Actions

Actions are the compositor’s verbs. Bind one under [keybinds], attach it to a hot corner, or run it with umbriel msg <action>. umbriel msg --help prints this same list, with the same wording and the same grouping. See Keybinds for chord syntax and IPC for the socket behind umbriel msg, including the event stream that reports what an action changed.

Argument forms

An action takes at most one argument, appended after a colon. <angle> forms are required, [bracket] forms are optional.

Form	Meaning
<cmd>	Command line, run through the shell: spawn:kitty
<name>	Submap to enter; submap:reset leaves one level
<workspace>[/<output>]	Bare digits select a 1-based position, other text selects a name, and double quotes force a name; append /output to scope either form
<output>	Connector or monitor name from umbriel outputs
<window-id>	Window id from umbriel windows
[<window-id>]	The same id; the bare action targets the focused window
[<output>]	Connector or monitor name. Bare dpms-off and dpms-on target every configured output
[<scratchpad>]	Scratchpad name. The bare form selects the implicit default scratchpad, which exists only when no named scratchpads are configured
<fraction>	0.1 to 1.0 of the column extent, or of the usable area for a floating window
<delta>	Signed -0.9 to 0.9; the result clamps to 0.1 to 1.0
<nits>[/<output>]	SDR reference white in cd/m2, 80 to 1000; append /output to select one output, otherwise the preferred output
<scrolling|dwindle|master|floating|toggle[:mode1,mode2,...]>	Layout mode for workspace-set-layout; toggle cycles scrolling, dwindle, master, floating; toggle:mode1,mode2,... cycles only the listed modes (two or more, each once) in order, switching to the first from an unlisted mode, as in toggle:scrolling,master
<normal|tabbed>	How column-set-display shows the rows around the focused window: stacked, or as a tab group
<index>	Tab position for column-focus-tab, counted from 1 within the focused tab group; negative counts back from the last tab, -1
[skip-confirmation]	session-quit only: quit without the on-screen confirmation
<anchor>/<x>/<y>[/<window-id>]	window-move-to only: an anchor from Floating position and signed offsets in logical pixels. Right and bottom anchors measure inward from those edges; the result is kept inside the usable area
<delta-x>/<delta-y>[/<window-id>]	window-move-by only: signed offsets in logical pixels from the current position, kept inside the usable area

Effect set and cycle split at the first /; everything after it is the window id or output name. For example, effect-screen-set:cinema/vendor/panel selects cinema on output vendor/panel, and effect-window-cycle:/window-id cycles that window’s current pool. Omit the target for the focused window or preferred output. Cursor actions take no target. A trailing colon or slash is invalid. off is accepted only by set.

Named set and successful cycle create a runtime override and clear suppression. set:off and toggle suppress without forgetting the selected member; reset clears the override, suppression, and history, then resolves configuration. An unnamed cycle needs an underlying pool; an empty pool cannot cycle. See Effects for selection and owner lifetimes.

Apps

Action	Effect
spawn:<cmd>	Run a command with a launch activation token

Screencasting

Select one screen or window normally. The selected source starts sharing immediately, and the actions below can later change it while keeping the same PipeWire stream alive. Shares containing several selected sources remain fixed.

The first set or follow action during an active share opens an Umbriel confirmation panel. Enter, or repeat a target-changing action, to approve it. Any other key or pointer click dismisses the panel and cancels only that pending action. A later action asks again. Once approved, target changes are immediate until the share ends. Set screencast.disable_dynamic_confirmation to true to skip this protection.

Changing a window stream to an output, or an output stream to a window, is supported. Follow mode lasts only for the active portal session. Be careful with window following because focusing a private window immediately shares it.

Action	Effect
screencast-clear	Pause the screencast and stop following
screencast-follow-output	Follow the focused output
screencast-follow-stop	Stop following and keep the current target
screencast-follow-window	Follow the focused window
screencast-set-output:[<output>]	Share the focused output, or the selected output
screencast-set-window:[<window-id>]	Share the focused window, or the selected window

Focus

Action	Effect
column-focus-first	Focus the first column in the workspace
column-focus-last	Focus the last column in the workspace
column-focus-tab:<index>	Focus a tab of the focused tab group by its position
column-focus-tab-next	Focus the next tab in the focused tab group
column-focus-tab-previous	Focus the previous tab in the focused tab group
output-focus-down	Focus the output below
output-focus-left	Focus the output to the left
output-focus-next	Focus the next output, wrapping around
output-focus-previous	Focus the previous output, wrapping around
output-focus-right	Focus the output to the right
output-focus-up	Focus the output above
window-focus:<window-id>	Focus a window, revealing it from a hidden scratchpad
window-focus-down	Focus the next window down in the column
window-focus-last	Focus the previously focused window
window-focus-left	Focus the window to the left
window-focus-next	Focus the next window in layout order
window-focus-or-output-down	Focus down, or the output below at the edge
window-focus-or-output-left	Focus left, or the output left at the edge
window-focus-or-output-right	Focus right, or the output right at the edge
window-focus-or-output-up	Focus up, or the output above at the edge
window-focus-or-workspace-down	Focus down, or the next workspace at the edge
window-focus-or-workspace-up	Focus up, or the previous workspace at the edge
window-focus-previous	Focus the previous window in layout order
window-focus-right	Focus the window to the right
window-focus-switch-floating	Focus the last window of the opposite floating state
window-focus-up	Focus the next window up in the column
window-focus-warp:<window-id>	Focus or reveal a window and warp the cursor to it
workspace-focus-last	Focus the previously active workspace

