agda software package provides 2.4.0.2-2, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install agda
agda is installed in your system.
Make ensure the agda package were installed using the commands given below,
$ sudo dpkg-query -l | grep agda *
You will get with agda package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Miscellaneous |
| Package | agda |
| Version | 2.4.0.2-2 |
| Description | 2.4.0.2-2 |
| Sub Section | Misc |