The existence of this file encourages developers to move away from "one-liner" commits and toward the industry-standard . According to many commit message guides , a well-structured message should have:

COMMIT_EDITMSG is a temporary file located in the .git directory of your repository. Its primary purpose is to hold the text of your commit message while you are drafting it in an external editor (like Vim, Nano, or VS Code).

Once you save and close the file, Git reads the content, strips out the comments, and uses the remaining text as the permanent message for that commit. The Role of COMMIT_EDITMSG in Best Practices

While .git/COMMIT_EDITMSG is a transient file that disappears or gets overwritten with every new commit, it is the canvas upon which project legacy is written. Mastering how to use it—and the editors that open it—is a rite of passage for every professional developer.

If you’ve ever run git commit without the -m flag, you’ve likely been thrust into a text editor with a curious file open at the top: COMMIT_EDITMSG . While it might seem like a temporary scratchpad, this file is a fundamental component of the Git workflow, serving as the bridge between your raw code changes and a readable project history. What is COMMIT_EDITMSG ?

You can actually influence what appears in COMMIT_EDITMSG before you even start typing.

If you close the COMMIT_EDITMSG file without adding any text (or if you delete the existing text), Git will abort the commit, assuming you changed your mind [5.5].

Using COMMIT_EDITMSG makes this formatting much easier to manage than typing long strings into a terminal prompt [5.3, 5.4]. Troubleshooting and Common Scenarios

Running git commit -v will include a "diff" of your changes at the bottom of the COMMIT_EDITMSG file (as comments). This allows you to see exactly what you’re committing while you write the description.