Shift+Enter submits the message instead of inserting a new line after Cmd+R

What version of Codex CLI is running?

0.154.0

What subscription do you have?

GPT Plus

Which model were you using?

gpt-5.6-luna

What platform is your computer?

Darwin 25.5.0 arm64 arm

What terminal emulator and version are you using (if applicable)?

iTerm2, Terminal.app

Codex doctor report

{
  "schemaVersion": 1,
  "generatedAt": "1789019577s since unix epoch",
  "overallStatus": "ok",
  "codexVersion": "0.154.0",
  "checks": {
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      "id": "app_server.status",
      "category": "app-server",
      "status": "ok",
      "summary": "background server is not running",
      "details": {
        "control socket": "/Users/gyu/.codex/app-server-control/app-server-control.sock",
        "daemon state dir": "/Users/gyu/.codex/app-server-daemon",
        "mode": "ephemeral",
        "pid file": "/Users/gyu/.codex/app-server-daemon/app-server.pid (missing)",
        "settings": "/Users/gyu/.codex/app-server-daemon/settings.json (missing)",
        "status": "not running",
        "update-loop pid file": "/Users/gyu/.codex/app-server-daemon/app-server-updater.pid (missing)"
      },
      "remediation": null,
      "durationMs": 0
    },
    "auth.credentials": {
      "id": "auth.credentials",
      "category": "auth",
      "status": "ok",
      "summary": "auth is configured",
      "details": {
        "auth file": "/Users/gyu/.codex/auth.json",
        "auth storage mode": "File",
        "stored API key": "false",
        "stored ChatGPT tokens": "true",
        "stored agent identity": "false",
        "stored auth mode": "chatgpt"
      },
      "remediation": null,
      "durationMs": 0
    },
    "config.load": {
      "id": "config.load",
      "category": "config",
      "status": "ok",
      "summary": "config loaded",
      "details": {
        "CODEX_HOME": "/Users/gyu/.codex",
        "active thread overrides": "not inspected",
        "config.toml": "/Users/gyu/.codex/config.toml",
        "config.toml parse": "ok",
        "configuration load ms": "8",
        "configuration scope": "invocation config, including cloud-managed policy",
        "cwd": "/Users/gyu",
        "enabled feature flags": "shell_tool, view_image, sleep_tool, unified_exec, unified_exec_tty, unified_exec_zsh_fork, shell_snapshot, content_item_kinds, code_mode_host, terminal_resize_reflow, sqlite, memories, hooks, enable_request_compression, unbounded_connection_retries, multi_agent, apps, tool_search_always_defer_mcp_tools, tool_suggest, plugins, in_app_browser, in_app_chat, in_app_dictation, in_app_local_automation, in_app_updates, browser_use, browser_use_full_cdp_access, browser_use_external, computer_use, remote_plugin, plugin_sharing, image_generation, resize_all_images, item_ids, skill_mcp_dependency_install, skill_search, mentions_v2, steer, guardian_approval, goals, collaboration_modes, tool_call_mcp_elicitation, auth_elicitation, personality, fast_mode, tui_app_server, remote_compaction_v2, compaction_image_budget, workspace_dependencies",
        "feature flag overrides": "memories=true",
        "feature flags enabled": "49",
        "log dir": "/Users/gyu/.codex/log",
        "mcp servers": "4",
        "model": "gpt-5.6-luna",
        "model provider": "openai",
        "sqlite home": "/Users/gyu/.codex"
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      "remediation": null,
      "durationMs": 0
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    "desktop.app.version": {
      "id": "desktop.app.version",
      "category": "desktop",
      "status": "ok",
      "summary": "the desktop application is installed",
      "details": {
        "log directory": "$HOME/Library/Logs/com.openai.codex",
        "running": "true",
        "version": "26.901.51231"
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      "remediation": null,
      "durationMs": 0
    },
    "desktop.app_server.handshake": {
      "id": "desktop.app_server.handshake",
      "category": "desktop",
      "status": "ok",
      "summary": "no desktop app-server handshake was recorded",
      "details": {},
      "remediation": null,
      "durationMs": 0
    },
    "desktop.security.enforcement": {
      "id": "desktop.security.enforcement",
      "category": "desktop",
      "status": "ok",
      "summary": "the desktop application passed available macos security assessments",
      "details": {
        "gatekeeper": "accepted"
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      "remediation": null,
      "durationMs": 0
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    "git.environment": {
      "id": "git.environment",
      "category": "git",
      "status": "ok",
      "summary": "git executable found; execution not verified",
      "details": {
        "PATH git #1": "/usr/bin/git",
