OpenSpec adds a lightweight spec layer to your project, so you and your AI coding assistant agree on what to build before any code is written. It sets up skills and commands for Claude Code, Cursor, Codex, GitHub Copilot and 20+ other assistants, and manages proposals, specs and their archive.
Examples
cd ~/my-project
openspec init
openspec list
openspec validate --all
openspec archive add-dark-mode
File access
OpenSpec can use projects in your home directory. To also use USB drives and other removable media (/media, /mnt), run:
sudo snap connect openspec:removable-media
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Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
On Debian 9 (Stretch) and newer, snap can be installed directly from the command line:
sudo apt update
sudo apt install snapd
After this, install the snapd snap in order to get the latest snapd:
sudo snap install snapd
To install OpenSpec, simply use the following command:
sudo snap install openspec
Browse and find snaps from the convenience of your desktop using the snap store snap.
Interested to find out more about snaps? Want to publish your own application? Visit snapcraft.io now.