What Thousands of Resume Roasts Taught Us: The 10 Most Common Fails

The short answer: the most common resume fail is a bullet with no number in it, and most of the others are close cousins: duties instead of results, buzzwords instead of proof, a summary anyone could have written. None of them need new experience to fix. They need an afternoon of editing.

We built an AI tool that roasts resumes. Then we watched thousands of people use it.

The roast reads every resume the same way, scores it across the same five categories, and names the specific lines that hurt. Read enough of those verdicts and a pattern is hard to miss: the same handful of mistakes show up across industries, experience levels, and backgrounds. These aren't edge cases, and there's a fair chance a few of them are on your resume right now.

Here are the ten fails we see most, in rough order of how much each one costs you. Where we have a real number, it's linked to our research page, which is updated from live scoring data. Where we don't, we've kept it to what the roast actually says.

#1: Missing Metrics

Claims with no number in them are the largest category of flagged fluff in our data, and missing numbers are what separate the top of the pile from the middle. Bullets like "improved customer satisfaction" and "increased sales" are everywhere. Improved by how much? Increased from what to what? Without numbers, every accomplishment reads as a claim that could mean anything.

Since September 2026 the roast counts, for every resume, how many experience bullets carry a number. Those counts feed into the grade, and the pattern is consistent: resumes that quantify most of their bullets earn a B or better far more often than resumes that quantify none.

What to do about it: Go through every bullet point on your resume and ask, "Can I put a number on this?" Revenue generated, costs saved, team members managed, projects completed, customer satisfaction scores, time reduced. If you can measure it, include it. Even estimates are better than nothing. "Reduced onboarding time by approximately 30%" is far stronger than "streamlined onboarding process."

#2: Duty Descriptions Instead of Achievements

Bullet points that start with "Responsible for" or "Duties included" describe the job, not the person. Recruiters already know the general duties of a marketing manager or software engineer. What they want to know is what you specifically did with the role. Were you good at it? Did you move the needle?

What to do about it: Rewrite every "responsible for" bullet using the action-result formula: strong action verb + what you did + what happened because of it. "Responsible for social media" becomes "Grew Instagram following from 2,000 to 15,000 in 8 months, driving a 40% increase in website traffic from social channels." We wrote up ten before-and-after rewrites if you want the full pattern.

#3: Buzzwords Doing the Work of Evidence

"Results-driven." "Team player." "Detail-oriented." "Proven track record." These aren't fails because they're clichés; they're fails because they replace evidence with assertion. Our data on this one is specific: "cross-functional" is the phrase our detector quotes more than any other, roughly twice as often as anything else, and the median resume scores 22 out of 100 on buzzword density.

What to do about it: Every claim needs a bullet that proves it. If you're detail-oriented, the proof is a clean, error-free page with precise metrics, not the phrase. Run your resume through the free BS Detector to see which phrases are on yours.

#4: Generic Professional Summary

A summary that could belong to literally anyone: "results-oriented professional with a passion for excellence," "dedicated team player seeking a challenging opportunity." It's the first thing a recruiter reads, and when it's generic it signals that the rest is probably generic too.

What to do about it: Your summary should answer three questions in two or three sentences: What do you do? What are you great at? What's the most impressive thing you've accomplished? Make it specific to you and, ideally, tailored to each application. The fix is a three-sentence formula built around one number only you could claim; here are summary examples for every situation.

#5: Outdated or Irrelevant Skills

Skills that don't belong in this decade or have nothing to do with the roles being targeted. The greatest hits: Microsoft Office (it's assumed), "social media" (which one? doing what?), and "typing speed." We keep a running list of the 8 skills not to put on your resume.

What to do about it: Audit your skills section for every application. Remove anything that's expected baseline knowledge. Replace generic entries with specific tools: "Salesforce CRM," "Google Analytics 4," "Python (pandas, scikit-learn)," "Figma." If a skill doesn't strengthen your candidacy for the specific role, cut it.

#6: Poor Formatting and Scannability

Inconsistent spacing, walls of text with no visual breaks, decorative templates that confuse the parser, sections in an illogical order. Recruiters scan resumes; they don't read them word by word on the first pass. If there's no clear visual hierarchy guiding the eye from your name to your strongest qualification in seconds, the content barely matters.

What to do about it: Use a clean, single-column layout with clearly labeled sections. One or two fonts. Bullet points, not paragraphs, for experience. Consistent alignment and spacing. Then test it by squinting at it from arm's length: if you can't tell where each section starts and stops, neither can a recruiter.

#7: Padding

Not length itself. Nothing in the grade is a page count. What gets flagged is padding: coursework and high school activities on a five-year professional's resume, every part-time job since sixteen, the same duties restated under every role. A two-page resume for three years of work screams "I don't know what's important."

What to do about it: Length should follow your relevant experience: one page for about the first five years, two once you're past ten, and in between whichever your real content fills. Every line should demonstrate a relevant skill, showcase a measurable accomplishment, or provide context that strengthens your candidacy. If it doesn't do one of those three things, cut it.

#8: No Tailoring to the Target Role

Catch-all resumes trying to appeal to every possible employer, and as a result appealing strongly to none. Many ATS setups let recruiters filter or rank by keywords from the job description. Recruiters look for relevance in the first few seconds. A generic resume fails both tests.

What to do about it: You don't need to rewrite from scratch for every application. Adjust your summary, reorder bullets to lead with the most relevant, and mirror keywords from the posting. Our free Job Match tool lists the keywords a specific posting wants that your resume isn't showing.

#9: Unexplained Employment Gaps

A gap of six months or more with zero context, just sitting there, daring the recruiter to wonder what happened. Gaps happen: layoffs, caregiving, health, travel, going back to school. The problem isn't the gap. It's the vacuum of information, which recruiters tend to fill with their worst assumptions.

What to do about it: Address gaps briefly and honestly. A single line is enough: "Career break for family caregiving (2024-2025)" or "Professional sabbatical: completed AWS Solutions Architect certification and freelance consulting." How to explain resume gaps has the full playbook, and for the specific case where you were fired, see how to handle being fired on your resume.

#10: Burying the Best Content

A genuinely impressive accomplishment, leading a product launch, closing a major deal, publishing research, hidden as the last bullet of the third role on page two. Resumes are not mystery novels. The best stuff goes at the top.

“Resumes are not mystery novels. The best stuff goes at the top.”

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What to do about it: Treat your resume like a newspaper: lead with the headline. Your most impressive, most relevant accomplishments belong in your summary or the first two bullets of your most recent role. Don't make the recruiter dig.

What the Pattern Tells Us

The most striking thing isn't any single mistake. It's how consistent they are. A senior engineering manager and a recent marketing graduate can easily be making the same errors.

That consistency is encouraging, because it means the fixes are universal too. Add metrics. Lead with achievements. Cut the filler. Tailor for each role. These aren't secrets; they're fundamentals that a lot of resumes skip.

The gap between a mediocre resume and a strong one is often smaller than it looks. Usually it's an afternoon of focused editing away.

Want to see which of these ten are on your resume? The roast will tell you, with zero sugarcoating, and since September it shows the counts behind your grade: how many of your bullets carry a number, how many only describe a duty, and how many unsupported claims are on the page.