Things I’ve built
Useful things I’ve made that you could use, borrow, or talk to me about. Websites, dev tools, CLIs, and the skills I write for my AI agents.
Built isn’t the same as done, so each one says how it’s really doing. The dots show how much it gets used. A question mark means the status is my best guess.
My setup runs 50 agents right now. The skills here are written for them.
My main work is True Frontier: AI coaching, fractional AI lead work, and workshops. If something here would help your team, let’s talk.
Built by hand, before I built with AI. Anything with no activity since before 2022 counts.
Websites 15 items
Side projects and client builds. Most are up and running.
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ONE Audiobooks Website
Audiobook distribution and promotion for authors and publishers. Listeners don’t need an app.
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Teepster Website
One-and-done fantasy golf leagues for PGA tournaments, with chat, stats and badges.
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JukeJuke Website
Song requests and crowd interaction for DJ events, built for Elevate Entertainment.
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Visual Quote Pro Website
Turns a business’s quotes into something their clients engage with.
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Zoundy Website
A web app built and hosted by True Frontier for a client.
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Vibeathon & Rally Website
AI startup build events in Missouri, plus Rally, the white-label event software.
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Explore Website
Book a call with me. Built so an AI agent can book it as easily as a person.
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Nested Reader App
A calm Mac reader for a folder of Markdown notes. Built to help you understand what your AI wrote.
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Forevs Website
AI date-night ideas you rate together. Love one, and it plans it and emails you a brochure.
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Habits Website
A local-first habit tracker that an AI agent can use, too.
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Habits, rebuilt in Flutter as a native app for macOS, Android and the web.
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A guided AI conversation that turns your business context into a Master Prompt.
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Bible Readin’ Website
“Time for some good ol’ fashion bible readin’.” A reading tracker on kevnk.com.
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Toggl Time Tracker Website
See how you’re doing on your hours this month, from your Toggl data.
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A behavior-insights web app built for a client, Ripple Behavior Solutions.
Dev tools 23 items
For people who build: design tools, plugins and libraries.
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grayscale.design Website
A color palette generator for Tailwind CSS, based on luminance.
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second-opinion-mcp MCP server
An MCP server that asks several models for a second opinion, then has Claude sum it up.
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goldenratio.app Website
A design calculator, plus grid and spacing tools, all built on the golden ratio.
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tailwindcss-golden-ratio Library
A Tailwind CSS plugin for golden-ratio spacing, sizing, scale, borders and more.
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Golden Ratio Chrome extension Experiment
A Chrome extension to go with the golden ratio tools.
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A Claude Code status line where Jev guesses how far along the current turn is.
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puppeteer-laravel-mcp-server MCP server
An MCP server for Puppeteer browser automation inside a Laravel app.
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toast-builder Library
A toast notification builder for Inertia.js.
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jetstream-team-invites Library
A custom invite flow for adding Laravel Jetstream users to a team.
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golden-css Library
A golden-ratio preset for Bootstrap styles.
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tricons Library
Common icons you can customize in LESS, that morph into each other with CSS transitions.
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emmet-css Library
A utility stylesheet where the class names are Emmet abbreviations.
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evercookie-mongodb Library
A small jQuery plugin that gets or creates a MongoDB document using an evercookie.
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lazyload-responsive Library
Lazy-load your images, and serve responsive sizes while you’re at it.
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magento-static-app Library
Gets a placeholder Magento theme running fast, so you can theme with static templates.
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Turns one JSON file into a bunch of JSX files.
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A Tailwind CSS component that shows which responsive breakpoint is active.
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Statamic, Laravel, Inertia and Tailwind: a stack for a Laravel-backed SPA CMS with Vue.
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Soppy: keep your app hydrated without APIs or state management. This is the Laravel side.
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Soppy, the Vue side: keep your app hydrated without APIs or state management.
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A Gulp plugin for making SendGrid templates and versions. Pairs with Foundation Emails.
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Connects Angular to the Dropbox API, with a DropboxChooser directive.
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A lightweight, mobile-first boilerplate theme for eCommerce.
Just for fun 7 items
Games and side projects, just for fun.
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AppTime App
A dead-simple Mac tracker of the time you actually spend in each app.
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Space Drifter Game
A one-touch space survival game. Your engines are damaged, and every tap flips your drift.
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A 3D tool for planning painting compositions. Aim the camera, move down the road, export.
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MazeMaker.app Website
Make and print mazes online, for free.
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A distraction-free Markdown journal with AI-written titles and AI reflection.
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A points game to play while you watch Christmas movies.
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Small game sketches Game
Quick game prototypes: Cliff Navigator, Smash Hit Planes, Wall Block and a mash-up.
Business 7 items
True Frontier, my main business, and my other business projects.
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Brandname Maker App
Give it a product idea. Get back brand names with real domain checks.
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Brandname Maker Skill
Sends naming work to the Brandname Maker agent instead of guessing at names.
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Brand Name Maker (2019 original) Website
The first version: a quick three-step process for coming up with brand names.
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My business site. AI coaching, fractional AI lead work, workshops and client stories.
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Catalog Contradiction Linter Experiment
Finds the spots where an online store’s product catalog contradicts itself.
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kevnk.com Website
My long-running personal site, and home to the small kevnk.com tools.
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BrandyDocs Website
Brand governance for marketing agencies. Keeps every AI prompt and piece of content on-brand.
Skills 37 items
Instructions my AI agents load when a job comes up. The ones I use most are at the top. A skill that belongs to a bigger tool sits under that tool.
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Unlazy Skill
Gates for when work comes back half done, or an agent says “done” too early.
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Plainspeak Plugin
A Claude Code plugin that rewrites work writing into plain English. Me and a couple of friends use it.
