José Valim
@josevalim
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Mostly announcements. Creator of @elixirlang. Chief Adoption Officer at @dashbit. Building https://t.co/xncEVrwubT and https://t.co/FK8F4URJLe.
Kraków, Poland
Joined November 2007
Introducing Tidewave: beyond code intelligence. While working on our web apps, we run code, query the database, read logs, search docs… but AI tools are limited to compiling code. Watch Tidewave transform Claude Desktop into an agent by running a MCP server in your web app!
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RT @ExMexConf: 🎤 One week left to get your ExMex Conf talk in!. Got a strange project, a sharp insight, or a story worth sharing? We want t….
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RT @smartlogic: 📣 Today, @josevalim joins the Elixir Wizards to share the latest updates on Elixir's set-theoretic type system and the phas….
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As someone who never enjoyed building email templates. count me in!.
Imagine typing your website's URL, and getting an email template back?. All this using your own brand, logo, colors, styling, and built using React + Tailwind. Go try it out:
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RT @ElixirConf: 🎤Keynote alert!.Dr. @allisonrandal joins #ElixirConfUS 2025!.Open source legend, strategist, FLOSS leader & co-founder of m….
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RT @sasajuric: Finally got to watch Bryan Hunter's Waterpark talk, and just wow, it's such a great demonstration of how BEAM and Elixir can….
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RT @lambda_conf: We had talent come from all over, including Brazil!. Please welcome @polvalente and his spectacular talk:.Applied Machine….
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RT @peterdedene: “Elixir is the best programming language for building AI agents. because agents they are real time collaborative.”. Grea….
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RT @vmelnikova_en: I really hope you enjoy this episode, because I definitely did. Speaking with successful developer tool founders who und….
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Agreed. MCPs shine as a mechanism to hook different languages/runtimes into the agent for coding, rather than a service wrapper. MCPs are closer to LSPs than APIs.
Since I got so much feedback on my criticism on MCP I wrote down more thoughts on it. I'm also noticing that there is more an more talk about maybe bypassing MCP recently so this fits right in. TLDR: agentic loops work best with codegen and MCP is not composable to help here.
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RT @adamwathan: Q for business owners — does your company sponsor any open-source projects?. If so, what's the most valuable thing you get….
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RT @se4fp_workshop: 🚀 We're excited to welcome @dashbit as a Bronze Sponsor of SE4FP!. Co-founded by José Valim, Dashbit drives Elixir adop….
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Seeing more frameworks split coding agents into multiple "roles" but is there evidence this works better?. For example, wouldn't a "full-stack" agent be more effective than separate front/backend ones? Or is this mostly about optimizing context sizes?.
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Wholeheartedly agree. Many people describe coding agents as "magic", which leads people to expect it to "just work" while in practice there is a learning curve.
I genuinely hate the words I'm about to say. Prompting is a skill you can improve at over time, especially for agentic code use. More reps = better prompts = better code output.
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RT @ZachSDaniel1: usage_rules now ships with some simple elixir & otp usage rules files. Make your agents more better folks. #MyElixirStatu….
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RT @ElixirConf: ⏰ Less than 24 hours to grab Early Bird prices for ElixirConf US! Don't miss out on the savings. Register now!. https://t.c….
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RT @ElixirConf: 🎉 ElixirConf US speakers announced! @polvalente(Nx), @hugobarauna (Livebook/@Dashbit), Adam Kirk (Jump CTO), Michael St Cla….
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I also imagine @thdxr, @theo, @ThePrimeagen, etc. all deal with a reasonable amount of bullshit as part of their work and I suspect they are all better at dealing with it than I am.
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I think this is missing some nuance. Sure, “working for free” is not an excuse to vent frustration into users, but we should acknowledge free work is part of the dynamics. We all motivated by few different things, money is often one of them, and the fact money is not involved.
i hate the martyrdom attitude of OSS maintainers. users are annoying everywhere - paid products or open source. if you're a pro you don't use the "i'm working for free" excuse to vent frustration onto your users.
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Someone reached out to me saying their Broadway/GenStage pipelines were hanging across multi-node connections. If that was you, please try main, I believe this solves it:
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