Golden Hex

MCP MessagePack Benchmarks Go Performance May 30, 2026 17 min read

Binary vs JSON for MCP: I Went Looking

Protobuf beats JSON. GraphBinary beats GraphSON. So I went looking for where a binary wire helps MCP. The answer, in the venues I tested, was narrower and more interesting than I expected: not text-heavy tools, not JSON-optimized structured payloads, but exactly where JSON is forced to fake binary.

jj Developer Tools Learning Git February 2, 2026 5 min read

Learning Jujutsu by Teaching It

Building an interactive learning tool for jj, inspired by learngitbranching.js.org, because the best way to learn is to teach.

Go Developer Tools CLI Hash DevOps January 23, 2026 4 min read

Hash Devlog: Setting Up for Daily Driving

Building the infrastructure to use Hash as my daily shell: version injection, Homebrew distribution, and a quick way to report bugs from the terminal.

Go Developer Tools CLI AI Hash Debugging January 9, 2026 5 min read

Hash Devlog: Tracing the Missing Keystrokes

Keystrokes were vanishing. Claude couldn't find the bug. So I built a trace system and caught orphaned goroutines fighting over stdin.

Go Developer Tools CLI Shell January 3, 2026 3 min read

Introducing Hash: Building an Agentic Shell

Why I'm building Hash (Harness Assisted SHell) - a Go-based shell with editor-style input, Helix keybindings, and agent-agnostic AI integration.

FluxCD Kubernetes DevOps YAML Helm December 26, 2025 5 min read

Schema Validation for FluxCD HelmRelease Files

Bring LSP-powered autocomplete and validation to your FluxCD HelmRelease YAML files by creating composite JSON schemas that validate both the release structure and your Helm chart values.