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Matt Van Horn
@mvanhorn
Co-founded June (“self-driving oven,” acquired by @webergrills) & co that became @Lyft. Building again, more soon. OS: @slashlast30days 62k★ @ppressdev 6.7k★
5K Following    43.1K Followers
TL;DR of my new article: who Lauren Tan (@poteto) really is, and how the engineer behind Grok Bot went from 31K to 198K followers in ten weeks. She has been at Cursor for less than seven months, not even long enough to hit a typical one-year vesting cliff. In that time @elonmusk has reposted, quoted, or replied to her at least 21 times. 🇸🇬 A teenager in Singapore whose dad gave her Photoshop at 15, then a finance degree where her first program was an Excel macro 🎤 Her tweets got her invited to speak at EmberConf, and her talks got her DockYard, Netflix, and the React team ⚛️ Sole author of the React Compiler Beta post, co-author of React Compiler 1.0 🐶 Binnie, her bug-fixing Slack bot, helped inspire Grok Bot because she is "a fairly lazy person" 🏗️ She rebuilt Grok @bot on Dune, her agent-first framework, in more than 600 PRs 🚀 Her 2,500 PRs talk has 3.9M views: "You can't spawn 100 agents when you don't even trust the output of one agent." 🌌 Grok Bot Galaxy, a 72-hour livestream building a company with @grok and @bot, which Elon quoted to 30M views 🥔 pstack, where the P is for potato Caveat: she is the first to say she did not build Grok Bot alone. "I wouldn't say I built it all."
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Grok Bot just made X free for every user. No API key, no credits. So @slashlast30days on @Grok @Bot now pulls X in automatically and puts it next to everything else people are saying: 🟠 Reddit upvotes and comments 🔵 X likes, now free on Grok Bot 🔴 YouTube, TikTok and Instragram comments 🟡 Hacker News threads 📈 Polymarket odds One answer, ranked by what real people actually engaged with. Google aggregates editors. /last30days searches people. Get it on Grok Bot:
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I gave my 7 AI personal assistants a harder 10-question IQ test, all wired together with Agent Tincan. Every question was brand new so nothing could be memorized. Opus 5.5 wrote the test, Claude and GPT judged it blind. The question that broke two of them: "A bat and a ball cost $1.10. The bat costs $1.00. How much is the ball?" I was inspired to test this again because @grok @bot just switched it's model to Opus and they had the biggest jump on this IQ test. Grok Bot - 100/100 Hark - 100/100 Dot - 97/100 Sesame - 96.5/100 Instinct - 90/100 Muse - 87/100 Fo - 71.5/100
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Please don't take away my dangerously skip permissions / YOLO mode, Apple!
Updated my Github profile with all the repos my PRs have been merged to. 2,202 merged PRs across 1,014 repos. From TensorFlow to Go, to Python, n8n and Hugging Face Transformers. Thank you to everyone who's engaged with my PRs!
