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Custom Commands

Custom commands and skills are very similar.

Both are basically reusable prompt templates. Both help you avoid retyping the same instructions. Both can live at the project level or globally.

But there are a couple of important differences.

A skill is exposed through OpenCode's native skill tool, meaning it's in context and can be loaded when the agent chooses to.
A command is primarily a user-invoked TUI shortcut.

You run a command directly with a slash, like:

/review-changes

If you want something the agent can proactively choose because it's semantically relevant, that's usually a skill.
If you want a fast manual shortcut that only you trigger, that's usually a command.

Assignment

Tell OpenCode to create .opencode/commands/commit.md. The command should review the diff, stage and commit the project changes with $ARGUMENTS as the message, then run git pull --rebase origin main.
Invoke /commit Add reusable project workflows. Review the changes before approving the commit, then inspect the resulting commit and rebase output.

Tell OpenCode to run and submit the CLI tests from the project root.