Slash command
Attach a file or folder to the conversation via popup picker so Codex references it directly in the next turn.
Syntax
/mention <path>Example
/mention src/lib/api.tsplanning
Switch to plan mode and optionally send a prompt. Codex proposes an execution plan before implementation starts.
session-management
Fork the current conversation into a new thread with a fresh ID, leaving the original transcript untouched for parallel exploration.
configuration
Choose the active model (and reasoning effort when available). Opens a picker; press s to switch for the current session only.
setup
Generate an AGENTS.md scaffold in the current directory for persistent repo instructions.
diagnostics
Display session configuration and token usage — active model, approval policy, writable roots, and context capacity.
configuration
Browse and use local skills to improve task-specific behavior by loading relevant skill context.