Building Hunk extensions

A Hunk extension is one TypeScript (or JSX/JS) file that default-exports a factory. Hunk imports it at startup and hands it an API object. No build step, no manifest required.

// ~/.config/hunk/extensions/hello.ts
import type { HunkExtensionAPI } from "hunkdiff/extension";

export default function (hunk: HunkExtensionAPI) {
  hunk.on("startup", (_event, ctx) => ctx.notify("Hello"));
}

This skill is a map of the touchpoints, not a recipe. Decide what to build from the user's request; use the table below to find the call, then read the linked material before writing code.