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⚡ AI Lessons

Dev.to · Kynth
🔧 Backend Engineering
⚡ AI Lesson
1mo ago
If your API answers "clear" from an empty result set, your retention policy is product copy
I run a free lookup that answers one question: is this nonprofit in good standing? You type an EIN,...

Dev.to · Kynth
📣 Digital Marketing & Growth
⚡ AI Lesson
1mo ago
`new Date()` in your Next.js sitemap makes Google discard lastmod — export the page's own date instead
I shipped a guide site whose sitemap.ts ended with the most natural line in the world: { url:...

Dev.to · Kynth
🔧 Backend Engineering
⚡ AI Lesson
1mo ago
731 words or 2,042? Why an aggregate's population belongs in the view, not the query string
I maintain a corpus of agent instruction files scraped from public repos — AGENTS.md, CLAUDE.md,...

Dev.to · Kynth
🌐 Frontend Engineering
⚡ AI Lesson
1mo ago
A failed read must throw, not return 0 — how Next.js ISR bakes your fallback into the cache
I run a directory site: ~3,500 rows in Postgres, read over PostgREST, rendered by Next.js with...

Dev.to · Kynth
🧠 Large Language Models
⚡ AI Lesson
2mo ago
Put an LLM QA gate in front of your paid deliverable: fail-closed review, one self-heal, no retry loops
TAGS: ai, node, automation, playwright I built and shipped a compliance-report service — domain...

Dev.to · Kynth
🖌️ UI/UX Design
⚡ AI Lesson
2mo ago
Auditing a 40,000-page government site for WCAG without auditing 40,000 pages
A city of 30,000 people has more web pages than it has employees. Agendas back to 2009, a permit...

Dev.to · Kynth
🔧 Backend Engineering
⚡ AI Lesson
2mo ago
Building a Shared Capability Layer: Why Your Fifth App Shouldn't Reimplement Email
You know the moment. You're three weeks into a new app, and it needs to send a password reset...

Dev.to · Kynth
🔐 Cybersecurity
⚡ AI Lesson
2mo ago
Booking a slot over the phone without double-booking the truck: the race condition nobody warns you about
A plumber I know keeps his phone face-down on the passenger seat. Not because he doesn't want the...

Dev.to · Kynth
📰 AI News & Updates
⚡ AI Lesson
2mo ago
Stop sending net-30 reminders: predicting when a client *actually* pays
Every freelancer knows the invoice that goes into the void. You did the work. You sent the PDF. "Net...

Dev.to · Kynth
📰 AI News & Updates
⚡ AI Lesson
2mo ago
Dashboards Don't Get Opened: Building a Weekly Lapse-Risk Pipeline That Pushes Work Instead of Waiting for Logins
TAGS: ai, automation, llm, python There's a specific kind of dread in every independent insurance...

Dev.to · Kynth
💻 AI-Assisted Coding
⚡ AI Lesson
2mo ago
Any document in. Clean JSON out. — how I turned my apps' AI layer into a 39-endpoint API
I run a suite of AI products, and every one of them kept re-implementing the same jobs: parse an...
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