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Posts by Dan Siemon

Why Canada Blasted a Huge Hole Outside its Parliament
Why Canada Blasted a Huge Hole Outside its Parliament YouTube video by The B1M

Wow

youtu.be/IxFcNOmND00?... #canada

3 days ago 0 0 0 0
Eight years of wanting, three months of building with AI For eight years, I’ve wanted a high-quality set of devtools for working with SQLite. Given how important SQLite is to the industry1, I’ve long been puzzled that no one has invested in building a reall...

I just published a deep-dive into the 250-hour build behind syntaqlite, a SQLite formatter and LSP I built using AI agents.

AI agents were the only reason built this after 8 years of wanting but there's a psychological toll to AI-assisted engineering.

The post-mortem:
lalitm.com/post/buildin...

6 days ago 203 38 15 12
The machines are fine. I'm worried about us. On AI agents, grunt work, and the part of science that isn't replaceable.

"The failure mode isn't malice. It's convenience."

ergosphere.blog/posts/the-ma...

6 days ago 0 0 0 0
Agentic AI and the next intelligence explosion The "AI singularity" is often miscast as a monolithic, godlike mind. Evolution suggests a different path: intelligence is fundamentally plural, social, and relational. Recent advances in agentic AI re...

[2603.20639] Agentic AI and the next intelligence explosion share.google/Fbbak2LPf0I7...

1 week ago 0 0 0 0
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Harness design for long-running application development Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.

www.anthropic.com/engineering/...

2 weeks ago 0 0 0 0

Gemini CLI has plan mode now. I don't know how good it is but this was the main barrier to me using it other than as a reviewer for Claude Code work.

2 weeks ago 2 0 1 0
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Datadog, Block, and Cloudflare All Abandoned the Default MCP Pattern. Here’s What They Use Instead Comparing traditional, code mode, and layered query patterns — with real benchmarks on the HackerNews API

Read “Datadog, Block, and Cloudflare All Abandoned the Default MCP Pattern. Here’s What They Use Instead“ by Tanmay Deshpande on Medium: medium.com/data-science...

2 weeks ago 0 0 0 0
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LangChain Open-Sourced the Architecture Behind Coding Agents. Here's What It Actually Reveals. The same four components that power Claude Code are now open source, inspectable, and model-agnostic by design.

Read “LangChain Open-Sourced the Architecture Behind Coding Agents. Here's What It Actually Reveals.“ by Ari Vance on Medium: ai.gopubby.com/langchain-op...

3 weeks ago 1 0 0 0

100% - Shipping poor llm code is a choice

1 month ago 1 0 0 0
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Say hello to Gemini Embedding 2, our new SOTA multimodal model that lets your bring text, images, video, audio, and docs into the same embedding space! 👀 x.com/OfficialLoga...

1 month ago 56 7 5 1
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Very disturbing implications for a couple of places where I’ve lived, and encouraging ones for the place where I’m from.

From Pew: “We asked people around the world to rate the morality and ethics of others in their country.”

1 month ago 49 14 4 10
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Closing session at another great ISPAmerica. Great war stories.

share.google/oaY4TdJMHB4r...

1 month ago 0 0 0 0
University of Waterloo
@UWaterloo
x.com
This account is no longer active.
Looking to stay connected with the University of Waterloo?
• News: uwaterloo.ca/news/
• Bluesky: uwaterloo
• IG: uofwaterloo
• FB: university.waterloo
• LI: uwaterloo
Thank you
9:41 AM • 2026-02-27 • 1.5M Views

University of Waterloo @UWaterloo x.com This account is no longer active. Looking to stay connected with the University of Waterloo? • News: uwaterloo.ca/news/ • Bluesky: uwaterloo • IG: uofwaterloo • FB: university.waterloo • LI: uwaterloo Thank you 9:41 AM • 2026-02-27 • 1.5M Views

Congrats University of Waterloo for leaving X!

Make sure to follow them here @uwaterloo.ca

1 month ago 352 65 3 1
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Security boundaries in agentic architectures - Vercel A framework for drawing security boundaries in agentic architectures. Most agents run with zero isolation between the agent and the code it generates. Learn where to draw the boundaries, from secret i...

From @vercel.com: An agent performing support duties for a specific customer should receive a tool scoped to that customer's data, not a tool that accepts a customer ID parameter, since that parameter is subject to prompt injection.

vercel.com/blog/securit...

1 month ago 0 0 0 0
Agents are not thinking, they are searching Prologue

technoyoda.github.io/agent-search...

