bun dev github run fails with unclear error when no event context is provided

[Molaryy]

Description

Running bun dev github run without a GitHub Actions event context currently fails with:

Unsupported event type: undefined

This error is misleading. The real issue is that no GitHub event context is available, not that an unsupported event was provided. As a result, users are not guided toward the correct next step, such as running the command inside a GitHub Actions workflow or providing a mock event locally.

Plugins

No response

OpenCode version

No response

Steps to reproduce

bun dev githun run

Screenshot and/or share link

No response

Operating System

macOS 15.6

Terminal

Ghostty