[FEATURE]: VS Code Integration for Reviewing OpenCode Code Changes (Diff Preview)

[liangxiao777]

Feature hasn't been suggested before.

• I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

Currently, when modifying files that contain hundreds of lines of code, previewing changes in the TUI is very painful for me. I have to scroll back and forth in a very small window just to review the code modifications.

When using Claude Code, I can connect it to an external IDE (e.g. VS Code). After the agent generates code changes, I can preview/review the diffs in VS Code, and then go back to the TUI to decide whether to accept the changes or provide further feedback.

I hope OpenCode can support a similar workflow as well.

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• [FEATURE]: Session or Per-chat File Diff Viewer #5102: [FEATURE]: Session or Per-chat File Diff Viewer - Proposes an integrated diff viewer in OpenCode TUI to review code changes without scrolling, addressing the same core pain point
• Editor integrations #216: Editor integrations - Requests editor integrations like Claude Code's VS Code extension with ability to display diffs in external editors
• [FEATURE]: cleaner and more aware extensions integration with vscode #7275: [FEATURE]: cleaner and more aware extensions integration with vscode - Discusses VS Code extension improvements including awareness of open editors and selected text
• Feature Request: manually edit the LLM-generated diffs via external editor #2167: Feature Request: manually edit the LLM-generated diffs via external editor - Requests ability to edit diffs via external editor

Feel free to ignore if none of these address your specific case.

[Pl8tinium]

please feature this. This would be amazing and allow me the switch from GH Copilot

[liangxiao777]

please feature this. This would be amazing and allow me the switch from GH Copilot

In the current existing functionality, an alternative implementation is adopted. If you set "edit": "ask" in opencode.json, you can preview the agent's code modifications and use ctrl+f to preview in full-screen mode within the TUI. Unfortunately, even in this mode, there are only 4 lines of context outside the modified code, preventing you from previewing the diff across the entire modified code file. Therefore, I have raised a new issue: #9026, and based on this, submitted a PR to implement it: #9357

[Pl8tinium]

Thats cool, makes sense to me. Though tbh i would still rather have an optional functionality that allows me to review my stuff in vscode and i think i speak for a reasonable group of people