Worth reading #ai #agent

1 month ago 0 0 0 0
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Google’s A2UI Protocol Just Changed How AI Agents Build User Interfaces — Here’s My First Project… Two weeks ago, Google open-sourced something that might reshape how we think about AI-generated interfaces: A2UI (Agent-to-User Interface).

Read “Google’s A2UI Protocol Just Changed How AI Agents Build User Interfaces — Here’s My First Project…“ by Pawel on Medium: medium.com/@meshuggah22...

1 month ago 0 0 0 0
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Modular: The Claude C Compiler: What It Reveals About the Future of Software Compilers occupy a special place in computer science. They're a canonical course in computer science education. Building one is a rite of passage. It forces you to confront how software actually works...

www.modular.com/blog/the-cla...

1 month ago 0 0 0 0
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Rhai – Embedded Scripting for Rust Embedded scripting language and engine for Rust. A small, fast, easy-to-use scripting language and evaluation engine that integrates tightly with Rust. Builds for most common targets including no-std ...

rhai.rs

1 month ago 0 0 0 0
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GitHub - rune-rs/rune: An embeddable dynamic programming language for Rust. An embeddable dynamic programming language for Rust. - rune-rs/rune

github.com/rune-rs/rune

1 month ago 0 0 0 0
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GitHub - pydantic/monty: A minimal, secure Python interpreter written in Rust for use by AI A minimal, secure Python interpreter written in Rust for use by AI - pydantic/monty

This is interesting, a 'safe' Python interpreter for use by AI agents. I guess because the LLMs know Python better than Rune or RHAI?

github.com/pydantic/monty

1 month ago 0 0 2 0
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In the last 48 hours, Musk's reactions to the Epstein release show exactly why he bought Twitter.

He's used the platform to call coverage of his emails with Epstein as "lies," elevated his fans who have defended him, and gotten positive reinforcement from his AI chatbot.

2 months ago 2585 742 73 48

He should actually read the book.

2 months ago 0 0 0 0

At what point does Poilievre look at how Carney handles things and think, crap, I'm really not the person the country needs now?

2 months ago 0 0 0 0

btrfs

2 months ago 2 0 0 0

CARNEY: “.. You cannot live within the lie of mutual benefit through integration when integration becomes the source of your subordination.” 🔥

2 months ago 5508 1376 164 62

This is the best speech, just from a pure rhetoric perspective - its sophistication and persuasiveness - that I've seen a politician deliver in a good long while. Really recommend watching or reading the whole thing.

2 months ago 6251 1645 290 97
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The year everything changed Far from my best years being behind me, it feels as though everything in my life has been leading to this moment: building a completely new category of product where the most useful lessons come not f...

networkgames.fyi/the-year-eve...

2 months ago 0 0 0 0

If a restaurant served you a perfectly-cooked steal with a cockroach on it, would your feedback be "It was perfectly cooked, but there was a cockroach on it"?

Or would you just see the cockroach and conclude the steak's inedible?

In case you're wondering what impact bugs have on user feedback.

3 months ago 7 1 0 0
Prompting 101: Show, don’t tell Prompting 101: Show, don’t tell A really common mistake I see people make when writing prompts is starting t...

I've published a post on better prompting for LLMs: "Prompting 101: Show, don't tell"

This is inspired by a similar post from an internal prompt engineering training series I wrote for Mercury:

www.haskellforall.com/2026/01/prom...

3 months ago 46 11 4 0

    1 year: It will become undeniable that LLMs write good code
    1 year: We’re finally going to solve sandboxing
    1 year: A “Challenger disaster” for coding agent security
    1 year: Kākāpō parrots will have an outstanding breeding season
    3 years: the coding agents Jevons paradox for software engineering will resolve, one way or the other
    3 years: Someone will build a new browser using mainly AI-assisted coding and it won’t even be a surprise
    6 years: Typing code by hand will go the way of punch cards

1 year: It will become undeniable that LLMs write good code 1 year: We’re finally going to solve sandboxing 1 year: A “Challenger disaster” for coding agent security 1 year: Kākāpō parrots will have an outstanding breeding season 3 years: the coding agents Jevons paradox for software engineering will resolve, one way or the other 3 years: Someone will build a new browser using mainly AI-assisted coding and it won’t even be a surprise 6 years: Typing code by hand will go the way of punch cards

I joined the Oxide and Friends annual predictions podcast episode this week - here are my 1, 3 and 6 year predictions for AI and LLMs (and Kākāpō parrots) simonwillison.net/2026/Jan/8/l...

3 months ago 126 18 12 5