Bitbucket PR Spell Checker is a Chrome extension developed by ryota-abe. It is a free tool that performs spell checking on Bitbucket pull requests. The extension is designed to help users identify and correct spelling errors in their code.

When using this extension, the user can navigate to the Bitbucket pull request page and initiate the spell check. The extension will scan the content of each file in the pull request and highlight any words that are suspected to be misspelled. The highlighted words will be displayed at the top of each file for easy reference.

To further assist the user, the extension also provides a feature that allows clicking on a highlighted word to display a waved underline on the corresponding line. This helps to pinpoint the exact location of the misspelled word within the code.

Overall, Bitbucket PR Spell Checker is a useful tool for developers who want to ensure the correctness of their code by performing spell checks on their Bitbucket pull requests.