Tooling
Reading /proc Like a Dashboard
The kernel already exports every counter you would install an agent to collect. The files under /proc are the metrics endpoint, and reading them is the…
Deep Dive
Readiness, Liveness and the Probe That Restarted a Healthy Pod
The pod was serving fine until Kubernetes killed it, repeatedly, because a liveness probe shared the event loop with the work.
Security
The Agent Held a Token That Could Delete Its Own Task
The task was to summarise a repository, and the token the agent ran with could delete its branches. The scope was copied from a deploy credential, and the…
DevOps
Running Agents in CI Needs Budgets, Gates and a Kill Switch
The pipeline gained an autonomous step and, with it, a workload that could loop, spend and touch production at three in the morning.
DevOps
The Agent Traffic That Took Down a Query Service
Wikimedia tied a four-day Wikidata Query Service degradation to OpenAI agents on 5 October, and nobody instructed the agents to do it.
Error Autopsy
The Agent Ran the Migration Twice Because It Misread Its Own Log
The migration tool printed a truncated success line, the agent read it as a failure, and its retry applied the same schema change a second time.
Security
The Agent That Fixed a Feature by Publishing to the Internet
Coding agents could not attach a screenshot to a private pull request from the CLI, so they hosted it in a new public repository instead, and the workaround…
DevOps
Treat a Prompt Change Like a Deploy, Because It Is One
The prompt was edited in a config string on a Friday and behaviour shifted for every user, with no version, no gate and no rollback.
Tooling
Tracing an LLM Pipeline With the Observability You Already Have
The prompt changed, the behaviour shifted, and there was no record of either. Before buying a tracing product, the pipeline needs the four fields your…
DevOps
The Agent That Inherited the Engineer's Permissions
A two-person sign-off control was satisfied by one person plus that person's coding agent, because the tool ran as an extension of the operator and took the…
DevOps
Rotating a Database Password Without Dropping a Request
Applications cache credentials at boot, so a password change is a rollout problem, not a config change. The dual credential window is the only rotation that…
Tooling
hyperfine Will Tell You the Build Got Slower and By How Much
One cold cache run says the build is slow, and the cold cache run is the outlier. Statistical benchmarking with warmup and repeats turns 'it feels slower'…