions | Product and technical owners |
| Build, deployment, rollback and handover notes where scoped | Have the next owner follow the relevant procedure and confirm access before the vendor leaves | Technical lead or operations owner |
A long inventory can still hide whether an output can be checked and who is accountable for it.
Code and access must outlive the demo
When repository handoff is in scope, require the current code, agreed dependency and configuration records, access, and setup instructions. The team should identify who controls administrative access and who can deploy.
GitHub pull request reviews can preserve comments and approvals. Continuous integration can run automated checks and expose results. Used this way, both make review evidence inspectable; neither proves quality.
A non-developer can ask the incoming technical owner to access the repository and start the project from the supplied notes. The buyer needs that person’s confirmation, with any blocker recorded rather than explained away on a call.
Accept behavior across states, not a collection of screenshots
Acceptance should cover representative flows and the non-happy-path states included in scope. A dashboard may need useful behavior while data loads, when no records exist, after a request fails or when a user lacks permission. Content extremes can expose problems that sample copy conceals.
MDN’s responsive design guidance describes layouts that adapt across screen sizes and device capabilities. It does not prescribe one universal breakpoint list. A startup should agree the viewport and browser coverage that matters to its users, then review the working build against it.
Storybook stories are one way to document rendered component states when reuse is in scope. Storybook is optional. Buyers need visibility into the agreed variants and states, wherever the team records them.
Record the technical decision behind the framework
“Built in Next.js” identifies a technology. It does not explain why the approach fits the product, how it works with the existing codebase or what tradeoffs the next team will inherit.
A concise decision record should capture the problem, chosen approach, material constraint and consequence for future work. The delivery should also state which design-system patterns the implementation follows and where deliberate exceptions remain.
The handoff should identify what the front end expects from APIs, the CMS, authentication and environment configuration. It should distinguish production connections from placeholders and assign unfinished back-end dependencies. Otherwise, a front-end issue and an upstream service issue can look identical during review.
Treat quality claims as evidence with limits
“Tested,” “accessible” and “fast” are too broad for acceptance unless the scope defines the check.
Test evidence may include automated results, a manual QA record or both. A useful record identifies the build, environment, cases checked, open issues and accepted exceptions. A green CI result establishes only that the configured checks passed.
Accessibility evidence can include semantic HTML, labels, alternative text, heading structure and keyboard operation. MDN’s accessible HTML guidance makes those checks concrete. The W3C overview of WCAG explains the wider conformance standard, which a short scan does not certify.
The Core Web Vitals set includes LCP, INP and CLS, with the 75th percentile used for most-user assessment. Lab results can help diagnose a build, but they differ from field data collected from users. Label the source, environment and agreed target instead of turning one score into a general performance claim.
Run an acceptance review that a buyer can follow
Use a fixed build or release candidate for final review. Start with the signed scope, walk through critical flows and include a relevant failure or empty state.
The incoming owner should then demonstrate repository access and follow the setup notes. Review integrations, release responsibilities and known issues. Accept each exception, return it for correction or move it into an owned backlog.
A product owner can confirm scoped behavior while a technical owner confirms access and operating responsibilities. Add design review when system alignment is in scope. Record who made each decision and which evidence they reviewed.
This method puts technical judgment with the person inheriting the code and gives the commercial buyer a traceable basis for approval.
Restream shows why continuity belongs in the deliverables
Front-end work on an active SaaS product may combine modernization with ongoing releases. In Restream’s documented front-end work, Merge moved pages to Next.js while continuing day-to-day delivery. The documented scope also included a mobile-first pricing page with reusable components, login and signup improvements, campaign support, focused front-end and QA, and safe rollbacks.
The case was not presented as a Figma handoff, and it does not show that Next.js caused better outcomes. For this article, the documented work illustrates continuity during delivery; it does not establish a universal acceptance package.
Watch for missing evidence, then respect scope boundaries
Pause before sign-off if the vendor controls the only repository or deployment account, review covers one polished route, non-happy-path states remain verbal, quality arrives as an unexplained score or the startup has not named an owner for the next release.
A marketing front end and an authenticated SaaS application will not need identical packages. Storybook, extensive automated testing, API documentation, rollback procedures or support may be unnecessary. Missing a scoped output is a delivery gap. Omitting an artifact outside the agreed scope is a scoping decision.
Record the deliverable, its acceptance evidence and its next owner before implementation. If the team cannot fill all three fields, the item is not ready for approval.
