What does T[keyof T] mean?
Indexed access distributes over unions. That single rule turns T[keyof T] from noise into the union of every value type in T.
I'm Ryota Murakami who lives in Tokyo. Currently working as a freelance React/Node/TypeScript developer. Here is my independent OSS organization.





Indexed access distributes over unions. That single rule turns T[keyof T] from noise into the union of every value type in T.
VS Code already resolves {@link} for symbols the current file imports, and gives up on everything else. Go To Definition for JSDoc closes that gap today — and if enough projects adopt it, that is evidence TypeScript could support it natively.
A small VS Code extension for jumping from JSDoc {@link SymbolName} references to TypeScript workspace symbols without adding imports just for navigation.
Claude Code v2.1.152 quietly added `disallowed-tools` to Skill frontmatter. My first reaction was to file it as a 4th Skills lever for trimming initial context — that turned out to be wrong, but the thing it actually does is more interesting: it spends Claude's reasoning budget more carefully by shrinking the tool selection space.
Walking-skeleton refresh — replacing the GitHub feed with author-written context.
Small TypeScript libraries and tooling under the laststance org.