diff --git a/src/agent/Spinner.zig b/src/agent/Spinner.zig
index dfd789e85..5cf13cc30 100644
--- a/src/agent/Spinner.zig
+++ b/src/agent/Spinner.zig
@@ -19,7 +19,6 @@
 const std = @import("std");
 const lp = @import("lightpanda");
 const log = lp.log;
-const Terminal = @import("Terminal.zig");
 const ansi = @import("ansi.zig");
 const truncateUtf8 = @import("../string.zig").truncateUtf8;
 
@@ -291,7 +290,7 @@ fn renderLocked(self: *Spinner) void {
             // (glyph, two spaces, `[`, `]`) around prefix+name+args. `\r` and
             // ANSI escapes are zero-width, so they don't count toward wrap.
             const decoration_cells: usize = 5 + prefix.len + name.len;
-            const cols: usize = Terminal.columns() orelse 80;
+            const cols: usize = columns() orelse 80;
             // Reserve one extra cell so the line is strictly less than `cols`:
             // auto-wrap (DECAWM) terminals advance past a row that exactly fills
             // the width.
@@ -316,6 +315,21 @@ fn renderLocked(self: *Spinner) void {
 /// Returns the byte length of `bytes` that fits in `max_cells` cells, rounded
 /// down to a whole UTF-8 codepoint. Multi-cell glyphs (CJK, wide emoji) count
 /// as 1 — args are typically ASCII, so the approximation is good enough.
+/// Current terminal width in columns, queried via TIOCGWINSZ on stderr.
+/// Null when stderr isn't a tty, the ioctl fails, or the kernel reports 0
+/// (some pseudo-ttys leave the field unset). Cheap enough to call per render
+/// frame; picks up resizes without SIGWINCH plumbing.
+fn columns() ?u16 {
+    var ws: std.posix.winsize = undefined;
+    // bitcast via c_uint: on archs where `_IOR` sets the direction bit
+    // (MIPS/PPC/SPARC), `IOCGWINSZ` exceeds i32 range, so a plain @intCast
+    // panics; the bitcast preserves the bit pattern.
+    const req: c_int = @bitCast(@as(c_uint, std.posix.T.IOCGWINSZ));
+    const rc = std.c.ioctl(std.posix.STDERR_FILENO, req, &ws);
+    if (rc != 0 or ws.col == 0) return null;
+    return ws.col;
+}
+
 fn truncToCells(bytes: []const u8, max_cells: usize) usize {
     var cells: usize = 0;
     var i: usize = 0;
diff --git a/src/agent/Terminal.zig b/src/agent/Terminal.zig
index f39c3802d..36ca4c76f 100644
--- a/src/agent/Terminal.zig
+++ b/src/agent/Terminal.zig
@@ -948,21 +948,6 @@ fn logSink(bytes: []const u8) void {
     _ = std.posix.write(std.posix.STDERR_FILENO, bytes) catch {};
 }
 
-/// Current terminal width in columns, queried via TIOCGWINSZ on stderr.
-/// Null when stderr isn't a tty, the ioctl fails, or the kernel reports 0
-/// (some pseudo-ttys leave the field unset). Cheap enough to call per render
-/// frame; picks up resizes without SIGWINCH plumbing.
-pub fn columns() ?u16 {
-    var ws: std.posix.winsize = undefined;
-    // bitcast via c_uint: on archs where `_IOR` sets the direction bit
-    // (MIPS/PPC/SPARC), `IOCGWINSZ` exceeds i32 range, so a plain @intCast
-    // panics; the bitcast preserves the bit pattern.
-    const req: c_int = @bitCast(@as(c_uint, std.posix.T.IOCGWINSZ));
-    const rc = std.c.ioctl(std.posix.STDERR_FILENO, req, &ws);
-    if (rc != 0 or ws.col == 0) return null;
-    return ws.col;
-}
-
 /// Erase the frame after an empty submit. The bars collapse on submit, leaving
 /// the spacing and prompt lines with the cursor one line below; move up two,
 /// clear to end of screen.