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Plainspeak Skill
Required before any email, text, Slack or GitHub post. Plain English, short sentences, one idea each.
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Todoist via API key Skill
Reads and updates my Todoist from the agent computer.
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Reads and edits notebooks on my reMarkable tablet.
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Jev skill router Skill
My skill that asks Jev which of my skills apply to a task, and has my agents make typed yes/no calls with it.
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Care before craft Skill
Before making anything public: who’s it for, who do I care about here, and could a generic AI default replace it?
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POV before build Skill
Before any new site, agent or product, write down my point of view, including one detail a generic AI would never pick.
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Before any draft, read the real history and do the research, so the references are right.
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Jev goes first Skill
Let Jev pick the model and effort before burning a big model on a job.
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Controlling idea Skill
A ten-minute sitting that turns a seed idea into a charter a standing team of agents can run from.
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Gauntlet loop Skill
Builder and critic pairs, with a blind comparison against a real quality bar.
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Public codebase context Skill
Pulls the architecture and real source code from a public GitHub repo.
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Golden Ratio Skill
Type scale, spacing ladder and line-heights, all from the golden ratio.
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Agent build Skill
Gates for taking an AI agent to production, with proof that it works.
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Fastly domain research Skill
Finds available .com, .app and .ai domains while brainstorming names.
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Gets the official per-speaker transcript from a Riverside session.
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Prints a here.now site to Google Drive as a PDF, for reMarkable.
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Editor Jev params Skill
Editing passes where Jev scores the writing on named dimensions first, then it gets rewritten.
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Video to fingerprint ops Skill
Turn a video or a long essay into understanding, then into skills or standing rules.
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Watch via agy Skill
How any agent watches and understands a video.
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Dynamic workflows Skill
Six multi-agent orchestration patterns, and when to combine them.
6 Skills inside
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Adversarial verification Skill
Independent skeptics try to knock down each finding. Only the survivors stay.
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Classify and act Skill
Sort incoming items first, then send each one to a single specialized handler.
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Fan-out and synthesize Skill
Split the work into independent pieces, run agents in parallel, then merge.
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Generate and filter Skill
Over-generate, then score and dedupe against a rubric.
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Loop until done Skill
For work of unknown size: keep spawning agents until a stop condition holds.
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Tournament Skill
Competing attempts, judged in pairs, until one wins.
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Sourced find-all Skill
A table of every entity from the public web, with a citation under every row.
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Pastes prepared text into a reMarkable notebook, with proper headings.
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Google Ads skill set Skill
Eight skills for running Google Ads honestly, from the first audit to safe changes you can undo.
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Publishes something to a truefrontier.app subdomain on here.now.
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Claude overflow Skill
A weekly bucket of tasks that uses up leftover Claude quota.
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Hand-crafted motion Skill
Steer website and app animation with named techniques and a resting state, not “add animations.”
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Opinionated skills Skill
How to write a skill with strong defaults and refusals, not a vague menu of options.
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Script first Skill
Before handing a repeatable job to AI, ask whether a script can do the predictable part.
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Idea Killer Skill
Build it, wait on it, or kill it? Biased toward kill.
CLIs 18 items
Command-line tools. You run them in a terminal, and so can an AI agent.
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A family of agent-native CLIs for sites and apps with no public API. I use it all the time.
9 CLIs inside
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loom-cli CLI
An unofficial, read-only CLI for Loom: list videos and pull the official transcripts.
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An unofficial CLI for LinkedIn messages, activity export and Boost stats.
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press-chrome CLI
Lets an agent read your open Chrome tabs. Read-only, and no debugger.
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A read-only CLI for Artificial Analysis model data: smartest, smart-fast and smart-cheap digests.
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A CLI so agents can use Google Messages for web.
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walkie-cli CLI
A read-only CLI for Walkie.app meeting transcripts and dictations.
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google-gmail-cli CLI
An unofficial CLI for Gmail filters: list, create, delete.
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google-keep-cli CLI
An unofficial, read-only CLI for Google Keep: list, search and read notes.
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An unofficial, read-only CLI for Google Photos: list albums, search, inspect items.
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Runs Claude Code, Codex and other coding CLIs through tmux, so agents can drive them headless.
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How my agents run coding work locally on my Mac, through tmuxlet.
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tmuxlet-server CLI
An OpenAI-compatible HTTP server in front of tmuxlet and other upstreams, with a fallback chain.
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An unofficial CLI and MCP server for pulling transcripts and audio out of Google Recorder.
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Google Recorder CLI Skill
Pulls transcripts and audio from my Google Recorder.
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A three-stage pipeline that walks GitHub issues through development with Claude.
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appventure-cli CLI
A CLI for Laravel projects. Give it a feature prompt and AI writes the code.
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skillify CLI
Saves context by moving long chunks of instructions into on-demand Claude Code skills.
Experiments 7 items
Spikes, prototypes and tests. Not products. Some I decided against.
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cut-list-judge Experiment
A spike: Jev checks the guardrails and finds candidates for what to cut from a page.
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Live song maps for spontaneous living-room worship. Mark the sections, loop them while you lead.
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Walkie Reader Experiment
A Chrome extension that finds a page’s main content and hands it to Walkie.app to read aloud.
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A Mac app idea: drop in links or files, AI makes loose nodes, and you decide what connects.
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SimpleMCP App
Helps business owners hook AI assistants up to the tools they already use. No code.
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yt-summaries Experiment
Summaries of YouTube videos.
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Microlink for research Skill
Screenshots, PDFs, rendered page text and tech-stack lookups, for research.
Start with a question
- How my agents watch YouTube
- Getting info from codebases and libraries
- Research
- Six workflow patterns
Tools I use or have tried
And what I’ve built for each one. All the tools →