Move & size

Sizing rules per layout live in Sizing behavior.

Action	Effect
column-center	Center the focused column in the viewport
column-move-left	Move the focused column one position left
column-move-right	Move the focused column one position right
column-move-to-first	Move the focused column to the first position
column-move-to-last	Move the focused column to the last position
column-move-to-output-down	Move the focused column to the output below
column-move-to-output-left	Move the focused column to the output left
column-move-to-output-right	Move the focused column to the output right
column-move-to-output-up	Move the focused column to the output above
layout-master-count-decrease	Demote the last master window to the stack
layout-master-count-increase	Promote the first stack window to master
layout-scroll-down	Scroll the strip toward its end
layout-scroll-drag	Pan the strip while the bound button is held
layout-scroll-left	Scroll the strip toward its start
layout-scroll-right	Scroll the strip toward its end
layout-scroll-up	Scroll the strip toward its start
layout-toggle-split	Toggle the focused tile’s dwindle split direction
window-center	Center the focused floating window on its output
window-consume-from-left	Pull the left column’s window into the focused column
window-consume-from-right	Pull the right column’s window into the focused column
window-consume-left	Stack the focused window into the column left
window-consume-or-expel-left	Split the window out, or stack it into the column left
window-consume-or-expel-right	Split the window out, or stack it into the column right
window-consume-right	Stack the focused window into the column right
window-cycle-primary-extent	Cycle the focused area’s primary extent through presets
window-cycle-primary-extent-back	Cycle the primary extent presets in reverse
window-cycle-secondary-extent	Cycle the focused area’s secondary extent through presets
window-cycle-secondary-extent-back	Cycle the secondary extent presets in reverse
window-modify-height-down:<delta>	Resize the focused window from its bottom edge
window-modify-height-up:<delta>	Resize the focused window from its top edge
window-modify-primary-extent:<delta>	Change the focused area’s primary extent by a fraction
window-modify-secondary-extent:<delta>	Change the focused area’s secondary extent by a fraction
window-modify-width-left:<delta>	Resize the focused column from its left edge
window-modify-width-right:<delta>	Resize the focused column from its right edge
window-move-by:<delta-x>/<delta-y>[/<window-id>]	Move the floating window by logical pixels
window-move-down	Move down in its column, or a float to the bottom edge
window-move-left	Move the focused window left, or a float to the left edge
window-move-or-output-down	Move down, or the column to the output below
window-move-or-output-left	Move the column left, or to the output left
window-move-or-output-right	Move the column right, or to the output right
window-move-or-output-up	Move up, or the column to the output above
window-move-or-workspace-down	Move down, or to the next workspace at the edge
window-move-or-workspace-up	Move up, or to the previous workspace at the edge
window-move-right	Move the focused window right, or a float to the right edge
window-move-to:<anchor>/<x>/<y>[/<window-id>]	Move the floating window to an anchored position
window-move-to-output-down	Move the focused window to the output below
window-move-to-output-left	Move the focused window to the output left
window-move-to-output-next	Move the focused window to the next output
window-move-to-output-previous	Move the focused window to the previous output
window-move-to-output-right	Move the focused window to the output right
window-move-to-output-up	Move the focused window to the output above
window-move-up	Move up in its column, or a float to the top edge
window-set-primary-extent:<fraction>	Set the focused area’s primary extent fraction
window-set-secondary-extent:<fraction>	Set the focused area’s secondary extent fraction
window-snap:<left|right|top|bottom|top_left|top_right|bottom_left|bottom_right>	Snap the floating window, or restore it when already there
window-unsnap	Restore the floating window’s size before snapping
window-swap-down	Swap with the window below
window-swap-left	Swap with the window to the left
window-swap-next	Swap with the next window in layout order
window-swap-previous	Swap with the previous window in layout order
window-swap-right	Swap with the window to the right
window-swap-up	Swap with the window above

window-snap works on ordinary floating windows in any layout. It rejects tiled, fullscreen, pinned, and scratchpad windows, and regions smaller than the client’s minimum size. Repeating the same region restores the normal box. Maximize and fullscreen preserve the snap placement; manual movement or resizing ends it.

