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1.Fly's Sprites.dev addresses dev environment sandboxes and API sandboxes together (simonwillison.net)
22 points by simonw 21 hours ago | past | 10 comments
2.Daft Punk Easter Egg in the BPM Tempo of Harder, Better, Faster, Stronger? (madebywindmill.com)
783 points by simonw 8 days ago | past | 130 comments
3.2025: The Year in LLMs (simonwillison.net)
939 points by simonw 9 days ago | past | 599 comments
4.Your job is to deliver code you have proven to work (simonwillison.net)
859 points by simonw 23 days ago | past | 658 comments
5.I ported JustHTML from Python to JavaScript with Codex CLI and GPT-5.2 in 4.5hrs (simonwillison.net)
14 points by simonw 25 days ago | past | 3 comments
6.How I wrote JustHTML, a Python-based HTML5 parser, using coding agents (friendlybit.com)
58 points by simonw 27 days ago | past | 24 comments
7.OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI (simonwillison.net)
587 points by simonw 28 days ago | past | 324 comments
8.Useful patterns for building HTML tools (simonwillison.net)
354 points by simonw 31 days ago | past | 94 comments
9.The Resonant Computing Manifesto (resonantcomputing.org)
19 points by simonw 36 days ago | past | 3 comments
10.Claude 4.5 Opus Soul Document, which has now been confirmed by Anthropic (gist.github.com)
14 points by simonw 39 days ago | past | 1 comment
11.Reverse engineering Codex CLI to get GPT-5-Codex-Mini to draw me a pelican (simonwillison.net)
168 points by simonw 62 days ago | past | 76 comments
12.Code research projects with async coding agents like Claude Code and Codex (simonwillison.net)
3 points by simonw 65 days ago | past
13.New prompt injection papers: Agents rule of two and the attacker moves second (simonwillison.net)
114 points by simonw 68 days ago | past | 44 comments
14.Agents Rule of Two: A Practical Approach to AI Agent Security (meta.com)
3 points by simonw 70 days ago | past
15.Code like a surgeon (geoffreylitt.com)
285 points by simonw 78 days ago | past | 134 comments
16.Use AI to code like a surgeon (twitter.com/geoffreylitt)
3 points by simonw 78 days ago | past | 2 comments
17.Getting DeepSeek-OCR working on an Nvidia Spark via brute force with Claude Code (simonwillison.net)
201 points by simonw 82 days ago | past | 45 comments
18.Jesse Vincent: How I'm using coding agents in September, 2025 (fsck.com)
5 points by simonw 3 months ago | past | 1 comment
19.Embracing the parallel coding agent lifestyle (simonwillison.net)
15 points by simonw 3 months ago | past | 1 comment
20.Designing agentic loops (simonwillison.net)
284 points by simonw 3 months ago | past | 117 comments
21.Cross-Agent Privilege Escalation: When Agents Free Each Other (embracethered.com)
5 points by simonw 3 months ago | past
22.Fine-grained HTTP filtering for Claude Code (ammar.io)
2 points by simonw 3 months ago | past | 1 comment
23.I think "agent" may have a widely enough agreed upon useful definition (simonwillison.net)
5 points by simonw 3 months ago | past
24.Recreating the Apollo AI adoption rate chart with GPT-5, Python and Pyodide (simonwillison.net)
2 points by simonw 4 months ago | past
25.GPT-5 Thinking in ChatGPT (a.k.a. Research Goblin) is good at search (simonwillison.net)
361 points by simonw 4 months ago | past | 255 comments
26.Nothing to see here (it was Cloudflare crawler hints) (simonwillison.net)
15 points by simonw 5 months ago | past | 2 comments
27.Vibe code is legacy code (val.town)
758 points by simonw 5 months ago | past | 454 comments
28.The best available open weight LLMs now come from China (simonwillison.net)
13 points by simonw 5 months ago | past | 4 comments
29.My 2.5 year old laptop can write Space Invaders in JavaScript now (GLM-4.5 Air) (simonwillison.net)
577 points by simonw 5 months ago | past | 396 comments
30.Using GitHub Spark to Reverse Engineer GitHub Spark (simonwillison.net)
7 points by simonw 5 months ago | past | 4 comments

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