> For the complete documentation index, see [llms.txt](https://gitbook.bergelsonlab.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook.bergelsonlab.com/data-pipeline/basic-levels/update-annotations-in-chas-and-opf.md).

# Update annotations in CHAs and OPF

* Copy the CHAs/OPFs you want to update into a separate folder and edit the copies only.
* Update using CLAN/DataVyu or any other way you prefer.
* Go to a local clone of "annotated\_cha" or "annotated\_opf" repositories (you might need to create one first).
* Run "backup.py". Check the diff, commit, push. This will sync the CHAs/OPFs from "Seedlings/Subject\_Files" to your local clone.
* Copy new CHAs/OPFs to the appropriate places in the repository (for OPFs, see "annotated\_opfs/opfs\_to\_unpack/README.md"). Check the diff, commit, push.
* Run "restore.py". This will sync CHAs/OPFs from your local clone to "Seedlings/Subject\_Files".
* Propagate the changes down the [pipeline to seedlings-nouns](/data-pipeline/basic-levels.md).


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