Windows

window-toggle-floating requires a tiling layout. Windows in a floating layout already float and cannot be tiled individually.

Action	Effect
column-hide-tab-bar	Hide the focused tab group’s bar; its tabs take the space
column-move-tab-next	Move the focused tab one place later among its tabs
column-move-tab-previous	Move the focused tab one place earlier among its tabs
column-set-display:<normal|tabbed>	Show the rows around the focused window as tabs or stacked
column-show-tab-bar	Show the focused tab group’s bar
column-toggle-tab-bar	Show or hide the focused tab group’s bar
column-toggle-tabbed	Tab the rows around the focused window, or stack its tabs
window-close:[<window-id>]	Close the focused window, or the given window
window-kill:[<window-id>]	Kill the process owning the focused or given window
window-minimize:[<window-id>]	Minimize the focused floating window, or the given window
window-restore-minimized	Restore the latest minimized window on this workspace
window-toggle-floating:[<window-id>]	Float or tile the focused window, or the given window
window-toggle-fullscreen	Toggle fullscreen or exit a window covering the focus
window-toggle-maximize	Toggle full width for the focused column
window-toggle-maximize-to-edges	Toggle maximize without gaps, struts, or borders
window-toggle-pinned	Pin the focused window above other windows

Which windows minimize and how they come back is described in Minimize.

window-close asks the application to close a window. window-kill sends SIGKILL to the process owning the window, even if it ignores close requests. This terminates all windows owned by that process and can lose unsaved work. If the client PID is unavailable, the action returns an error.

No window ID is needed: a bare window-kill targets the focused window, including a focused scratchpad window. For example:

[keybinds]
"Mod+Shift+Q" = { action = "window-kill", repeat = false }

Use umbriel msg window-kill from a terminal, or append :<window-id> to target a specific window using an ID from umbriel windows.

For Xwayland windows, fullscreen entered with window-toggle-fullscreen remains compositor-owned until an Umbriel action exits it. Fullscreen entered by the application remains client-controlled.

Scratchpad

Scratchpads are global named holding areas that roam between outputs. Scratchpads covers their configuration, restoration rules, and multi-output behavior.

Action	Effect
scratchpad-focus-next:[<scratchpad>]	Focus the next visible scratchpad window
scratchpad-toggle:[<scratchpad>]	Show or hide the selected scratchpad windows
scratchpad-window-show-next:[<scratchpad>]	Show only the next scratchpad window
scratchpad-window-show-previous:[<scratchpad>]	Show only the previous scratchpad window
window-move-to-scratchpad:[<scratchpad>]	Move the focused window into a scratchpad
window-restore-from-scratchpad:[<scratchpad>]	Return a scratchpad window to its saved workspace
window-toggle-scratchpad:[<scratchpad>]	Move the focused window to or from a scratchpad

Workspaces

Selector resolution, including forced numeric names and /output qualifiers, is described in Workspace selectors.

Action	Effect
column-move-to-workspace:<workspace>[/<output>]	Move the focused column to the selected workspace
column-move-to-workspace-next	Move the focused column to the next workspace
column-move-to-workspace-previous	Move the focused column to the previous workspace
window-move-to-workspace:<workspace>[/<output>]	Move the focused window to the selected workspace
window-move-to-workspace-next	Move the focused window to the next workspace
window-move-to-workspace-previous	Move the focused window to the previous workspace
window-move-to-workspace-silent:<workspace>[/<output>]	Move the focused window to the selected workspace silently
window-move-to-workspace-silent-next	Move the focused window to the next workspace silently
window-move-to-workspace-silent-previous	Move the focused window to the previous workspace silently
workspace-move-down	Move the focused workspace down the list
workspace-move-to-output-down	Move every workspace window to the output below
workspace-move-to-output-left	Move every workspace window to the output left
workspace-move-to-output-right	Move every workspace window to the output right
workspace-move-to-output-up	Move every workspace window to the output above
workspace-move-up	Move the focused workspace up the list
workspace-next	Switch to the next workspace on this output
workspace-previous	Switch to the previous workspace on this output
workspace-set-layout:<scrolling|dwindle|master|floating|toggle[:mode1,mode2,...]>	Set the active workspace’s layout mode
workspace-swap-active-output-down	Swap active workspace windows with the output below
workspace-swap-active-output-left	Swap active workspace windows with the output left
workspace-swap-active-output-next	Swap active workspace windows with the next output
workspace-swap-active-output-previous	Swap active workspace windows with the previous output
workspace-swap-active-output-right	Swap active workspace windows with the output right
workspace-swap-active-output-up	Swap active workspace windows with the output above
workspace-switch:<workspace>[/<output>]	Switch to the selected workspace
workspace-toggle-show-desktop	Minimize or restore the workspace’s floating windows

Overview

Dragging windows between previews and creating workspaces by dropping into a gap are described in Overview.

