How to create index.d.ts for my code?

[unional]

tsc --declaration src/index.ts --module commonjs wouldn't work because it doesn't know systemjs.

Is writing it by hand is the only way right now?

[frankwallis]

Even if it did work I don't think it would produce a single .d.ts file for your whole package (assuming your package is more than just this one file). To do that you need to use dts-generator or handcraft them. Hopefully this will get fixed by this issue

It should still be possible to generate the individual declaration files using tsc, even if the project is giving type errors. Maybe try tsc --declaration src/index.ts --module commonjs --moduleResolution classic? There is work being done to enable tsc to find the typings in jspm_packages (in the same way as it does currently in node_modules) and there is a related issue here

[unional]

Thanks. I just post a comment on the last link. I agree that's what really needed. I have added logic on jspm to package a typescript module as-is into the jspm_packages, so with the resolution logic, I don't really need to generate the declaration files.