The Fundraising Writing Filter is a free custom instruction file for ChatGPT and Claude. Load it once. Every donor letter, appeal, grant narrative, and thank-you it writes passes through a detection-driven editing system that strips AI-detectable patterns before you see the output. Six years of frontline donor communications is what determines which words to ban, which constructions to flag, and exactly how to instruct an AI to write like a development professional. Not a content generator.
Free. Works with ChatGPT and Claude. No credit card.
AI detection tools measure two things: perplexity (how predictable your word choices are) and burstiness (how much the energy varies across a document). This filter addresses both — plus the structural patterns, banned words, and passive voice constructions that flag your writing before a human even reads it.
Nonprofit Revenue Strategy & Philanthropic Growth · Greater Philadelphia
Connect on LinkedInSix years as Director of Development at a pediatric skilled nursing facility in Delaware. $13.8 million raised across 3,625 gifts. Built the development program from an empty desk and a Rolodex nobody had updated since 2014.
Kyle built this filter because he knew what good donor writing sounded like before AI existed. He could hear when it didn't. Six years of writing appeals, grant narratives, and thank-you letters for real donors produced the banned word list, the structural flags, and the tone calibration inside it. The detection science confirms what the writing instinct already caught. You get it free.
Free. Works with ChatGPT and Claude. Load it once and every piece it produces passes through the filter automatically.
Get the Writing Filter →© 2026 Kyle Conner, CFRE