Slash Commands

Command	Input	What it does
/exit	none	Exit Builder.
/new	none	Start a new session.
/resume	none	Return to the startup session picker.
/logout	none	Clear auth and run login again.
/compact <instructions>	optional free-form text	Compact the current context. Trailing text is passed through as compaction instructions.
/name <title>	optional free-form text	Set the session title. Empty input resets it.
/thinking <low|medium|high|xhigh>	optional single value	Set the thinking level. Empty input shows the current level.
/fast [on|off|status]	optional single value	Toggle or inspect Fast mode.
/supervisor [on|off]	optional single value	Toggle reviewer invocation.
/autocompaction [on|off]	optional single value	Toggle auto-compaction.
/status	none	Open a read-only status overlay with progressively loaded account, session, compact git, context, config, skills, disabled skill toggles, quota details, and a session-scoped server-ownership row when this CLI owns the server.
/ps [kill|inline|logs] <id>	optional action + id	Open the background-process picker, or manage a specific background shell.
/copy	none	Copy the latest committed model final answer to the system clipboard.
/back	none	Open the parent session when the current session was spawned from one.
/review <what to review>	optional free-form text	Use the built-in review prompt. In an empty session it submits in place; otherwise it starts a fresh child review session. Trailing text is appended to the prompt body.
/init <instructions>	optional free-form text	Use the built-in init prompt. In an empty session it submits in place; otherwise it starts a fresh child initialization session. Trailing text is appended to the prompt body.
/prompt:<name>	optional free-form text	Run a custom Markdown prompt discovered from disk.

Input Behavior

• While you are still typing the slash-command name, the picker keeps a selected best match.
• Enter runs the selected command immediately, even when the name is only partially typed.
• Tab on a partial command autocompletes the selected command and inserts a trailing space so you can continue with arguments.
• Tab on an exact known command uses the normal queued-input flow, so built-in, custom, and fresh-session commands all flush after the current turn finishes.
• The picker hides /copy until the current session has a committed final answer to copy.
• Unknown slash commands are still sent to the model as normal user prompts.

2. Built-In and Custom Prompts

Builder supports markdown file-backed custom prompt commands discovered from .builder/prompts or .builder/commands

• If the prompt body contains the exact token $ARGUMENTS, Builder replaces every occurrence with the trailing input.
• Otherwise, if trailing input was provided, Builder appends it to the end of the prompt body.

To add a custom prompt, create a Markdown file in one of these directories:

• <workspace>/.builder/prompts
• <workspace>/.builder/commands
• ~/.builder/prompts
• ~/.builder/commands

Discovery Rules

Custom commands are discovered with these rules:

1. Builder scans only top-level .md files in each prompt directory.
2. Nested directories are ignored.
3. The command id is derived from the filename as prompt:<normalized_base_name>.
4. Duplicate command ids are deduplicated by first match.
5. Discovery order is:
   1. <workspace>/.builder/prompts
   2. <workspace>/.builder/commands
   3. ~/.builder/prompts
   4. ~/.builder/commands