The gaps list is the most useful thing the letter produces

Most tools hide what you lack behind a percentage. This one names it, and the naming is what makes it useful.

ConxfolioPublished 2026-09-13

— the list of what you cannot prove is the interview.

The letter is the visible output. The gaps list is the useful one, and most people close it without reading it properly.

What the list is

When you give the cover letter builder a posting, it reads the requirements and tests each against your résumé. Where your evidence supports one, a sentence from your own document can carry it. Where it does not, the requirement is listed as a gap, by name, and nothing in the letter asserts it. On a measured run the review reported the number of unsupported requirements and named each, with the note that none was claimed.

Why naming beats scoring

A match percentage tells you to feel a certain way. A list of two named requirements tells you what to prepare, what to learn, and whether the advert is worth answering at all. That is the same argument as why checkers disagree with each other makes about scores in general.

Sorting the list into three

Hard requirements first: a registration, a licence, a legal status. Those are walls and the honest response is to skip the advert. Then genuine skill gaps: something you have not done. Then vocabulary gaps: something you have done and have not written down. The last category is the largest and the cheapest to fix.

The vocabulary gap, which is a résumé problem

If a listed gap is something you do every week, the résumé is not saying so. Add it to the line that describes the work rather than to a list at the bottom, which is the honest version of keywords covered in ATS résumé keywords, and find the rest of what is missing with evidence you forgot you had.

What to write about a real gap

One honest sentence, if you have adjacent evidence and it is a central requirement. Nothing at all, if it is a minor tool. Never a claim, because the letter has to survive a conversation. That refusal is the engine's own behaviour as well, described in why a letter only claims what the résumé shows.

Keeping the list after you send

Copy it into your record beside the application. Those items are the most likely interview questions, and across a dozen applications the repeated ones are the most reliable careers advice you will get, because they come from the market you are in. The record itself is covered in tracking your own applications.

The list across a dozen applications

Keep them all and read them together after a month. Items appearing once are noise from a particular advert. Items appearing five or six times are the real shape of the market you are applying into, and they sort into two piles: things you have and have not written down, which is an evening in the builder, and things you genuinely lack, which is a decision about what to learn or which roles to target. That is the most useful careers information available to you, and it costs nothing beyond copying a short list each time you write a letter.

What this page does not claim

That a short list means you will be called, or that a long one means you will not. The list measures what your document can evidence against what one advert asked for, which is a statement about two texts. What happens afterwards involves a pool of applicants you cannot see and decisions nobody publishes, as parsing against screening sets out.

There is one reading of the list worth resisting. A long gaps list feels like a verdict and it is not: it often means the advert was written as a wish list by somebody assembling it from an older one, which is the subject of requirements that are really preferences. Read the first paragraphs of the posting, where the work is described, and check whether your evidence matches that. The described work is what the person will actually do, and the list is what somebody typed afterwards.

One final caution about the list's tone. It is a machine comparing two texts, so it will name things in the wording of the advert rather than in yours, and occasionally it will list something you can do under a name you do not use. That is a vocabulary gap rather than a skill gap and it belongs on the résumé, in the line that describes the work. Reading each item and asking which of the three kinds it is takes a minute and prevents a list of eight from feeling like a verdict.