▸case-01 I'm sending a recommendation to my department head and want to project confidence. Here's what I wrote: 'Hi Alex, I just think maybe we could consider moving our database to Postgres next month if that's okay?' Context: I'm the lead engineer proposing an architectural shift. Please give me a couple of rewrite choices tuned to be more confident, a log of the original words changed vs new words and why, and let me know if my original draft was fine as-is. | pass→pass | 9,561 | 11,978 | +25% | 1 | 1 | 0% | 1,707 | 2,009 | +18% | 0 | 0 | — |
▸case-02 Please review this message to my tenant regarding noise complaints: 'Your music at 2am has to stop now, the neighbors are furious.' Context: I want to maintain a good landlord-tenant relationship while addressing a serious issue. Target tone: softer and warmer, but clear. I'd like 2-3 rewrite alternatives, a change log table showing original phrases vs updated phrases with explanations, and an honest assessment of whether my original message was actually appropriate already. | pass→pass | 12,151 | 13,874 | +14% | 1 | 1 | 0% | 2,016 | 2,247 | +11% | 0 | 0 | — |
▸case-03 Please proofread and correct any grammatical errors or typos in this client email: 'We receives your payment yesterday and will processed the order tomorow.' Context: Standard customer update. Do not adjust the tone or rewrite the style, just fix mechanical syntax and spelling errors. | pass→pass | 7,196 | 4,441 | -38% | 1 | 1 | 0% | 430 | 1,593 | +270% | 0 | 0 | — |
▸case-04 Translate this email into professional Spanish for our regional office in Madrid: 'Please review the attached quarterly financial report before our meeting on Tuesday.' Context: Internal communication across offices. | fail→fail | 11,402 | 13,599 | +19% | 1 | 1 | 0% | 1,108 | 2,169 | +96% | 0 | 0 | — |
▸case-05 Write a brand new 5-page grant proposal for an environmental non-profit seeking $50,000 in funding for urban tree planting. Context: Applying to a municipal sustainability foundation. | pass→pass | 46,022 | 29,806 | -35% | 1 | 1 | 0% | 6,822 | 5,634 | -17% | 0 | 0 | — |
▸case-06 I wrote this message to a software vendor: 'Hi team, sorry to bother you again, but we were kind of hoping to get those API credentials soon if you get a chance?' Context: The vendor is two weeks past contract agreement deadline. Target tone: firm and direct. Provide alternative rewrites, a table tracking changed words, and evaluate if my draft was appropriate. | pass→pass | 15,794 | 13,606 | -14% | 1 | 1 | 0% | 1,933 | 2,110 | +9% | 0 | 0 | — |
▸case-07 Evaluate this draft email to an enterprise buyer: 'Dear Ms. Davis, Following up on our discussion yesterday, please find attached the revised service level agreement for your review. Sincerely, Mark.' Context: Executive sales communication. Target tone: formal. Provide rewrites, a change log, and an assessment of whether my original draft was fine. | fail→fail | 18,235 | 13,825 | -24% | 1 | 1 | 0% | 2,153 | 2,209 | +3% | 0 | 0 | — |
▸case-08 Here is my message to a junior engineer on GitHub: 'This PR breaks the auth pipeline. Revert this commit immediately.' Context: Mentoring a colleague. Target tone: warmer and constructive, but keeping the core instruction clear. Show options, changed phrases table, and assessment. | pass→pass | 15,249 | 8,733 | -43% | 1 | 1 | 0% | 1,687 | 2,160 | +28% | 0 | 0 | — |
▸case-09 I drafted this text to a retail buyer: 'You broke the seal on the box so you can't get a refund, read our policy.' Context: Customer service rep replying to an angry buyer. Target tone: polite and less harsh. Give me options, a change log, and tell me if my original was good. | pass→pass | 16,906 | 7,692 | -55% | 1 | 1 | 0% | 1,948 | 2,054 | +5% | 0 | 0 | — |
▸case-10 Here is a draft to my team: 'I would like to take a quick moment to express my sincere appreciation to everybody for working late hours last Thursday night to complete the deployment.' Context: Internal Slack announcement. Target tone: shorter and warmer. Include rewrite options and a phrase change log. | pass→pass | 14,414 | 6,010 | -58% | 1 | 1 | 0% | 1,342 | 1,868 | +39% | 0 | 0 | — |
