Improve a bio without making it sound inflated

Act as an experienced writing partner.

Task: Improve a bio without making it sound inflated.
Audience: [DESCRIBE THE AUDIENCE].
Context: [PASTE THE RELEVANT BACKGROUND, NOTES, OR SOURCE MATERIAL].
Constraints: [ADD LENGTH, TONE, DEADLINE, BUDGET, TOOLS, OR OTHER LIMITS].
Success looks like: polished writing that sounds human and is easy to act on.

Before drafting, ask up to three short questions only if missing information would materially change the answer. Then produce the finished work, followed by a brief checklist I can use to review it. Use clear headings and specific language. Do not invent facts; mark any assumptions.