Claude Code's Thariq Shihipar shared ELI5, a skill he says people at Anthropic have been using frequently. Add a subject after /eli5 and the agent reads the relevant context, then creates an HTML explainer with big pictures and few words. What is public is closer to a compact working pattern than a released plugin. This article examines the review step that pattern adds to code comprehension, design review, and incident analysis.

Vercel Labs built fx in Zig and ships it without a Node.js or Python runtime. The current macOS arm64 executable is 6.43 MB, but size alone misses the design. fx can run as an interactive shell, a one-shot JSON command, an ACP server, or an experimental WebAssembly core. This article examines what the size and startup claims measure, which responsibilities move to the model and host, where the sandbox boundary sits, and when a disposable native agent is useful.

I cloned OpenSandbox, a 14.5k-star repository created eight months ago, and traced its four API specifications, FastAPI control plane, Go execution daemon, Docker and Kubernetes runtimes, egress layer, and Credential Vault. It looks like an SDK for creating sandboxes and running commands, but the real product is a protocol boundary that keeps agent code stable while execution environments change. This analysis covers runtime injection, credentials that stay outside workloads, pools and snapshots, and the caveats to check before adoption: default runc, backend capability gaps, and independently versioned components.

How do you engineer an LLM agent harness for a domain where wrong answers are expensive? Using Korea's ISMS-P (102 controls) as the vehicle, Claude Code reviews and audits through a domain-experts → interviewer → auditor pipeline. 10 reusable harness patterns + honest limits.

Public domain novel characters as AI agents. RAG + cognitive engine over the original text -- talk to Sherlock Holmes.

A native macOS meeting notes app. Real-time recording, automatic transcription, and AI-powered summaries -- all processed locally with on-device STT and LLM.