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Eliminate the undocumented TODOs with todocheck

Yesterday, I released todocheck – a new kind of static code analyser for annotated TODOs.

Way too often, we let leftover TODOs slip into our main branch, which leaves your coworkers puzzles, looking at it a year from now.

They’re thinking – what did I mean by “TODO: Move this to the users package”? What is the users package? It doesn’t seem to exist anymore.

todocheck helps you fix this by forcing you to mark all your TODOs against an existing, open issue in your issue tracker.

That way, if you, at some point, close the issue, thinking you’re done, the CI pipeline will sparkle in red as there is an open, unaddressed TODO in your main branch.

No longer can developers close a half-baked issue, rushing for the weekly sprint review to say “I’m done!”.

How todocheck works

You run todocheck as a standalone binary from the root of your project and it looks for issues with the following format:

// TODO J123: Fix this typo
func fuu() {

In case the linked issue J123 is open, todocheck will not report any error. In case you close the issue or it doesn’t exist, todocheck will show an error:

ERROR: Issue is closed.
myproject/main.go:12: // TODO J123: Fix this typo

ERROR: Issue doesn't exist.
myproject/main.go:14: // TODO J321: A non-existent issue

If there is an unannotated TODO in your code base, todocheck will also report it as a malformed TODO:

ERROR: Malformed todo.
myproject/main.go:16: // TODO - This is not a valid annotated todo

Only TODOs with valid, open issues are allowed to exist in the codebase.

todocheck demo gif

By integrating todocheck in your development workflow & CI pipeline, you can ensure that there will be no half-baked issue closed with pending TODOs in the codebase.

Does todocheck work with my language?

You can see the list of supported programming languages here.

There is also support for various public & private issue trackers. See the list here.

But your favorite language/issue tracker is not in the list?

Then feel free to open an issue & describe your needs. Oftentimes, adding support for new languages/issue trackers is a matter of configuration, so you might see your tool in the above lists pretty soon. Here is an example of such a request.


If you want to learn more about included features & configurations, consult the project’s README.

Why don’t you give todocheck a try right now? Download the latest release & check out the Quickstart section to get started in no-time.

Like the project? Show some love by ⭐-ing it on GitHub.

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