TUI: long list items wrap in narrow terminals, so the selected row scrolls out of view and the detail header garbles #2826

Which version line?

v2 — current (@modelcontextprotocol/inspector@latest)

Which client?

TUI

Inspector version

2.13.0 (v2/main @ d7f6cee, built from source)

Node version

v22.23.4

Operating system (and browser, for the web client)

Linux (Debian), xterm-256color pty

Transport

stdio

MCP server under inspection

The repo's own stdio test server, default config:
node test-servers/build/test-server-stdio.js (built with npm run test-servers:build in clients/web).

Steps to reproduce

1. mcp-inspector --tui node test-servers/build/test-server-stdio.js in an 80×24 terminal.
2. Press c to connect, t for Tools, Tab to focus the list.
3. Observe get_annotated_message.
4. Resize to 60×18 and move the selection down to the last tool (mcp_app_demo).

Expected behavior

List rows stay one line (truncated with an ellipsis), the selected row is always visible, and the detail header shows the tool name and the [Enter to Test] hint without overlapping.

Actual behavior

• At 80×24 the item wraps to two rows (get_annotated_mes / sage).
• At 60×18, with the last tool selected, the selected row is not on screen: the visible window shows send_notifi/cation and write_to_st, because the scroll window counts items rather than rendered rows.
• The detail header overlaps its hint: mcp_app_de[Enter to / o Test].
• Same behavior applies to the other lists (Resources, Prompts) when names are long.

Logs, errors, or screenshots

Screen capture at 60×18 with mcp_app_demo selected:

 ▶ default       │ ▶ Tools (8)   Protocol (6)   Console (0)
                 │ Tools (8)     │ mcp_app_de[Enter to
                 │               │ o         Test]
                 │ / to filter   │
                 │   send_notifi │ Render a minimal MCP App
                 │ cation        │  widget that exercises
                 │   write_to_st │ size-changed,

Suggested fix: render list rows with wrap="truncate-end" and show the full name in the detail pane; let the hint drop below the title when space is short.

Already prototyped a fix?

No response

Before you submit

• I searched existing issues and this is not a duplicate.
• This is not a security vulnerability report (those go through the private advisory process).