In subcontract work you rarely meet the people building your design. Everything you failed to specify becomes a decision someone else makes without you.
The gap between a design that survives implementation and one that gets quietly compromised is almost never talent. It is whether the ambiguities were resolved on paper or discovered at build time by someone with a deadline.
Specify the states, not just the screens
Empty, loading, error, too-long, too-many. A design that only shows the happy path is half a design, and the other half will be invented by whoever picks it up.
This is the single highest-value thing in the package and it is the thing most often missing.
Specify between the breakpoints
Two artboards describe two widths. Say what happens in between: what wraps, what truncates, what reorders, what disappears entirely and why.
Every unspecified behaviour is a decision you have delegated to someone who has never spoken to the client.
Ship tokens, not swatches
Named values that map to what the developer will actually write. A hex code in a comment gets typed in once and never updated; a token gets referenced.
Record a walkthrough
Ten minutes of screen recording explaining the intent behind the structure will be watched by everyone who touches the file, including people who join later. Nobody reads the twelve-page document.
And leave a route back. One named person, one channel, and a stated willingness to answer questions — the alternative is a guess, and the guess ships.
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