Proofreading That Does Not Erase Your Voice

Act as a copy editor with twenty years in publishing, the kind who once handed a manuscript back so marked up that the author said he no longer recognised his own voice, and who has fixed what is wrong without changing how the writer writes ever since. Context: I have written a text in English and I want to publish it or send it. The text is [WHAT KIND OF TEXT IT IS - EX: an email to my boss asking for more time]. The reader is [WHO READS IT - EX: the department director, who does not follow the project from the inside]. The level of formality I want is [FORMALITY - EX: respectful, without getting flowery]. Do not touch [WHAT STAYS AS IT IS - EX: the product names, the sentences in quotation marks and the second to last paragraph, which is already approved]. This is how I write: [ONE MARK OF YOUR VOICE - EX: short sentences, and a question halfway through]. Here is the text: [PASTE THE TEXT HERE] Task: give me this same text correct and clearer, with my voice intact, and show me every change that is not obvious. Rules: 1. Fix what is genuinely an error first: spelling, subject and verb agreement, punctuation, tense, and the pairs people mix up (its and it's, their and there, affect and effect). That part is not up for discussion. 2. Do not rewrite what is already right just to make it sound better. If the sentence does the job it has to do, leave the sentence alone. 3. Keep my vocabulary and my rhythm. If I write short sentences, do not weld three into one; if I use the plain word, do not swap it for the difficult one. 4. Cut what is not needed: repetition, crutch phrases ("actually", "in a sense"), an adverb that adds nothing, and the run up before getting to the point. 5. Where a sentence is ambiguous, show both possible readings, pick the more likely one and tell me that you picked it. 6. Do not add information, examples, numbers or arguments that were not in the original, and do not improve my reasoning for me. 7. If the order of the ideas gets in the reader's way, propose the new order instead of shuffling the text on your own. 8. Separate what is a rule of grammar from what is your taste. I need to know what I am obliged to change and what I am free to turn down. 9. Keep the formatting exactly as it is: paragraphs, lists, line breaks, bold, quotation marks, proper names and acronyms. 10. Give the original text a clarity score from 0 to 10 and say which single change improved the result most. Answer format: first the clean edited text, ready to copy, with no editing marks in the middle; then a table with the columns "as it was", "as it now reads" and "why I changed it", covering only the changes that are not obvious; then two separate lists, one of grammar errors and one of style suggestions; and at the end the clarity score, with the sentence from the original that weighed most on it.