cli/slash-commands.md Codex Docs, 2026-03-18 00:36 UTC → 2026-04-08 00:40 UTC

8This guide shows you how to:8This guide shows you how to:

9 9 

10- Find the right built-in slash command for a task10- Find the right built-in slash command for a task

11- Steer an active session with commands like `/model`, `/personality`,11- Steer an active session with commands like `/model`, `/fast`,

12 `/permissions`, `/experimental`, `/agent`, and `/status`12 `/personality`, `/permissions`, `/agent`, and `/status`

13 13 

14## Built-in slash commands14## Built-in slash commands

15 15 

22| [`/sandbox-add-read-dir`](#grant-sandbox-read-access-with-sandbox-add-read-dir) | Grant sandbox read access to an extra directory (Windows only). | Unblock commands that need to read an absolute directory path outside the current readable roots. |22| [`/sandbox-add-read-dir`](#grant-sandbox-read-access-with-sandbox-add-read-dir) | Grant sandbox read access to an extra directory (Windows only). | Unblock commands that need to read an absolute directory path outside the current readable roots. |

23| [`/agent`](#switch-agent-threads-with-agent) | Switch the active agent thread. | Inspect or continue work in a spawned subagent thread. |23| [`/agent`](#switch-agent-threads-with-agent) | Switch the active agent thread. | Inspect or continue work in a spawned subagent thread. |

24| [`/apps`](#browse-apps-with-apps) | Browse apps (connectors) and insert them into your prompt. | Attach an app as `$app-slug` before asking Codex to use it. |24| [`/apps`](#browse-apps-with-apps) | Browse apps (connectors) and insert them into your prompt. | Attach an app as `$app-slug` before asking Codex to use it. |

25| [`/clear`](#clear-the-terminal-and-start-a-new-chat-with-clear) | Clear the terminal and start a fresh chat. | Reset the visible UI and conversation together when you want to start over. |25| [`/clear`](#clear-the-terminal-and-start-a-new-chat-with-clear) | Clear the terminal and start a fresh chat. | Reset the visible UI and conversation together when you want a clean slate. |

26| [`/compact`](#keep-transcripts-lean-with-compact) | Summarize the visible conversation to free tokens. | Use after long runs so Codex retains key points without blowing the context window. |26| [`/compact`](#keep-transcripts-lean-with-compact) | Summarize the visible conversation to free tokens. | Use after long runs so Codex retains key points without blowing the context window. |

27| [`/copy`](#copy-the-latest-response-with-copy) | Copy the latest completed Codex output. | Grab the latest finished response or plan text without manually selecting it. |27| [`/copy`](#copy-the-latest-response-with-copy) | Copy the latest completed Codex output. | Grab the latest finished response or plan text without manually selecting it. |

28| [`/diff`](#review-changes-with-diff) | Show the Git diff, including files Git isn't tracking yet. | Review Codex's edits before you commit or run tests. |28| [`/diff`](#review-changes-with-diff) | Show the Git diff, including files Git isn't tracking yet. | Review Codex's edits before you commit or run tests. |

34| [`/mcp`](#list-mcp-tools-with-mcp) | List configured Model Context Protocol (MCP) tools. | Check which external tools Codex can call during the session. |34| [`/mcp`](#list-mcp-tools-with-mcp) | List configured Model Context Protocol (MCP) tools. | Check which external tools Codex can call during the session. |

35| [`/mention`](#highlight-files-with-mention) | Attach a file to the conversation. | Point Codex at specific files or folders you want it to inspect next. |35| [`/mention`](#highlight-files-with-mention) | Attach a file to the conversation. | Point Codex at specific files or folders you want it to inspect next. |

36| [`/model`](#set-the-active-model-with-model) | Choose the active model (and reasoning effort, when available). | Switch between general-purpose models (`gpt-4.1-mini`) and deeper reasoning models before running a task. |36| [`/model`](#set-the-active-model-with-model) | Choose the active model (and reasoning effort, when available). | Switch between general-purpose models (`gpt-4.1-mini`) and deeper reasoning models before running a task. |

37| [`/fast`](#toggle-fast-mode-with-fast) | Toggle Fast mode for GPT-5.4. | Turn Fast mode on or off, or check whether the current thread is using it. |

37| [`/plan`](#switch-to-plan-mode-with-plan) | Switch to plan mode and optionally send a prompt. | Ask Codex to propose an execution plan before implementation work starts. |38| [`/plan`](#switch-to-plan-mode-with-plan) | Switch to plan mode and optionally send a prompt. | Ask Codex to propose an execution plan before implementation work starts. |

38| [`/personality`](#set-a-communication-style-with-personality) | Choose a communication style for responses. | Make Codex more concise, more explanatory, or more collaborative without changing your instructions. |39| [`/personality`](#set-a-communication-style-with-personality) | Choose a communication style for responses. | Make Codex more concise, more explanatory, or more collaborative without changing your instructions. |

39| [`/ps`](#check-background-terminals-with-ps) | Show experimental background terminals and their recent output. | Check long-running commands without leaving the main transcript. |40| [`/ps`](#check-background-terminals-with-ps) | Show experimental background terminals and their recent output. | Check long-running commands without leaving the main transcript. |

63 64 

64Expected: Codex confirms the new model in the transcript. Run `/status` to verify the change.65Expected: Codex confirms the new model in the transcript. Run `/status` to verify the change.

65 66 

67### Toggle Fast mode with `/fast`

68 

691. Type `/fast on`, `/fast off`, or `/fast status`.

702. If you want the setting to persist, confirm the update when Codex offers to save it.

71 

72Expected: Codex reports whether Fast mode is on or off for the current thread. In the TUI footer, you can also show a Fast mode status-line item with `/statusline`.

73 

66### Set a communication style with `/personality`74### Set a communication style with `/personality`

67 75 

68Use `/personality` to change how Codex communicates without rewriting your prompt.76Use `/personality` to change how Codex communicates without rewriting your prompt.

92### Toggle experimental features with `/experimental`100### Toggle experimental features with `/experimental`

93 101 

941. Type `/experimental` and press Enter.1021. Type `/experimental` and press Enter.

952. Toggle the features you want, then restart Codex.1032. Toggle the features you want (for example, Apps or Smart Approvals), then restart Codex if the prompt asks you to.

96 104 

97Expected: Codex saves your feature choices to config and applies them on restart.105Expected: Codex saves your feature choices to config and applies them on restart.

98 106 

209Expected: Codex starts a fresh conversation in the same CLI session, so you217Expected: Codex starts a fresh conversation in the same CLI session, so you

210can switch tasks without leaving your terminal.218can switch tasks without leaving your terminal.

211 219 

212Unlike `/clear`, `/new` doesn’t clear the current terminal view first.220Unlike `/clear`, `/new` does not clear the current terminal view first.

213 221 

214### Resume a saved conversation with `/resume`222### Resume a saved conversation with `/resume`

215 223