[FEATURE]: Mermaid rendering in chat

[wreed4]

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

Is there any interest in getting mermaid diagrams to render in the Chat UI?? I've found it to be really useful to ask opencode to diagram code flows or documented processes for me to understand them at a glance, but it tends to do that with ascii art. When I ask it to do it in mermaid it does, but the UI doesn't render it. It'd be useful to get it to natively support mermaid so I can more easily export those and put them into files or reminders. It's not critical since it's easy enough to get the LLM to go back and forth, but it'd be a nice feature IMO.

[rekram1-node]

We are currently rewriting the tui and it should ship this week, once it ships we can consider this more

[webboty]

Awesome. I had been thinking of adding this a s feature request as well. :-)

[berenar]

You could use https://github.com/hustcc/mcp-mermaid for the time being

[simonlearnscoding]

oh yes mermaid in chat would be awesome!!

[ddobrinskiy]

+1 yes please, very helpful for the LLM to communicate complicated schematics to the user: I use it in Cursor all the time, one of the only thing I miss from there

[dl-alexandre]

https://agents.craft.do/mermaid

[anis-dr]

Built an OpenCode plugin that renders mermaid diagrams as ASCII art directly in the TUI:

https://github.com/anis-dr/opencode-mermaid-renderer

Install:

{
  "plugin": ["opencode-mermaid-renderer@0.0.3"]
}

Supports flowcharts, sequence, state, class, and ER diagrams. Uses beautiful-mermaid under the hood.

Thanks @dl-alexandre for the Craft mermaid library suggestion!

[github-actions]

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[ddobrinskiy]

oh no plz reopen 💔