Action	Effect
overview-close	Close the workspace overview
overview-open	Open the workspace overview
overview-toggle	Open or close the workspace overview

System

Action	Effect
cheatsheet-close	Hide the keybind cheatsheet
cheatsheet-open	Show the keybind cheatsheet
cheatsheet-toggle	Show or hide the keybind cheatsheet
config-reload	Reload the configuration file
cursor-hide	Hide the cursor until pointer activity
cursor-show	Show the cursor and restart its inactivity timeout
dpms-off:[<output>]	Power off one output, or every output when bare
dpms-on:[<output>]	Power on one output, or every output when bare
effect-border-cycle:[<pool>][/<window-id>]	Cycle the current or named border pool
effect-border-reset:[<window-id>]	Clear runtime state and resolve configuration
effect-border-set:<name>[/<window-id>]	Select a border preset/pool, or suppress with off
effect-border-toggle:[<window-id>]	Toggle border-slot suppression
effect-cursor-cycle:[<pool>]	Cycle the current or named cursor pool
effect-cursor-reset	Clear runtime state and resolve configuration
effect-cursor-set:<name>	Select a cursor preset/pool, or suppress with off
effect-cursor-toggle	Toggle cursor-slot suppression
effect-screen-cycle:[<pool>][/<output>]	Cycle the current or named screen pool
effect-screen-reset:[<output>]	Clear runtime state and resolve configuration
effect-screen-set:<name>[/<output>]	Select a screen preset/pool, or suppress with off
effect-screen-toggle:[<output>]	Toggle screen-slot suppression
effect-window-cycle:[<pool>][/<window-id>]	Cycle the current or named window pool
effect-window-reset:[<window-id>]	Clear runtime state and resolve configuration
effect-window-set:<name>[/<window-id>]	Select a window preset/pool, or suppress with off
effect-window-toggle:[<window-id>]	Toggle window-slot suppression
keyboard-layout-next	Switch one keyboard to its next configured layout
output-disable:<output>	Remove an output from the desktop
output-enable:<output>	Add an output to the desktop
output-sdr-white:<nits>[/<output>]	Set an output’s live SDR reference white in cd/m2
output-toggle:<output>	Add or remove an output from the desktop
session-quit:[skip-confirmation]	Quit the session, confirming first unless told to skip
shortcuts-inhibit-toggle	Toggle shortcuts inhibition for the focused surface
submap:<name>	Enter a submap layer, or leave one with ‘reset’

Layout differences

Column and extent actions adapt to the active layout:

Action group	Scrolling	Dwindle	Master
Column movement	Reorders columns	Same as window left/right	Exchanges master and stack contents
Window left/right	Expels the window or stacks it into the neighboring column; moves it along its lane in a vertical strip	Moves the window into the neighboring tile	Moves between master and stack
Consume and expel	Joins or splits columns	Swaps directional neighbors	Moves between master and stack
Primary extent	Changes column width	Adjusts horizontal splits	Changes master fraction
Secondary extent	Changes a row	Adjusts vertical splits	Changes a row
Layout scrolling	Pans the strip	No effect	No effect
Master count	No effect	No effect	Moves a window between master and stack
Toggle split	Refused	Flips the focused tile’s split between side by side and stacked	Refused
Tabs	Tabs the focused column	Refused	Tabs the focused master or stack area

See Layout for geometry, directions, and resizing behavior.

Notes

• Output direction actions do not wrap. The next and previous variants do.
• Workspace next, previous, move-up, and move-down do not wrap.
• A whole-column move preserves order, proportions, and column extent. Between scrolling workspaces, it also preserves tab groups, their selected tabs, and individual tab-bar visibility overrides.
• Moving a multi-window column into Dwindle creates separate tiles.
• column-focus-tab-next and column-focus-tab-previous wrap unless layout.tabs.wrap_focus is off. In the scrolling layout a tab group is one row of its column: window-focus-up and window-focus-down step over it, and window-move-up and window-move-down take a tab out of it or a window into it. In a tabbed master area they step through its tabs without wrapping.
• Floating and pinned behavior is described in Layout and Scratchpads.
• An action unavailable in the active layout does nothing from a keybind and returns an explanatory error through umbriel msg.
• spawn: supplies an activation token and records the pointer-preferred output and its active workspace. The launched application’s first window opens there even if you switch workspaces while it starts. Opening on a workspace you left is silent, and explicit default_output, default_workspace, and default_scratchpad window rules take precedence. focus_on_activate controls whether an activation request focuses the window, not the recorded launch destination. Autostart commands do not receive a token or recorded placement.
• Bare session-quit asks for confirmation. Use session-quit:skip-confirmation only when an immediate exit is intended.