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Codex Command MasterLabels and command selectionHow to read a detail guideComplete command listTerminal CLI Commands and Options

Task guides

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Conversation and context

Cmd. /clearCmd. /renameCmd. /archiveCmd. /deleteCmd. /compactCmd. /copyCmd. /memoriesCmd. /importCmd. /initCmd. /mentionCmd. /forkCmd. /sideCmd. /resumeCmd. /newCmd. /cdCmd. /exportCmd. /recap

Planning and execution

Cmd. /planCmd. /goalCmd. /psCmd. /stopCmd. /app

Review and verification

Cmd. /review

Models and settings

Cmd. /modelCmd. /fast

Permissions and integrations

Cmd. /permissionsCmd. /ideCmd. /setup-default-sandboxCmd. /sandbox-add-read-dirCmd. /pluginsCmd. /hooksCmd. /approveCmd. /skillsCmd. /mcp

Status and diagnostics

Cmd. /agentCmd. /appsCmd. /diffCmd. /feedbackCmd. /personalityCmd. /rawCmd. /statusCmd. /debug-configCmd. /title

Display and input

Cmd. /keymapCmd. /vimCmd. /experimentalCmd. /statuslineCmd. /themeCmd. /petsCmd. /voiceCmd. /worktree

Account and usage

Cmd. /exitCmd. /logoutCmd. /quitCmd. /usage

Legacy

Cmd. /approvals

Verification and history

Current verification scopeHandbook updatesRelease coverage historyEarlier verification recordsCommand change history
Handbook›Codex Command Master›Cmd. /side
한국어English

Cmd. /side

Start an ephemeral side conversation from the current thread.

Key takeaways

  • Start an ephemeral side conversation from the current thread.
  • Check the input surface and availability before using the examples below.

Purpose

Start an ephemeral side conversation from the current thread.

/side

Availability

FieldValue
Input surfaceRunning CLI prompt
KindBuilt-in
StatusCurrent reference
Aliases/btw
Documented minimumNot specified
Reviewed against2026-09-22 · Codex CLI 0.155.1

The installed command menu and account or organization settings determine availability.

Examples

/side

When to use it

  1. Use /side Check whether this plan has an obvious risk for a short independent critique.
  2. Ask a policy or documentation question without polluting the main transcript.
  3. Let the human decide whether the side result should influence the parent thread.

Choosing related commands

CommandDifferenceChoose It When
/sideTemporary side conversationYou need a short detour
/forkNew longer-lived threadYou need alternate implementation work
/agentSwitches to a spawned agent threadYou need to inspect an existing agent

Effects and persistence

Handles a side question separately from the main task flow.

/side (/btw) starts a focused side conversation without switching the main task away from the parent thread.

Cautions

  • You cannot open /side from inside another side conversation.
  • /side is unavailable in review mode.
  • Use /fork for longer alternate implementations.

Official sources

  • Developer Commands
  • Changelog

Complete command list · Verification scope · History for this command

Related docs

Cmd. /fork

Branch the current conversation into a new thread.

Cmd. /agent

Switch between spawned Codex subagent threads to inspect each agent transcript, status, model, and reasoning effort before merging their work.

Cmd. /export

Claude Code Command Master · Copy or save the current conversation as plain text.

Cmd. /fork

Claude Code Command Master · Copy the conversation into a new background session.

Cmd. /release-notes

Claude Code Command Master · Displays selected release notes in the transcript without adding them to model conversation context.

Cmd. /fork

Branch the current conversation into a new thread.

Cmd. /resume

Reopen the saved-session picker to continue earlier Codex work across interruptions, remote app-server sessions, and large multi-thread task histories.

On this page

PurposeAvailabilityExamplesWhen to use itChoosing related commandsEffects and persistenceCautionsOfficial sources