Aaron Villalpando
@aaron__vi
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Building a prompting framework for agents called BAML. (YC W23). @BoundaryML
Joined August 2011
We're converting all of YC from Langchain to BAML. One at a time.
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Soham running late to his 12th yc standup meeting of the day due to the war
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if the models stopped getting better we'd still have years worth of things to build.
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Dynamodb.
You work for a site that drops limited-edition sneakers. Tomorrow, you're releasing a shoe. There are only 1,000 pairs in stock. A million users are on the product page, waiting. The timer hits zero. Your system is instantly hit with 500,000 concurrent requests to "add to.
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RT @0xblacklight: I built an open-source deep research agent with Gemini, @ExaAILabs and @boundaryML's BAML + a terminal UI. (also has a s….
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these ai agents are just 10x better than humans at searching for super specific things in a repo. I can't write these goddamn regexes in 1s.
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On june 24, 2025 I felt the AGI after using Claude Code for the first time. programmers will definitely be shepherding coding agents 80% of the time in 10 years.
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RT @hellovai: "its all just software. we just need to program llms" - @karpathy . sounds like we need a programming language. 🤔 https://t….
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RT @hellovai: does using the word "agent" and "tool calling" make it harder for others to understand what it actually is?. an agent is just….
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Just use BAML.
Ranking of LLMs by the % of JSON violations we detected over the past week, for the top Structured Output requests. ⭐️ Qwen, Mistral, and GPT-4o-mini generally doing the best.‼️DeepSeek v3, Sonnet 4 seeing violations north of 20%
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Imagine an ai agent that tries out 100 different solution paths at the same time to solve any given problem. Only a matter of time before token costs go down by 100x. Shit's about to get real crazy.
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Has a couple more bugfixes that are unrelated I made in there cause im lazy.
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Claude Sonnet just migrated our Rust repo from Minijinja 1.0 to Minijinja 2.0 in basically one-shot. I just let it run via Cursor's Background Agents feature and it was done after $5 and 10ish mins of work. I was inspired by @mitsuhiko 's posts on Claude code so I gave it a try
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