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Describe the enhancement you want to request

Issue Content:

Describe the issue / feature request

In opencode desktop, when I use the shortcut command / (e.g., /skills-creator) and send it, the user message bubble in the chat displays the entire content of the skill. This takes up a significant amount of space and makes the conversation hard to follow.

Expected behavior

The user message should only show the command with the skill name (e.g., /skills-creator), keeping the chat compact and readable. The actual skill content should still be used by the agent behind the scenes, but not rendered in full inside the user's message.

Steps to reproduce

• 1.Open opencode desktop.

• 2.Make sure at least one skill is available (e.g., python).

• 3.Type /skills-creator in the input box and send it.

• 4.Look at the conversation history – you will see the full skill description/content inside the user message bubble.

Actual behavior

The user message shows the complete skill definition, which may contain many lines of text, causing the chat UI to become cluttered.

Screenshots / Additional context

Environment:
OS: [Windows10-x64]
opencode desktop version: [1.16..2]