$ cat post/the-firewall-dropped-it-/-a-rollback-took-the-data-too-/-it-ran-in-the-dark.md
the firewall dropped it / a rollback took the data too / it ran in the dark
Title: September 22, 2025: A Day in the Life of AI-Assisted Engineering
Today was one of those days where the line between human and machine feels more fluid than ever. Let me take you through my day as an engineering manager with a platform team, deeply entwined with the latest in AI-native tools.
I started the morning with a quick review of our internal dashboard that integrates LLM-assisted ops. The tool had been running smoothly for weeks, but today it flagged something unusual: an unexpected spike in API request latency from one of our microservices. I grabbed my trusty eBPF-powered probe and dove into the code.
The AI copilot suggested a few potential causes, most centered around network delays or cache misses. I decided to use bpftrace to get some real data points. The command was straightforward:
sudo bpftrace -e 'tracepoint:raw_syscalls:sys_enter_getaddrinfo { @count = count(); }'
Within seconds, the probe was giving me detailed stats on DNS resolution times. It turned out that a new CDN provider we just onboarded had some latency issues, and our LLM hadn’t caught it during its initial review. I quickly fired off an alert to the ops team, who are now tuning their monitoring for this specific service.
Mid-morning brought in the first of several H-1B visa discussions with HR. The new policy imposing a $100k fee for each worker was a real head-scratcher. While it made me worry about our growing international talent pool, the tech industry’s dependency on skilled immigrants remains a hot topic.
I had a quick lunch break and took my usual spot at the café in front of my desk. The place was buzzing with activity as our developers were working on integrating WebAssembly (Wasm) into our containerized applications. We’re leveraging the convergence between Wasm and containers to build more flexible and efficient microservices, but it’s not without its challenges.
After lunch, I joined a team standup where we discussed our progress on Claude Sonnet 4.5. The latest release had some impressive features that could really streamline our workflows, but there were still some bugs we needed to iron out. One of the engineers mentioned that NPM debug and chalk packages had been compromised recently—talk about timing! We quickly pulled in a security audit and reinforced our package management practices.
The afternoon was spent finalizing the rollout plan for our new AI copilot feature. The copilot has become such an integral part of our workflow that it’s almost hard to imagine getting by without it now. However, there’s always room for improvement. I had a heated debate with one of my team members about whether we should allow the copilot to generate production code directly. In the end, we decided to stick with more controlled environments and manual reviews, but it was a good reminder that even AI tools can’t replace human judgment.
As the day wound down, I checked in on the progress of our multi-cloud strategy. We’ve been gradually shifting from our monolithic cloud provider to a more balanced approach across several clouds. Post-hype Kubernetes is indeed boring and essential, but it’s also incredibly powerful when you have the right tools and processes in place.
I ended my day with a quick review of the Hacker News stories that had caught my eye earlier. The post about hosting a website on a disposable vape was particularly amusing. While the tech industry debates regulations and ethical concerns, sometimes it’s refreshing to see how far we’ve come—and how much there is left to do.
As I walked home from the office, I couldn’t help but feel grateful for the technological advancements that make my work both challenging and rewarding. The line between human and machine continues to blur, and while it’s exciting, it also means keeping a sharp eye on all the moving parts.
This day in 2025 was just another reminder of how much technology has evolved—and how much we still need to learn about working alongside these incredible tools.