Open Source

Simulates the behaviour of AWS services in the same process as the code under test, so a test can create a DynamoDB table or an SQS queue and read it back without Docker or a network. Twenty-five services are covered so far.

Apache 2.0

Test assertion functions written as TypeScript assertion signatures, so what an assertion has established about a value stays known to the type checker for the rest of the test.

Apache 2.0

Typed object factories for test data. The factory supplies the fields a test has no opinion about, and the test states only the ones it does.

Apache 2.0

Renders the social share images for a static site's posts from their frontmatter, including syntax-highlighted images of code. The images on this site's posts come from it.

Apache 2.0

Converts Chinese hanzi to pinyin in TypeScript, in Node or in a browser, with the dictionaries shipped inside the package. It installs a command line tool as well.

Apache 2.0 and CC BY-SA 4.0

Claude Code skills packaged as installable plugins, six of them so far. Half cover how tests get written, and the rest cover data modelling and the writing around a codebase.

Apache 2.0