Function userMsg

apps/vis/server/test/lib/context-projector.test.ts:452–455

(text: string)

  it('apply_compaction keeps user messages across a preceding undo marker (model)', () => {
    const userMsg = (text: string) => ({
      role: 'user' as const, content: [{ type: 'text' as const, text }], toolCalls: [],
      origin: { kind: 'user' as const },
    });
    // Step 1: append u1, u2 then undo(1) → removes u2, leaves [u1, <undo marker>].
    // Step 2: append u3, u4 → array is [u1, <undo marker>, u3, u4].
    // History entries (agent-core _history, which has NO marker) are the three