# Overview ## Handles Packages are referenced by a handle of the form `OWNER/NAME`. Team packages include a prefix, `TEAM:OWNER/NAME`. ## READMEs A `README.md` is recommended at the root of every package. README files support [full markdown syntax via remarkable](https://jonschlinkert.github.io/remarkable/demo/). READMEs are rendered to HTML on the [package landing page](https://quiltdata.com/package/danWebster/sgRNAs). ## Short hashes Commands that take hashes support "short hashes", up to uniqueness. In practice, 6-8 characters is sufficient to achieve uniqueness. ```bash quilt install uciml/iris -x da2b6f # matches da2b6f56f323b11f7ebe2e32fd3a920e82842aaf0d52fc48eeb1e20f470e66c7 ``` ## Instances, hashes, tags, and versions * A package *instance* is a package handle plus a hash. `akarve/sales:fc7f0b` is an instance. Instances are immutable. * *Hashes* are automatically generated by Quilt for each package build. * *Tags* are human-readable strings associated with a package instance. Tags can be altered to point to different instances of the same package. The most recent build is automatically tagged `"latest"`. * *Versions* are human-readable strings associated with a package instance. Unlike tags, versions can only ever point to a single package instance. --- # Agent Instructions: 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: ``` GET https://docs.quilt.bio/quilt-2-master/api/api-overview.md?ask= ``` The question should be specific, self-contained, and written in natural language. 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.