[BUG] TUI Fatal Error: Cannot read property 'name' of undefined (local.agent.current()) #11262

Describe the bug

OpenCode TUI crashes with a fatal error when trying to access local.agent.current().name because local.agent.current() returns undefined.

Error Message

Full stack trace:

To Reproduce

1. Open OpenCode TUI
2. Error appears on startup or during certain operations
3. TUI crashes with fatal error dialog showing three options: Copy issue URL, Reset TUI, Exit

Expected behavior

TUI should start and run normally without local.agent.current() returning undefined.

Screenshots

Environment

• OpenCode Version:
• OS:
• Terminal:
• Node.js:
• Installation method:

Root Cause Analysis

The error occurs in src/cli/cmd/tui/component/prompt/index.tsx at line 857. The code attempts to access .name on the result of local.agent.current() without checking if it returns undefined.

Possible causes:

1. local.agent is not properly initialized
2. No agent is currently selected but the code assumes one exists
3. State management issue causing agent data to be lost

Suggested Fix

Add null-safety check before accessing the property:

// Current code (likely)
const agentName = local.agent.current().name;

// Suggested fix
const currentAgent = local.agent.current();
const agentName = currentAgent?.name ?? 'Unknown Agent';