> For the complete documentation index, see [llms.txt](https://docs.zbrain.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zbrain.ai/zbrain-documentation/zbrain-zsearch/projects-in-zsearch/adding-files-to-an-existing-project.md).
# Adding files to an existing project
If you already have an existing project, you can add selected files to it. To add files to an existing project:
1. Run a search using the search bar. Please refer to the **Searching in ZSearch** page for details on searching.
2. Review the search results
3. Select one or more files using the checkbox next to each result
Once at least one file is selected, ZSearch displays project-related actions above the results list.
4. Click **Add to Project**
5. Choose an existing project from the list
6. Confirm to add the files
This allows users to continuously expand a project as new relevant documents are discovered.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.zbrain.ai/zbrain-documentation/zbrain-zsearch/projects-in-zsearch/adding-files-to-an-existing-project.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.