Most cover letters die in the first sentence. “I am writing to express my interest in the position advertised on your website” tells a hiring manager nothing except that you have written a cover letter before. Recruiters skim. They are looking for one thing: proof that you understood the job and can do it.
Claude is unusually good at this task because it handles long context well, follows detailed instructions, and pushes back when your writing is vague. But the output is only as good as the prompt. Ask it to “write a cover letter” and you get the same polite template everyone else is submitting. Ask it the right way and you get a letter that sounds like you on your best day.
Below are ten prompts built to run in sequence, from decoding the job posting to getting a brutal critique before you hit send. Copy them, fill in the brackets, and paste your own material where asked.
Decode What the Job Posting Actually Wants
Before you write a single line, you need to know what the employer is really hiring for. Job descriptions bury the real priorities under boilerplate. This prompt separates the signal from the noise.
You are an experienced recruiter who has screened thousands of applications for this type of role. Read the job description below and break it down for me. First, list the three to five requirements that are genuinely non-negotiable, in priority order, and explain how you can tell they matter most. Second, list the requirements that are standard filler and can be safely deprioritized. Third, identify the underlying business problem this role exists to solve. Fourth, list the specific keywords and phrases that an applicant tracking system is likely scanning for. Be concrete and skip the generic advice. Job description: [PASTE FULL JOB DESCRIPTION]
The output becomes the brief for everything that follows. Keep it open in another tab.
Build an Achievement Bank From Your Resume
You cannot write a persuasive letter from memory. You need raw material. This prompt pulls every usable accomplishment out of your resume and reshapes it into something worth reading.
Here is my resume. Extract every accomplishment, project, and responsibility that could function as evidence in a cover letter. For each one, rewrite it as a short story in this format: the situation I faced, the action I took, the result, and the skill it demonstrates. Where a result is missing or vague, flag it and ask me the specific question that would help me quantify it. Do not invent numbers or details. Give me at least fifteen entries, ranked by how impressive they are to an outside reader. Resume: [PASTE RESUME]
The flagged items are the important part. Claude will ask you things like “how many users did this affect” and those answers are what turn a duty into a proof point.
Write the First Tailored Draft
Now you have a decoded job posting and an achievement bank. This prompt combines them. Notice how much instruction it carries about structure and tone, because that is what keeps the draft out of template territory.
Write a cover letter for the role below using only the achievements I provide. Structure it in four short paragraphs. The opening should lead with a specific insight about the company or the problem the role solves, not with my name or the job title. The second paragraph should present my single strongest piece of evidence for the top requirement, told as a brief story with a concrete result. The third paragraph should cover two more requirements efficiently. The closing should state what I want to do in the role, not thank them for their time. Keep the whole letter under 300 words. Write in plain, confident language a smart person would use in conversation. Do not use the phrases “I am excited to”, “I believe I would be a great fit”, “proven track record”, or “passionate about”. Do not invent any fact I have not given you. Job requirements: [PASTE OUTPUT FROM PROMPT ONE]. My achievements: [PASTE RELEVANT ENTRIES FROM PROMPT TWO]. Company: [COMPANY NAME AND ANYTHING YOU KNOW ABOUT THEM]
Fix the Opening Line
The first sentence decides whether the rest gets read. This prompt generates enough options that at least one will feel right, and forces variety in the approaches.
Write ten different opening sentences for my cover letter for the [JOB TITLE] role at [COMPANY]. Each one should use a different angle: a specific observation about the company’s product or market, a relevant result I achieved, a shared problem I have solved before, a genuine question about their approach, and so on. Every opening must be true to the background I have given you and must make a hiring manager want to read sentence two. None of them may begin with “I am writing to” or my own name. After the list, tell me which two are strongest for this particular company and why. My background: [PASTE SUMMARY]. Job description: [PASTE JOB DESCRIPTION]
Match the Company’s Voice
A letter written in stiff corporate English fails at a startup, and a chatty letter fails at a law firm. Feed Claude the company’s own words and let it calibrate.
Below is text taken from this company’s careers page, about page, and recent job postings. Analyze how they write: their formality level, sentence length, the values they repeat, the words they favor, and what they seem to reward in people. Then rewrite my cover letter so it sits naturally in that voice without mimicking them word for word or turning into flattery. Keep every factual claim exactly as it is. Explain the three main changes you made and why. Company text: [PASTE THEIR COPY]. My cover letter: [PASTE DRAFT]
Turn Duties Into Measurable Proof
“Responsible for managing social media” is a job description. “Grew the channel from 4,000 to 31,000 followers in nine months” is a reason to call you. This prompt closes that gap without letting Claude fabricate.
