feat: codex-models discovery via codex debug models (visibility==list)

scripts/codex-models.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+# List Codex models with reasoning levels (visibility==list only).
+# Usage: ./scripts/codex-models.sh  OR  codex debug models | ./scripts/codex-models.sh --stdin
+# Requires: codex CLI, jq
+set -eu
+if [[ "${1:-}" == "--stdin" ]]; then
+  jq '[.models[] | select(.visibility=="list") | {slug, display_name, default: .default_reasoning_level, levels: [.supported_reasoning_levels[].effort], description}]'
+else
+  codex debug models | jq '[.models[] | select(.visibility=="list") | {slug, display_name, default: .default_reasoning_level, levels: [.supported_reasoning_levels[].effort], description}]'
+fi