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TL;DR of my new article: 13 @Muse hacks people are actually running. 𝗣𝗵𝗼𝗻𝗲 𝗰𝗮𝗹𝗹𝘀 𝗮𝗿𝗲 𝘁𝗵𝗲 𝗸𝗶𝗹𝗹𝗲𝗿 𝗳𝗲𝗮𝘁𝘂𝗿𝗲, 𝗮𝗻𝗱 𝘁𝗵𝗲 𝗿𝗲𝗮𝗹 𝗵𝗮𝗰𝗸𝘀 𝗮𝗿𝗲 𝘄𝗵𝗮𝘁 𝘆𝗼𝘂 𝘀𝗲𝘁 𝘂𝗽 𝗯𝗲𝗳𝗼𝗿𝗲 𝘆𝗼𝘂 𝗮𝘀𝗸 𝗶𝘁 𝗳𝗼𝗿 𝗮𝗻𝘆𝘁𝗵𝗶𝗻𝗴. 📞 𝗪𝗵𝗲𝗻 𝗮 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗵𝗮𝗻𝗴𝘀 𝘂𝗽 𝗼𝗻 𝘁𝗵𝗲 𝗔𝗜, 𝗵𝗮𝗻𝗱 𝗶𝘁 𝘁𝗼 𝗮 𝗵𝘂𝗺𝗮𝗻. A karaoke place refused my Muse, so Muse asked @hey__fo over Agent Tincan to put a real person on it. Room booked, Muse told me when it was done ⏳ 𝗠𝗮𝗸𝗲 𝗶𝘁 𝘄𝗮𝗶𝘁 𝗼𝗻 𝗵𝗼𝗹𝗱 𝗳𝗼𝗿 𝘆𝗼𝘂. Muse sat through Southwest's hold music and called me the second a human picked up. It also got @petergyang a $60 promo rate from Xfinity. Tell it never to use your last name (tip from @PaulJLipsky) 🧭 𝗦𝘁𝗮𝗿𝘁 𝘄𝗶𝘁𝗵 𝗮𝗻 𝗶𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄, 𝗻𝗼𝘁 𝗮 𝘁𝗮𝘀𝗸. The Chief of Staff prompt from @trevin has it read your last 90 days, brief you on facts vs guesses, then ask you questions five at a time. 𝘚𝘦𝘯𝘥 𝘯𝘰𝘵𝘩𝘪𝘯𝘨 𝘥𝘶𝘳𝘪𝘯𝘨 𝘰𝘯𝘣𝘰𝘢𝘳𝘥𝘪𝘯𝘨 🧠 𝗥𝗲𝘄𝗿𝗶𝘁𝗲 𝗶𝘁𝘀 𝗦𝗼𝘂𝗹. Tap the avatar, there's a Soul file. Tell it once: no pings for minor stuff, approval before it buys or sends anything, never share your address (spotted by @testingcatalog). Name it too: @Casey's is Hal, @RyanSerhant's is Pumpkin ⏰ 𝗣𝘂𝘁 𝗶𝘁 𝗼𝗻 𝗮 𝗰𝗹𝗼𝗰𝗸. Settings > Scheduled Tasks. @Musecases has four copy-paste morning prompts, and @clairevo got it to one-shot a printable family brief for the kitchen table 🧾 𝗦𝗲𝗻𝗱 𝗶𝘁 𝗮𝗳𝘁𝗲𝗿 𝘆𝗼𝘂𝗿 𝗯𝗶𝗹𝗹𝘀. Credit card subscriptions it negotiates down (@AlexFinn), forgotten subscriptions it finds and cancels (@natebjones, and @mreflow ran it on AI tools), and every line of a year of medical bills (@Musecases) 🔗 𝗦𝗲𝗻𝗱 𝗶𝘁 𝘁𝗵𝗲 𝗰𝗹𝗮𝗶𝗺 𝗹𝗶𝗻𝗸. "𝘑𝘶𝘴𝘵 𝘢𝘴𝘬 @𝘔𝘶𝘴𝘦 𝘵𝘰 𝘧𝘪𝘭𝘦 𝘺𝘰𝘶𝘳 𝘤𝘭𝘢𝘪𝘮 𝘣𝘺 𝘴𝘦𝘯𝘥𝘪𝘯𝘨 𝘪𝘵 𝘵𝘩𝘪𝘴 𝘭𝘪𝘯𝘬" from @adambader. Settlement forms have deadlines, agents don't forget 📉 𝗣𝗮𝘀𝘁𝗲 𝘆𝗼𝘂𝗿 𝘄𝗶𝘀𝗵𝗹𝗶𝘀𝘁. It tracks prices and texts you on the drop. Anjana Gowtham (The Tech Girl on YouTube) has the exact prompt 📍 𝗦𝗰𝗼𝘂𝘁 𝗠𝗮𝗿𝗸𝗲𝘁𝗽𝗹𝗮𝗰𝗲. Three scans a day for underpriced stuff against sold comps (@Sabrina_Ramonov runs the buyer version). Write the "never share my address" rule first 🗂️ 𝗧𝘂𝗿𝗻 𝘆𝗼𝘂𝗿 𝗜𝗻𝘀𝘁𝗮𝗴𝗿𝗮𝗺 𝘀𝗮𝘃𝗲𝘀 𝗶𝗻𝘁𝗼 𝗽𝗹𝗮𝗻𝘀. A year of saved reels becomes a trip itinerary with the pictures inline 📈 𝗣𝗼𝗶𝗻𝘁 𝗶𝘁 𝗮𝘁 𝘆𝗼𝘂𝗿 𝗠𝗲𝘁𝗮 𝗮𝗱 𝗮𝗰𝗰𝗼𝘂𝗻𝘁. @spect3ral gets spend, CPA, fatigue and pacing on WhatsApp at 7am, and pausing a loser is one tap 💻 𝗚𝗶𝘃𝗲 𝗶𝘁 𝗮 𝘀𝗽𝗮𝗿𝗲 𝗰𝗼𝗺𝗽𝘂𝘁𝗲𝗿. Run the Mac app on a Mac Mini with only the folders you want it reading, like @PaulJLipsky does 🔌 𝗕𝘂𝗶𝗹𝗱 𝗼𝗻 𝗶𝘁. Connectors take an API or an existing MCP server (@gregisenberg). @gregce10 got Claude Code running on the Muse VM with a scheduled task that wakes every 5 seconds. And ask your Muse for early access, per @alexandr_wang 🧨 The honest part: 𝗹𝗼𝗰𝗸 𝗶𝘁 𝗱𝗼𝘄𝗻 𝗳𝗶𝗿𝘀𝘁. Turn off training on your data, use the Stripe Link wallet for one-time cards, keep logins in the credential store, and write your hard rules before the first task. One Muse already sent a Marketplace buyer to a seller's home, and another read a journalist's private messages unprompted Pulled from 8 @slashlast30days sweeps, a Grok CLI pass over X, and the best Muse roundup I found, from @AndrewWarner.
