Solutions Engineering @GitHub 🐙🐈‍⬛

Amsterdam, The Netherlands
Joined June 2009
return true; retweeted
I integrated this into Copilot and ran some evals this afternoon. Results were neutral at best and in most cases resulted in MORE token consumption. These results are consistent with our prior evaluation of RTK. Compression ends up removing information that the agent needs, which triggers a re-read, ultimately resulting in larger costs and latency. Beware of things that sounds too good to be true.
UP TO 95% TOKEN REDUCTION WITH ZERO CODE CHANGES A Netflix engineer just open-sourced Headroom, and it’s one of the smartest ways I’ve seen to cut LLM costs. It wraps Cursor or Claude in a local proxy to compress your payload before it hits the LLM: → Intelligently shrinks logs, JSON, and code → Perfectly preserves logic accuracy → Keeps 100% of your data local → Stops Opus-tier models from wasting tokens on boilerplate It already crossed 35K stars, which says a lot. 100% free and open-source. repo in 🧵↓
87
104
25
1,497
219,627
return true; retweeted
Starting June 1st, GitHub Copilot will move to a usage-based billing model as GitHub Copilot supports more agentic and advanced workflows. In early May, you'll see a preview bill experience, giving visibility into projected costs before the transition. 👉 Read more about the upcoming change: github.blog/news-insights/co…
526
915
1,058
2,883
3,777,246
return true; retweeted
We just released a free, open source course - GitHub Copilot CLI for Beginners! 🚀 8 chapters. One hands-on project throughout. Goes from install to context, custom agents, skills, MCP servers, and more. Fire up your terminal and start building. ✨ 🎓 Course: gh.io/copilot-cli-course 📝 Blog: devblogs.microsoft.com/blog/…
19
245
10
1,231
118,362
I like this new concept. Security-first AI driven automation workflows for your repository.
Bring GitHub Agentic Workflows to your repo. Explore 6⃣ ways to automate your repo with these continuous workflows today 🧵👇
1
51
Building custom agents for @GitHubCopilot sounds fun until you hit the reality of testing them. Let me walk you through the challenges and show you a better way to develop and test your agents locally. Combining the power of @code , CLI and Copilot SDK blog.cloud-eng.nl/2026/02/07…
3
79
Agent Skills are a relatively new and powerful way to teach AI agents new tricks. While there are many published skills available, it’s concerning that several (if not many) are poorly written and miss the point. blog.cloud-eng.nl/2026/02/01…
1
41
Just published a deep dive into my 2026, fully agent‑driven development workflow , where GitHub Copilot handles the code and I focus on architecture, decisions, and momentum. The future of building software feels very different. blog.cloud-eng.nl/2026/01/09…
1
41
What a time to be a software engineer! GitHub Copilot now includes Agents, Subagents, Reusable Prompts, Skills, and Instructions. There is a lot to understand, with several nuances to keep in mind. blog.cloud-eng.nl/2025/12/22…
1
2
64
Woop-wooop! Get your prompts ready!
📣 Claude Sonnet 4.5, Anthropic’s most advanced model for coding and real-world agents, is now rolling out in GitHub Copilot to Copilot Pro, Pro+, Business, and Enterprise ⬇️ github.blog/changelog/2025-0…
62
return true; retweeted
We've made some "beastly" upgrades to our GPT agent prompt and we're seeing big improvements in completion rates across scenarios. You can use it today in Insiders with any GPT model... "github.copilot.chat.alternateGptPrompt.enabled": true, "chat.todoListTool.enabled": true Try it out and let us know what you think!
35
151
26
1,376
128,376
Not only a solutions engineer at GitHub, but a talented occasional collage artist @return_true
1
1
119
Excited about a new project idea but unsure how to kickstart it using GitHub Copilot? 🚀 In my latest post, I delve into leveraging GitHub Copilot's Agentic capabilities to bring your vision to life. blog.cloud-eng.nl/2025/08/12…
1
93
🐙Seattle Sunrise 5k ✅
5
78
Community-contributed collection of GiHub Copilot prompts and instructions github.com/github/awesome-co…
2
100
return true; retweeted
GitHub Copilot has several features to help you code faster and better—but are you using the right one? 👀 Save time by knowing when to use Agent Mode or Copilot Edits—or both. ✅ github.blog/ai-and-ml/github…
15
30
6
222
30,479