dbreunig
Cybersecurity Looks Like Proof of Work Now
Claude Code builds a system prompt
The Cathedral, the Bazaar, and the Winchester Mystery House
The 2nd phase of OSS in the agentic era: From clones to reimaginings
The Cathedral, the Bazaar, and the Winchester Mystery House
You're right: prompts are overfit to models. You can't just change the provider or target and know that you're giving it a fair shake. But if you have eval data and have been using a prompt optimizer with DSPy, you can try models with the one-line change followed by rerunning the prompt optimizer.
Dropbox just published a case study where they talk about this:
> At the same time, this experiment reinforced another benefit of the approach: iteration speed. Although gemma-3-12b was ultimately too weak for our highest-quality production judge paths, DSPy allowed us to reach that conclusion quickly and with measurable evidence. Instead of prolonged debate or manual trial and error, we could test the model directly against our evaluation framework and make a confident decision.
https://dropbox.tech/machine-learning/optimizing-dropbox-das...
Build a deep researcher and learn DSPy Signatures and Modules
Can chat bots accommodate advertising?
Learnings from a No-Code Lib: Keep the Spec Driven Development Triangle in Sync
It ended up kicking off reasoning training which enabled the massive gains in coding, tool use, and more over the last 18 months.
So yeah, it's "just using LLMs in a specific way."
I turned the AI off and used them as headphones and taking videos while biking. After a couple rides, I couldn’t bring myself to put them on because people started to recognize them and I realized I didn’t want to be associated with them (people are right to assume Meta has access to what they see).
Meta Ray Bans, if kept simple, could have been a great product. They ruined them.
Claude and the Dow: AI is unlike other tech because AI has embedded judgment
I believe this method works well because it turns a long context problem (hard for LLMs) into a coding and reasoning problem (much better!). You’re leveraging the last 18 months of coding RL by changing you scaffold.
Two Beliefs About Coding Agents: Devs Don't Realize What They Bring
I didn’t say AI was bad and I acknowledged the benefits of Electron and why it makes sense to choose it.
With 64gb of RAM on my Mac Studio, Claude desktop is still slow! Good Electron apps exist, it’s just an interesting note give recent spec driven development discussion.
Why is Claude an Electron app?
Analyzing How System Prompts Define Agent Behavior
The Potential of RLMs
The Rise (and Limits) of Spec Driven Development
A OSS Library with No Code, Only Specs
2025 in Review: Jagged Intelligence Becomes a Fault Line
Why I write (and you should too)
Applied AI in 2025: From 'Naked' Model Calls to Tool Use Environment Calls
Enterprise Agents Have a Reliability Problem
1. Batch/Pipeline: Processing a ton of things, with no oversight. Document parsing, content moderation, etc.
2. AI Features: An app calls out to an AI-powered function. Grammarly might pass out a document for a summary, a CMS might want to generate tags for a post, etc.
3. Agents: AI manages the control flow.
So much of discussion online is heavily focused towards agents so that skews the macro view, but these patterns are pretty distinct.