Applied guidance for anyone writing to a copy brief. The reasoning behind the brief’s sections is in copy brief concepts; this page is what tends to go wrong in the writing itself.
Specific beats impressive
The strongest line in most drafts is the one with a number, a name, or a mechanism in it. The weakest is the one that could describe any competitor.
A useful test: cover the logo. If a competitor could run the line unchanged, it isn’t saying anything yet.
Off-brand: “Doughnut Labs helps teams work smarter.”
On-brand: “Doughnut Labs gets a spreadsheet process running on its own by this afternoon.”
Write to the limit, don’t trim to it
Copy drafted at a comfortable length and cut to fit loses the specific part and keeps the generic part, because the specific part is what takes words. Open the channel template first and write inside the count from the first draft.
The templates hold the real limits per format. They’re linked from write copy and from each channel page.
Lead with the change, not the feature
A reader is deciding whether to keep reading, and a feature name gives them nothing to decide with. Say what they can now do.
Pull the message, don’t write a new one
The key message comes from a pillar in messaging. A campaign where every asset carries a slightly different main idea reads as several campaigns, and none of them accumulates in anyone’s memory.
Reordering emphasis for a different reader is fine. Inventing a new argument because the pillar felt stale in the third draft is not.
Check the claim before you fall in love with the line
The best line in a draft is often the one that can’t be substantiated. Check the approved claims table in messaging before the line gets into a layout, because removing it after a designer has built around it costs a round.
Superlatives and comparisons need legal review regardless of how confident you are.
Match the tone to the moment
Brand voice and tone stays the same across a launch email and an error message. The tone doesn’t. Section 4 of that workbook pairs off-brand and on-brand versions of real lines, which is faster to check against than reasoning forward from voice traits.
The recurring failures
Reuse before you write
Check the copy drive first. A line that has already run has performance behind it and has cleared review, which a fresh draft does not.
Last modified on August 10, 2026
