# Cover Letter Writing > The cover letter is a narrative artifact — a focused, one-page argument for why this human should be in this role at this company. Customization per application is non-negotiable. Parent: [Writing and Documentation](https://llms-explorer.com/tree/writing-and-documentation/) · 14 facets · 45 facts · page: https://llms-explorer.com/tree/cover-letter-writing/ ## Overview - The cover letter is a narrative artifact - a focused, one-page argument for why this human should be in this role at this company. Customization per application is non-negotiable. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#overview) ## 1. The three-part skeleton - Why this company. Show evidence you've done your homework: a product they shipped, a value they've published. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#1-the-three-part-skeleton) - Why this role. Connect the specific responsibilities to specific skills or experiences you have. Reuse 2-3 keywords from the JD. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#1-the-three-part-skeleton) - Why me. Demonstrate through evidence and stories. Don't list skills; show outcomes. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#1-the-three-part-skeleton) ## 2. Opener discipline - "I am writing to apply for the X position at Y." — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#2-opener-discipline) - "My name is X and I am a [degree/title]." — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#2-opener-discipline) - Stronger openers: — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#2-opener-discipline) - "I noticed your team published the design for the X system last month - the tradeoffs you made on Y are the same ones I worked through at Z." — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#2-opener-discipline) ## 3. Show evidence, don't list skills - Weak: "I have strong project management skills and am highly organized." — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#3-show-evidence-dont-list-skills) - Stronger: "Last year I shipped the X migration on a six-engineer team. The original estimate was four months; we delivered in five because I caught a dependency that wasn't in the original scope." — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#3-show-evidence-dont-list-skills) ## 4. Length conventions - One page maximum, no exceptions. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#4-length-conventions) - 250-350 words is the standard target. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#4-length-conventions) - 3-4 short paragraphs, block-formatted. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#4-length-conventions) ## 5. Customization per application - At a minimum, customize: — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#5-customization-per-application) - Company name and the "why this company" paragraph — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#5-customization-per-application) - 2-3 keywords from the JD — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#5-customization-per-application) - The job title in the opener — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#5-customization-per-application) ## 6. Signature and sign-off - Salutation: "Dear [Name]," when you know the hiring manager's name. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#6-signature-and-sign-off) - Sign-off: "Sincerely," is the universal safe choice. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#6-signature-and-sign-off) - Capitalization: Only the first word of the closing phrase is capitalized. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#6-signature-and-sign-off) ## 7. The "I" parade - Count how many sentences open with "I." If more than half do, the letter reads self-absorbed. Vary openings: lead with the company, the role, the project, the result. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#7-the-i-parade) ## Anti-Patterns - The cliché opener. "I am writing to apply..." — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#anti-patterns) - The reused letter. Generic flattery, no company name in the first paragraph. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#anti-patterns) - The skill list. "Strong communicator, fast learner, team player." — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#anti-patterns) - The resume rehash. Repeating the resume's bullets in paragraph form. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#anti-patterns) - The two-page letter. Always cut to one page. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#anti-patterns) - The typo in the company name. Auto-disqualifying. — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#anti-patterns) ## References - Ask a Manager - this is how to write a good cover letter (Alison Green, 2024) — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#references) - Harvard Business Review - Cover Letters Still Matter (2025) — [source](https://llms-explorer.com/sources/mdb-context-hub/cover-letter-writing/#references) ## Where this helps - Applying to a role where the job posting invites a cover letter, or where a hiring manager's stated preferences signal one will actually be read. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* - A career pivot or nonlinear background where the resume's bullet points alone don't explain the connection between past experience and the target role — the letter is where that argument gets made. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* - A referral or warm connection, where naming that context and the specific reason for applying can meaningfully change how the resume gets read. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* - A competitive application where why-this-company, why-this-role, and why-me need to be argued explicitly rather than left for the reader to infer from a generic resume. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* ## How to apply this - Draft against the three-part skeleton — why this company, why this role, why me — for a specific application, then check whether each section survives if you swapped in a different company's name; if it does, it's too generic. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* - Replace any skill-listing sentence such as "I have strong project management skills" with a single concrete outcome-based story, following the weak-vs-stronger pattern of estimate, catch, delivered result. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* - Count how many sentences open with "I" before sending; if more than half do, rewrite some openers to lead with the company, the role, or the result instead. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* - Customize at minimum the company name, the why-this-company paragraph, two to three keywords pulled from the job description, and the job title in the opener, for every application. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* ## Common mistakes - Opening with a cliché line like "I am writing to apply for the X position," which wastes the reader's first and most attention-getting sentence on filler. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* - Sending a reused, generic letter with no company name or company-specific detail in the first paragraph, signaling the application wasn't customized. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* - Rehashing the resume's bullet points in paragraph form instead of adding a story the resume couldn't tell. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* - Going past one page, which by convention signals a lack of editing discipline regardless of how good the content is. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* ## Limitations - The one-page, 250-350 word convention is a norm, not a rule enforced anywhere, so it can vary by industry, seniority, and region in ways this pack doesn't fully cover. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* - A perfectly crafted cover letter cannot compensate for a resume that doesn't support its claims — the two documents have to agree, and this pack covers only the letter. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* - Customization advice assumes real, specific detail about the target company is findable; for a company with almost no public presence, the why-this-company paragraph is much harder to make credible. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* - A typo in the company name is called out as auto-disqualifying, but the pack doesn't quantify how forgiving different hiring processes actually are about smaller errors elsewhere in the letter. — [source](https://llms-explorer.com/tree/cover-letter-writing/) *(AI-suggested, synthesized from this pack's existing facts — not extracted from a source document.)* ## Context files - [Cover Letter Writing](https://llms-explorer.com/downloads/sources/mdb-context-hub/cover-letter-writing.md)