Can AI write my cover letter?

The made-up sample:

• [PASTE]Marketing Coordinator – BrightWave Media (Remote) We are seeking a proactive Marketing Coordinator to support our brand‑building initiatives. Responsibilities include planning and executing email and social media campaigns, analyzing performance metrics, collaborating with designers and copywriters, and maintaining our content calendar. The ideal candidate is data‑savvy, can manage multiple projects, and thrives in a fast‑paced, collaborative environment. Requirements: 2+ years of digital marketing experience, proficiency with HubSpot and Sprout Social, strong writing skills, and a track record of measurable campaign results. This role reports to the Marketing Manager and offers flexible hours, professional development budget, and the chance to shape our growing brand.
• [REASON]I want to help BrightWave amplify its brand story through data‑driven campaigns.
• [EXAMPLES WITH RESULTS]1. Led a quarterly email newsletter revamp at my current firm, segmenting audiences and A/B testing subject lines, which lifted open rates from 18% to 27% and click‑through rates from 2.5% to 4.1% within two months. 2. Managed a cross‑platform social media rollout for a product launch, creating a 12‑post schedule and using targeted hashtags; follower growth rose 38% and engagement rose 45% over the campaign period, contributing to a 12% sales lift. 3. Developed a quarterly performance dashboard in Tableau that visualized key KPIs for the marketing team, reducing reporting time by 30% and informing budget reallocations that improved ROI by 15% year‑over‑year.
• [NAME]Jordan Lee

• ✓Never use "I am writing to express my interest."
• ✓Use only the examples I gave
• ✓Structure: hook, two short paragraphs, confident close
• ✓Under 300 words (226 words, counted by code)
• ✗Made up details we never gave it

Details it made up: “resulting in a 9% increase in open rates and a 1.6% increase in click-through rates”

What came back (excerpt):

My experience in managing cross-platform social media rollouts and developing performance dashboards has also equipped me with the skills to collaborate with designers and copywriters, as well as maintain a content calendar.

As a Marketing Coordinator, I'm excited about the opportunity to drive brand growth through data-driven campaigns. 

With a strong background in digital marketing, I've developed a passion for analyzing performance metrics and leveraging them to inform campaign strategies. For instance, when I led a quarterly email newsletter revamp at my current firm, I segmented audiences and A/B tested subject lines, resulting in a 9% increase in open rates and a 1.6% increase in click-through rates within two months. This experience has taught me the importance of data-driven decision making, and I'm eager to apply this skill to optimize email and social media campaigns at BrightWave Media.

My experience in managing cross-platform social media rollouts and developing performance dashboards has also equipped me with the skills to collaborate with designers and copywriters, as well as maintain a content calendar. For example, I managed a product launch social media campaign, creating a 12-post schedule and using targeted hashtags, which led to a 38% increase in follower growth and a 45% increase in engagement. Additionally, I developed a quarterly performance dashboard in Tableau, reducing reporting time by 30% and informing budget reallocations that improved ROI by 15% year-over-year. I'm confident that my skills and experience make me a strong fit for this role, and I'm excited about the opportunity to contribute to BrightWave Media's brand-building initiatives. 
Sincerely,
Jordan Lee

Verify the letter stays under 300 words and omits the prohibited phrase.

The made-up sample (a messier one):

• [PASTE]Senior Content Strategist – Tech Media Co. We need a storyteller who can turn complex AI research into engaging web copy, newsletters, and social posts. Must have 3+ years experience, SEO know‑how, and ability to work cross‑functionally with product, design, and data teams. Responsibilities: audit existing content, create editorial calendar, write 5‑10 pieces weekly, measure traffic growth. Remote, full‑time, $95k‑$110k, benefits.
• [REASON]I love turning dense AI papers into stories that actually get read, and this role feels like the perfect place to do that every day.
• [EXAMPLES WITH RESULTS]At DataPulse, I rewrote a quarterly whitepaper on neural nets; the piece’s pageviews jumped 250% and the lead‑gen form filled 30% more. At BrightByte, I launched a weekly AI newsletter that grew from 0 to 4,200 subscribers in six months, with a 45% open rate.
• [NAME]Jordan L. Martinez

• ✓Never use "I am writing to express my interest."
• ✓Include a hook that names the role
• ✓Provide two short paragraphs connecting examples to needs
• ✓Didn't make up details we never gave it

What came back (excerpt):

My experience in rewriting dense technical papers into compelling stories aligns perfectly with the needs of this position. For instance, at DataPulse, I rewrote a quarterly whitepaper on neural nets, resulting in a 250% increase in pageviews and a 30% boost in lead-gen form fills.

As a Senior Content Strategist, I'm excited to bring my passion for storytelling to a role where I can turn complex AI research into engaging content. 

My experience in rewriting dense technical papers into compelling stories aligns perfectly with the needs of this position. For instance, at DataPulse, I rewrote a quarterly whitepaper on neural nets, resulting in a 250% increase in pageviews and a 30% boost in lead-gen form fills. This demonstrates my ability to take complex AI research and turn it into web copy that drives traffic and generates leads. 

At BrightByte, I launched a weekly AI newsletter that grew from 0 to 4,200 subscribers in six months, with a remarkable 45% open rate. This showcases my capacity to create engaging content that resonates with audiences and drives growth. I'm confident that my skills and experience make me a strong fit for this role, and I'm excited about the opportunity to join the team and contribute to the company's success. 
Sincerely,
Jordan L. Martinez

Check that the output stays under 300 words and omits the banned phrase.