        "PATH git entries": "1",
        "git execution": "not inspected (PATH helpers are not executed)",
        "repo detected": "false",
        "selected git": "/usr/bin/git"
      },
      "remediation": null,
      "durationMs": 0
    },
    "installation": {
      "id": "installation",
      "category": "install",
      "status": "ok",
      "summary": "installation looks consistent",
      "details": {
        "PATH codex #1": "/opt/homebrew/bin/codex",
        "current executable": "/opt/homebrew/bin/codex",
        "install context": "brew (package /opt/homebrew/Caskroom/codex/0.154.0, bin /opt/homebrew/Caskroom/codex/0.154.0/bin, resources /opt/homebrew/Caskroom/codex/0.154.0/codex-resources, path /opt/homebrew/Caskroom/codex/0.154.0/codex-path)",
        "managed by Vite+": "false",
        "managed by bun": "false",
        "managed by npm": "false",
        "managed by pnpm": "false",
        "managed package root": "not set"
      },
      "remediation": null,
      "durationMs": 1
    },
    "mcp.config": {
      "id": "mcp.config",
      "category": "mcp",
      "status": "ok",
      "summary": "MCP configuration is locally consistent",
      "details": {
        "configured servers": "4",
        "disabled servers": "1",
        "stdio servers": "3",
        "streamable_http servers": "1"
      },
      "remediation": null,
      "durationMs": 181
    },
    "network.env": {
      "id": "network.env",
      "category": "network",
      "status": "ok",
      "summary": "network-related environment looks readable",
      "details": {
        "managed proxy": "not configured",
        "proxy env vars": "none",
        "respect system proxy": "disabled",
        "system proxy": "direct"
      },
      "remediation": null,
      "durationMs": 0
    },
    "network.provider_reachability": {
      "id": "network.provider_reachability",
      "category": "reachability",
      "status": "ok",
      "summary": "active provider endpoints are reachable over HTTP",
      "details": {
        "ChatGPT inference URL": "https://chatgpt.com/backend-api/<redacted> reachable (HTTP 405)",
        "desktop assets CDN": "https://chatgpt.com/backend-api/<redacted> reachable (HTTP 200)",
        "reachability mode": "ChatGPT auth"
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      "remediation": null,
      "durationMs": 229
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    "network.websocket_reachability": {
      "id": "network.websocket_reachability",
      "category": "websocket",
      "status": "ok",
      "summary": "Responses WebSocket handshake succeeded",
      "details": {
        "DNS": "2 IPv4, 2 IPv6, first IPv4",
        "auth mode": "chatgpt",
        "connect timeout": "15000 ms",
        "endpoint": "wss://chatgpt.com/backend-api/<redacted>",
        "handshake result": "HTTP 101 Switching Protocols",
        "model provider": "openai",
        "provider name": "OpenAI",
        "proxy env vars": "none",
        "reasoning header": "false",
        "server model present": "false",
        "supports websockets": "true",
        "wire API": "responses"
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      "remediation": null,
      "durationMs": 729
    },
    "runtime.provenance": {
      "id": "runtime.provenance",
      "category": "runtime",
      "status": "ok",
      "summary": "running brew on macos-aarch64",
      "details": {
        "commit": "unknown",
        "current executable": "/opt/homebrew/bin/codex",
        "install method": "brew (package /opt/homebrew/Caskroom/codex/0.154.0, bin /opt/homebrew/Caskroom/codex/0.154.0/bin, resources /opt/homebrew/Caskroom/codex/0.154.0/codex-resources, path /opt/homebrew/Caskroom/codex/0.154.0/codex-path)",
        "platform": "macos-aarch64",
        "version": "0.154.0"
      },
      "remediation": null,
      "durationMs": 0
    },
    "runtime.search": {
      "id": "runtime.search",
      "category": "search",
      "status": "ok",
      "summary": "search command found (bundled); execution not verified",
      "details": {
        "search command": "/opt/homebrew/Caskroom/codex/0.154.0/codex-path/rg",
        "search command readiness": "file exists",
        "search provider": "bundled"
      },
      "remediation": null,
      "durationMs": 0
    },
    "sandbox.helpers": {
      "id": "sandbox.helpers",
      "category": "sandbox",
      "status": "ok",
      "summary": "sandbox configuration is readable",
      "details": {
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        "codex-linux-sandbox helper": "none",
        "denied-read glob rules": "0",
        "denied-read rules": "0",
        "execve wrapper helper": "/Users/gyu/.codex/tmp/arg0/codex-arg0GqYMnl/codex-execve-wrapper",
        "filesystem sandbox": "unrestricted",
        "glob scan max depth": "unbounded",
        "managed filesystem source": "none",
