markdown-rendering

Markdown Rendering in cmux

When to Use

• Use when opening Markdown in cmux shows a blank pane or wrong layout.
• Use when you need to display a Markdown file in a stable cmux right pane.

The Problem

cmux markdown open defaults to spawning a brand-new pane every time, even with --direction right. The common "fix" — moving the new markdown surface into the existing right pane with move-surface — bugs out: the moved viewer renders BLANK. The surface keeps type=markdown and looks healthy, but shows nothing.

So you get stuck: either a stray extra pane, or a blank viewer after moving it.

The Rule

You have exactly two reliable options. Never move-surface a markdown viewer — that is the path that bugs.

Option A — Open it right on the first try

If there is no usable right pane yet, just let cmux create one and leave it where it lands:

cmux markdown open /abs/path/file.md --direction right --focus false

Do NOT then move it. If it spawned where you want it, you're done.

Option B — Close existing right pane(s), then open fresh

If there are other right panes in the way (and they're unused or irrelevant), close them first, then open the markdown fresh as a new right pane:

# 1. find panes in THIS workspace
cmux list-panes --workspace "$CMUX_WORKSPACE_ID"

# 2. close the unused/irrelevant right pane(s) by closing t