Submitting 2 challenges in one day :) Day 3 is about skills. Mine is called client-voice-dna. It lives in my .claude/skills/ folder, it's 92 lines of markdown, and it sits in the middle of a chain that ships actual paying-customer content for two of my businesses. The honest version of this post is: the skill itself isn't the impressive part. The impressive part is the sequence of skills it's wedged between. Day 3 for me is really about what happens when you stop building individual skills and start composing them. Here is the chain (see attached dashboard): Voice notes and Reels → Wispr to transcribe → client-voice-dna (this skill) → Prism (Claude agent that drafts copy) → humanizer skill (strips AI tells) → ship. What client-voice-dna does It reads a transcript and produces a two-register voice DNA profile for a specific person. Public voice on one side: confident, in their vocabulary, ships as copy. Private voice on the other: hedges, self-deprecation, friend-register fillers, reference only. The output is a markdown file saved at active/<client-slug>/<client>_voice_dna.md. How I trigger it Whenever new client source material arrives. A new Sharpr client sends WhatsApp voice notes, that's a trigger. A CreatorsForge partner records a batch of Reels, that's a trigger. A discovery call transcript drops, that's a trigger. It always runs after the speech-to-text pass and always before any copy gets drafted. Two real uses, two different businesses Sharpr Automations is my AI automation agency. Clients hire me to wire automations into their business, and a lot of those automations produce content: captions, DMs, masterclass invites, email sequences. None of that ships unless it sounds like the client themselves wrote it. My first Sharpr client is a UK-based stretching coach. He records WhatsApp voice notes for me at the end of his day: what he's seeing in his sessions, what's working, what he wants to teach next. I run them through Wispr to transcribe, the skill builds the voice DNA file from the transcript, and from then on every caption, masterclass invite and DM that ships for him is drafted by Prism (the name I gave my Claude agent) against that file. The copy reads like he wrote it, because at the level of vocabulary and cadence and signature lines, he did.

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