13 cases, all measured
What was built, what was measured, what the client did not have to do. Clients anonymized by default.
AI-powered pronunciation feedback for an online English school
Five teachers correct students' pronunciation every day using a system that listens to the audio, compares it to the lesson's target, and returns feedback — at a per-audio cost 89% lower than the first version.
AI-powered WhatsApp support, measured in seconds
A school's business WhatsApp began responding with a median time of 96 seconds, complete with a monitoring dashboard, imported history, and two response modes — without changing the number or the phone.
Online store and ERP talking to the CRM — without duplicating a single order
Orders from Nuvemshop and Bling now automatically become deals in the CRM. The duplicate race that showed up during every sales spike was eliminated with a serial queue and a safety sweep.
+38% capacity across a transcription fleet, without buying hardware
A benchmark of 789 real audio files revealed that the speech recognizer was resampling up to six times per file. Fixing one parameter cut −27% off processing time per audio file, confirmed in production the same day.
Voice agents: from HUD to a voice-driven terminal
Three voice systems in production: a WhatsApp assistant that talks, a JARVIS-style panel with camera and tools, and a bridge that lets you give a code agent voice commands and get a spoken summary back.
Infrastructure that fits in $5/month and comes back on any machine
Everything runs on Cloudflare (Workers, Pages, R2, KV, D1) with a cost ceiling enforced in code. Encrypted backup to two destinations, and a recovery kit that restores the entire environment on a clean machine — tested, not just promised.
25 YouTube channels became 26 queryable mentors, with timestamps
Thousands of videos transcribed and indexed per second. Every answer cites the video and the exact moment. On top of that, a course app with exercises graded by AI.
Three illustrated textbooks with ~550 consistent images
Volumes 3, 4, and 5 of an English-language collection for children, with characters that stay consistent across hundreds of images, QA at scale, and a client approval portal.
Google Ads, AdSense, GA4, and GAM data integrations and auditing
An engine that read ad revenue, calculated the real value of each conversion, and fed it back to Google Ads to optimize for return — with cross-API auditing because dashboards lie.
Idle AI quota turned into assets — 16 deliverables in one night
I measured that 42% of AI usage windows were sitting empty. A dispatcher started spending the leftover capacity on verifiable tasks, with numeric criteria and a reviewer that rewards refutation. First night: 17 tasks, 16 approved.
AI Prospecting: The Agent Writes, the Human Sends
A system that builds the list, researches each business from public sources, writes a one-page brief with evidence, and prepares the message cadence. The first message never sounds like a bot — because a bot in the first message kills the conversation.
Technical assessments that decide purchases, architecture, and incidents
One-to-ten-page documents that answer a business question with measurement: which server to buy, why the platform is slow, whether it's worth building a new product. Published on our own infrastructure, shareable with the client.
Delivery and approval portal for clients, on your own infrastructure
Large file uploads, temporary links, and a PIN-protected approval portal where the client reviews and approves deliverables — no Google Drive, no WeTransfer, no third-party file hosting.
Yours could be the 14th
Start with one page and the math done.