Go through my cover letter and find every claim that is vague, unmeasurable, or could be said by any candidate. For each one, ask me the specific questions that would let me replace it with concrete evidence: numbers, timeframes, scale, comparisons to what came before, or named outcomes. Do not rewrite anything yet and do not guess at figures. Just give me the list of questions, ordered by which improvement would help most. Cover letter: [PASTE DRAFT]
Answer the questions honestly, then ask Claude to rewrite those lines using only what you supplied. If you do not have a number, use scale or comparison instead. “The first person in this role” and “for a team of forty” are both specific.
Bridge a Career Change or Missing Skill
If you are switching fields or missing a listed requirement, the letter has one extra job to do. Ignoring the gap does not work, and apologizing for it works even less.
I am applying for [JOB TITLE] but my background is in [CURRENT FIELD]. Analyze which of my experiences transfer to this role and which genuinely do not. For the transferable ones, write two or three sentences that make the connection explicit and credible to someone who is skeptical, using the actual work I did rather than abstract skill labels. For the real gaps, suggest how I can acknowledge them in one short line that shows self awareness without undercutting my case, and tell me if any gap is serious enough that I should address it head on. Be honest with me about how strong this application actually is. My background: [PASTE]. Target role: [PASTE JOB DESCRIPTION]
The honesty instruction matters. Without it you get encouragement rather than assessment.
Handle the Awkward Situation
Employment gaps, a short stint, a layoff, being overqualified, relocating from another country. Every one of these has a version that reads as confident and a version that reads as defensive.
My situation is this: [DESCRIBE THE GAP, LAYOFF, JOB HOP, RELOCATION, OR OTHER CONCERN]. Write three different ways to handle this in my cover letter. Option one addresses it directly in a single sentence and moves on. Option two reframes it around what I gained or did during that period. Option three leaves it out of the letter entirely and prepares me for the interview question instead. For each option, tell me the risk and which type of employer it works best for. Keep every version brief and unapologetic.
Strip Out the Fluff
Almost every first draft is twenty percent longer than it needs to be, and the filler is exactly where readers stop paying attention. This prompt is also your defense against writing that reads as machine generated.
Edit my cover letter for density. Cut every sentence that does not add new information. Remove hedging language such as “I feel that” and “I would like to think”. Delete adverbs that are doing no work. Replace abstract nouns with the actual thing they describe. Flag any phrasing that sounds like generic AI output or corporate boilerplate and offer a plainer alternative. Cut the total length by at least twenty five percent while keeping every factual claim and every result. Then show me the before and after word counts and list the five biggest cuts you made. Cover letter: [PASTE DRAFT]
Read the result out loud afterward. Anything you would not say to a person across a table still needs work.
Get the Hiring Manager Critique
The last step is a stress test. Ask Claude to stop being helpful and start being the tired person with forty applications to get through.
You are the hiring manager for this role. You have sixty applications and eight minutes. Read my cover letter the way you actually would: skeptically and fast. Tell me in this order: what you understood in the first five seconds, the exact sentence where you would have stopped reading and why, the strongest claim in the letter, the weakest claim, anything that reads as generic or copied, and whether you would move this candidate to a phone screen. Score it out of ten on relevance to the role, specificity of evidence, and readability. Do not soften your feedback and do not compliment me out of politeness. Then list the three changes that would most improve my odds. Job description: [PASTE]. Cover letter: [PASTE DRAFT]
Run this, fix the three changes, and run it once more. Two rounds is usually enough. More than three and you start sanding off the personality that made the letter worth reading.
Getting More Out of These Prompts
Run them in one conversation rather than ten separate chats. Claude keeps the context, so by prompt nine it already knows your background, the job, and the company voice, and the feedback gets sharper.
Give it real material. Paste the full job description rather than summarizing it, and paste your actual resume rather than describing your career. The quality difference is enormous, and the fabrication risk drops close to zero when Claude has facts to work with.
Never let it invent a number. If Claude produces a statistic you cannot verify from your own experience, delete it. One fabricated result discovered in an interview costs you the job and the reference.
Finally, keep one paragraph that is unmistakably yours. The specific project you are proud of, the odd detail about why this company, the sentence that sounds like your voice rather than a well edited one. Everything else in the letter can be polished. That paragraph is what people remember when they decide who to call.
The Short Version
Decode the posting, mine your own history for evidence, draft against the top three requirements, kill the generic opening, match their voice, quantify everything you can, handle your gaps without apology, cut a quarter of the words, and let a simulated hiring manager tear it apart before a real one does.
That is the whole workflow. Ten prompts, maybe forty minutes, and a letter that gives someone an actual reason to pick up the phone.