        "network sandbox": "enabled"
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      "remediation": null,
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    "security.endpoint": {
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      "category": "security",
      "status": "ok",
      "summary": "no supported endpoint protection detected",
      "details": {
        "endpoint products": "none detected"
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      "remediation": null,
      "durationMs": 116
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    "state.paths": {
      "id": "state.paths",
      "category": "state",
      "status": "ok",
      "summary": "state paths and databases are inspectable",
      "details": {
        "CODEX_HOME": "/Users/gyu/.codex (dir)",
        "active rollout files": "392 files, 2470832062 total bytes, 6303143 average bytes",
        "archived rollout files": "84 files, 277323381 total bytes, 3301468 average bytes",
        "goals DB": "/Users/gyu/.codex/goals_1.sqlite (file)",
        "goals DB integrity": "ok",
        "log DB": "/Users/gyu/.codex/logs_2.sqlite (file)",
        "log DB integrity": "ok",
        "log dir": "/Users/gyu/.codex/log (dir)",
        "memories DB": "/Users/gyu/.codex/memories_1.sqlite (file)",
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        "queue DB": "/Users/gyu/.codex/queue_1.sqlite (file)",
        "queue DB integrity": "ok",
        "sqlite home": "/Users/gyu/.codex (dir)",
        "state DB": "/Users/gyu/.codex/state_5.sqlite (file)",
        "state DB integrity": "ok",
        "thread history DB": "/Users/gyu/.codex/thread_history_1.sqlite (file)",
        "thread history DB integrity": "ok"
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      "remediation": null,
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    "state.rollout_db_parity": {
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      "details": {
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        "rollout DB sources": "cli=287, vscode=128, subagent:thread_spawn=59, subagent:other=1, subagent:review=1",
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        "warning threshold": "5.0 GiB",
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      "summary": "OS language ko-KR",
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    },
    "terminal.env": {
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      "summary": "terminal metadata was detected",
      "details": {
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          "/Applications/iTerm.app/Contents/Resources/terminfo (dir)",
          "/usr/share/terminfo (dir)"
        ],
        "TERM_PROGRAM": "iTerm.app",
        "color output": "enabled",
        "effective locale": "ko_KR.UTF-8",
        "stderr is terminal": "true",
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    "terminal.title": {
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      "status": "ok",
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      "details": {
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        "terminal title items": "activity, project-name",
        "terminal title project source": "cwd",
        "terminal title project value": "gyu",
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    },
    "updates.status": {
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      "status": "ok",
      "summary": "update configuration is locally consistent",
      "details": {
        "cached latest version": "0.153.4",
        "check for update on startup": "true",
        "dismissed version": "0.118.0",
        "last checked at": "2026-09-10T00:44:46.304779Z",
        "latest version": "0.154.0",
        "latest version status": "current version is not older",
        "update action": "brew upgrade --cask codex",
        "version cache": "/Users/gyu/.codex/version.json"
      },
      "remediation": null,
      "durationMs": 181
    }
  }
}

What issue are you seeing?

Shift+Enter is treated as Enter, and the message is immediately submitted instead of inserting a new line.
The issue occurs in both iTerm2 and the default macOS Terminal app, so it does not appear to be specific to a terminal emulator.

What steps can reproduce the bug?

1. Start Codex CLI.
2. Focus the prompt input.
3. Press Cmd+R.
4. Type a message.
5. Press Shift+Enter.

What is the expected behavior?

Shift+Enter should insert a new line without submitting the message.

Additional information

It seems that Cmd+R itself may be causing the issue. Could you please confirm?

Start by reproducing the shortcut sequence in Codex CLI 0.154.0 on macOS, using both iTerm2 and Terminal.app: press Cmd+R, then Shift+Enter. Trace the CLI's terminal input handling from that reproduction and confirm that Shift+Enter inserts a newline rather than submitting the message after Cmd+R.