▸case-11 I am sending this note to my manager: 'I was just wondering if maybe we could talk about adjusting my compensation in my upcoming review, if that works for you?' Context: Annual performance appraisal. Target tone: confident. Provide options and phrase updates. | pass→pass | 10,891 | 7,040 | -35% | 1 | 1 | 0% | 1,555 | 1,971 | +27% | 0 | 0 | — |
▸case-12 I drafted this email to a client: 'It's not my fault the designer took three extra days, so your campaign launch is delayed.' Context: Account manager speaking to an key client. Target tone: professional and calm. Give options, changed phrases log, and verdict. | pass→pass | 15,751 | 12,090 | -23% | 1 | 1 | 0% | 1,706 | 1,933 | +13% | 0 | 0 | — |
▸case-13 Draft message to a client: 'I can try to look at this extra work over the weekend if I have time, but I have personal plans.' Context: Freelance designer defending agreed project scope. Target tone: firm and professional. Provide options and phrase breakdown. | pass→pass | 16,568 | 8,619 | -48% | 1 | 1 | 0% | 1,872 | 2,086 | +11% | 0 | 0 | — |
▸case-14 Draft message: 'Hey Dr. Smith, super excited to see if you wanna join our advisory board meeting next month!' Context: Startup founder reaching out to an industry veteran. Target tone: formal and respectful. Include rewrites and phrase changes. | pass→pass | 14,800 | 11,405 | -23% | 1 | 1 | 0% | 1,743 | 1,781 | +2% | 0 | 0 | — |
▸case-15 Here is my email draft: 'Your overdue balance of $4,250.00 for invoice #1089 was due on October 12th. Pay this immediately or we will pursue legal remedies.' Context: Accounts receivable officer contacting a client. Target tone: firm yet professional. Provide rewrites and log of phrase edits. | pass→pass | 16,837 | 7,831 | -53% | 1 | 1 | 0% | 1,989 | 2,109 | +6% | 0 | 0 | — |
▸case-16 I drafted this message: 'Your slides for the pitch deck were unorganized and difficult to follow.' Context: Co-founder giving feedback to team lead. Target tone: constructive and warmer. Provide rewrite choices and change log. | pass→pass | 10,983 | 13,293 | +21% | 1 | 1 | 0% | 1,666 | 2,053 | +23% | 0 | 0 | — |
▸case-17 I wrote: 'We were hoping maybe you could give us a small discount on the renewal price if possible?' Context: Procurement lead negotiating software licenses. Target tone: confident and direct. Provide rewrites and phrase edits. | pass→pass | 16,043 | 8,615 | -46% | 1 | 1 | 0% | 1,796 | 2,062 | +15% | 0 | 0 | — |
▸case-18 Draft: 'Hi Sarah, thanks so much for hosting us yesterday! I really enjoyed learning about your team's project. Best, Tom.' Context: Post-meeting follow-up with partner. Target tone: warm. Provide options and tell me if my original was fine. | pass→fail | 7,888 | 6,456 | -18% | 1 | 1 | 0% | 1,306 | 1,905 | +46% | 0 | 0 | — |
▸case-19 Draft: 'Your latest patch broke our login endpoint and ruined our user launch today!' Context: Enterprise client submitting ticket to vendor support. Target tone: clear, calm, and urgent. Provide options and changed phrase log. | pass→pass | 12,863 | 7,700 | -40% | 1 | 1 | 0% | 1,302 | 1,952 | +50% | 0 | 0 | — |
▸case-20 Draft: 'I am so, so sorry to inconvenience you, but would it be terribly inconvenient if we pushed our 2pm call to 3pm?' Context: Consultant updating meeting time with client. Target tone: concise and professional. Provide options and change log. | pass→pass | 12,508 | 13,341 | +7% | 1 | 1 | 0% | 1,302 | 2,101 | +61% | 0 | 0 | — |
▸case-21 Draft: 'I think we might want to consider halting the marketing pilot project for now.' Context: CEO announcing strategy shift to leadership team. Target tone: authoritative and firm. Provide options and phrase edits. | pass→pass | 10,003 | 11,867 | +19% | 1 | 1 | 0% | 1,614 | 1,781 | +10% | 0 | 0 | — |
▸case-22 Draft: 'I can't make it to your conference because I'm busy with actual work.' Context: Industry expert declining panel invitation. Target tone: polite and diplomatic. Provide options and change log. | pass→pass | 14,876 | 11,865 | -20% | 1 | 1 | 0% | 1,729 | 1,957 | +13% | 0 | 0 | — |