bug(codex): browser-pocket server restart is always refused on Codex 0.157 — the empty-composer check cannot see an empty composer #1313

Actual

requestServerRestart (browser pocket) delivers with requireEmptyNativeComposer: true. For Codex, promptDelivery.ts then requires isCodexNativeComposerEmpty(snapshotScreen()), which expects:

• the idle footer <model> · <cwd> on the last row, and
• a bare › row above it.

Codex 0.157.0 renders neither when the composer is empty.

Evidence (recorded 2026-09-25, raw PTY stream, codex-cli 0.157.0, 100×30)

Idle, empty composer:

26|› Ask Codex to do anything
28|  GPT-6-Sol high fast · ~/Desktop/Development/agent-code
29|  ← for agents · ? for shortcuts            ⚠ 1 warning · f2 to view

• The placeholder is dim (\x1b[2mAsk Codex to do anything), so the › row is never bare.
• A second footer row (hints or warnings) sits below the status row.
• isCodexNativeComposerEmpty therefore returns false on an empty composer, and the restart is refused with "Codex native input is occupied or cannot be verified empty".

With a typed draft, the row is › please review the draft in plain cells. Only the cell attributes tell a placeholder from a draft, as with Claude.

Expected

An empty composer (bare or dim placeholder) is verified empty, and a typed draft still refuses the delivery.

Plan

Fix together with #800: codex-headless gains a live-buffer, attribute-aware composer read (bottom-pane anchored, 1–2 footer rows), and the app uses it for this check and for Codex draft occupancy.

🤖 Generated with Claude Code