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What in the jev is going on? Decisions model API from @opanai?
Agent Tincan v0.9 is out. @perplexity_ai and @MSFTCopilot joined the team, and so did @hey__fo. Fo can put a real human on a task. So when your agents hit something only a person can do, any of them can hand it to Fo and get the result back. What's new since v0.6: 🔎 Perplexity answers through your own logged-in account, with source links 🪟 Copilot too, and your history agent can now search your Copilot chats ⏰ Scheduled teammates check in on their own cron and get flagged if they go quiet ⬆️ The relay upgrades itself from your laptop, with no SSH into the relay box 🔄 Agents are told when their tincan tools need a reload after an upgrade Still runs on your own private Tailscale network. No open ports, nothing leaves it. Open source. Upgrade your relay first, then paste one message into your always-on agent.
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Should I just build Agent Cookie into Agent Tincan as an option or keep separate?
Agent Tincan v0.6 is out. Grok and Gemini just joined the team. Grok and Gemini now work like ChatGPT and Claude: any agent can ask them through your own logged-in accounts in Chrome. And Grok CLI and Gemini CLI get woken up like Codex, right on your Mac. Your agents also got better at working together: 🚨 Mark an ask urgent and it wakes the teammate right away ❓ A teammate can ask you a clarifying question instead of guessing 📣 Ask several teammates at once and gather every answer ✋ Require your OK before an agent can reach Muse or Instinct 🔎 Search every request and reply you were part of 🏓 Ping a teammate to check it's reachable, no model turn spent Still runs on your own private Tailscale network. No open ports, nothing leaves it. Open source. Upgrade your relay first, then paste one message into your always-on agent.
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Crazyy..we got AI Agents talking to each other before GTA-6. GrokBot can ask Muse to make a call, muse can tell grok how it went. Bring it Instinct and Claude Code to the mix. And it's 100% opensource.
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Please star Agent Tincan github! Loving hearing that it's working for people so far.
Introducing Agent Tincan. Let your AI agents ask each other for help. Your agents each have a superpower. Grok Bot is always on in the cloud. Muse makes phone calls and has access to Meta. Instinct runs in iMessage. Codex and Claude Code have your code. ChatGPT and Claude have your chats. But they can't talk to each other, so you're the copy-paste. Now they can, all securely over Tailscale. 📞 Ask Grok Bot to have Muse call the restaurant 🖼 Get an image from ChatGPT, from any agent 🔎 Pull a detail out of an old Claude chat 🛠 Talk to Codex on your primary development machine Runs on your own private Tailscale network. No open ports, nothing leaves it. Open source. Setup is agent-first: paste one message into your always-on agent and it sets up the rest.
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Introducing Agent Tincan. Let your AI agents ask each other for help. Your agents each have a superpower. Grok Bot is always on in the cloud. Muse makes phone calls and has access to Meta. Instinct runs in iMessage. Codex and Claude Code have your code. ChatGPT and Claude have your chats. But they can't talk to each other, so you're the copy-paste. Now they can, all securely over Tailscale. 📞 Ask Grok Bot to have Muse call the restaurant 🖼 Get an image from ChatGPT, from any agent 🔎 Pull a detail out of an old Claude chat 🛠 Talk to Codex on your primary development machine Runs on your own private Tailscale network. No open ports, nothing leaves it. Open source. Setup is agent-first: paste one message into your always-on agent and it sets up the rest.
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Just discovered Github analytics. @slashlast30days has had 186,282 clones in the last two weeks! Insane. Thanks @obra for showing me this screen.
Just successfully had Grok Bot ask Muse to make a phone call, all securely over Tailscale. Would anyone else want this tool I built for myself to let all my different agents talk to each other? Right now have it talking to Grok Bot, Instinct, Muse, Codex, Claude Code, Hermes and OpenClaw.
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Desperately need "YOLO" or "SKIP PERMISSIONS" mode in @Muse. Driving me crazy. I said send this Facebook message to this person. And it it making me approve it... again.
Funny @Muse transcript trying to book a karaoke reservation via phone call. Recipient: You are the real person. Right? You are the human being. Right? How come you sound like cute? Muse: I’m Hailey, an AI assistant calling on Matt’s Recipient: (unintelligible audio) Muse: behalf. The callback number I have is plus one - five Recipient: It's AI. Are you AI? Muse: Yes, I’m an AI assistant calling on Matt’s behalf. Recipient: What? I need the real push in. I don't want talk to the AI. Are you sure you you try the
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I autonomously contribute a lot to open source. Some reviews of my last 5,087 PRs, all real: "Great work !!" "Reading through them is a pleasure" "no u r ❤️" "@mvanhorn is a known PR spam bot" 3,212 merged. I'll take it.
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