The gRPC service from part 2 is the right core for service-to-service traffic. It is also useless to a great many of the things that might want to call it: a browser, a webhook from some SaaS, a partner who will not …
The heartbeat from part 1 runs, ticks along, and shuts down politely when you ask it to. It also talks to absolutely no one. A service people can actually call needs an API, and for a typed, fast, streaming-capable one, …
A CLI does its job and gets out of the way. You run it, it prints something or writes a file, the process exits, done. Then one day you want the opposite: a thing that stays running. A server answering requests, a worker …
You ship version one. A week later someone finds a bug, you fix it, you cut version two. Now for the awkward part: how does the person who installed version one ever get version two? Email them? Hope they wander back to …
I run a Dungeons & Dragons game on the odd weekend, so when I sat down to put an AI feature inside a CLI, my first instinct wasn’t a chatbot. It was: could the tool run a little adventure, with an AI as the dungeon …
“Make it work with AI” is the request that lands on your desk with a thud and no further detail. The first time it landed on mine I braced for a treadmill of integration work: an adapter for this assistant, a wrapper for …
In part 1 you scaffolded a tool and gave it a hello command. It says the same thing every time, which is fine for a first command and useless for a real one. The moment a tool does anything worth doing it needs settings: …
Every time I start a new Go CLI, the first hour goes the same way, and none of it is the actual tool. Config loading. A logger. An update command. An error path that prints something a human can act on. A help system. I …
Way back in the introduction I promised I’d come back to the self-update integrity checks. Here we are. And the starting point is a slightly uncomfortable admission: for a good long while, go-tool-base’s update command …
go-tool-base can stash your credentials in the OS keychain, which most people building on it are perfectly happy about. But some of them ship into regulated and air-gapped environments where the binary isn’t permitted to …
