Greg Isenberg
@gregisenberg
CEO of Late Checkout. Ships community-driven products and shares startup ideas and build-in-public frameworks twice a week on The Startup Ideas Podcast.
Follow & learn · 21 builders
The individuals and lean teams pushing the frontier of AI automation — shipping in public and sharing how they work. Follow them, learn their techniques.
@gregisenberg
CEO of Late Checkout. Ships community-driven products and shares startup ideas and build-in-public frameworks twice a week on The Startup Ideas Podcast.
Builds and shares agent skills for coding assistants, including Visual Explainer, which generates rich HTML pages and slide decks for diagrams, diff reviews, and project recaps.
Ships
Edinburgh-based freelance web developer building full-stack Laravel/Vue apps, generative art, and experimental WebGL demos like HTML-in-Canvas.
@retlehs
Ships open source tooling and shares practical scripts, like pulling backlinks for any domain for free via Common Crawl's web graph.
Security-focused writer who builds and shares AI harness optimization prompts, skills, and workflows in the Claude Code ecosystem.
Security-focused writer building and sharing meta-prompts and AI 'harness' optimization workflows in the Claude Code ecosystem.
@karpathy
Shares concrete patterns and "idea files" for building AI-automation systems, like an LLM-maintained personal wiki you hand to your coding agent to build.
Ships
Author of a Claude Code prompt patcher that rebalances the system prompts to reduce corner-cutting, with documented A/B test results.
@garrytan
Builds and open-sources GBrain, an opinionated OpenClaw/Hermes agent brain with skills, recipes, and evals for personal AI agents.
Ships
Created the tufte-viz Claude Code skill that applies Edward Tufte's data visualization principles to generate simpler, cleaner charts.
Builds codegraph, a pre-indexed local code knowledge graph that auto-syncs on code changes to reduce tokens and tool calls for AI coding agents like Claude Code, Codex, Cursor, and Gemini.
Ships
@haaarshsingh
Builds and open-sources small creative web tools, like a halftone-dots image effect with smooth morphing.
Ships
Builds and open-sources composable Claude Code agent skills for Polymarket prediction-market trading, including a scanner, edge analyzer, strategy advisor, and paper trader, with a security audit and paper-trading-first design.
Ships
@emilkowalski_
Creator of Animations.dev who teaches web animation and shares a motion vocabulary for prompting AI to produce better UI animations.
Ships
@garrytan
Builds and open-sources gbrain, an opinionated OpenClaw/Hermes agent brain that lets Codex, Claude, and other agents share persistent, compounding memory across a dedicated server.
@mvanhorn
Builds and ships Claude Code skills, including /last30days, an AI agent skill that researches any topic across Reddit, X, YouTube, HN, and the web and synthesizes grounded summaries.
Ships
@glennui
Creator of index.how, a designer's vocabulary reference that ships as an installable skill for Claude Code, Codex, and Cursor to help articulate precise design intent to devs and AI.
Builder of the illo agent skill, which turns articles and ideas into editorial illustrations using reference-locked, recurring character packs with built-in QA and re-rolls.
SEO and AI specialist who writes about making websites agent-ready and ships free tools and specs like an OKF bundle generator and EntityMap for AI search.
@teknium1
Builds and ships the Hermes Agent at Nous Research, openly sharing engineering reports like token-cost evaluations and tool optimizations.
@mvanhorn
Co-founded June and the company that became Lyft; now ships agent-first open-source tooling — including the Printing Press, a CLI-factory and library of agent-native CLIs.