Generic Keyvalues, Inputs and Outputs/Inputs

Inputs

AddOutput <string>

Assigns a new keyvalue/output on this entity. For keyvalues, some rely on extra necessary code to be ran and won't work if its simply just changed through this input.
Format: <key> <value>
Format: <output name> <target>:<input name>:<parameter>:<delay>:<max times to fire, -1 means infinite>

Kill

Removes this entity and any entities parented to it from the world.

FireUser1 to FireUser4

Fires the respectiveOnUseroutputs; see User Inputs and Outputs.

SetDamageFilter <targetname>

Sets a filter for this entity for when it receives damage.

Parenting

SetParent <string>

Move with this entity. See Entity Hierarchy (parenting).

SetParentAttachment <string>

Change this entity to attach to a specific attachment point on its parent. The entity will teleport so that the position of its root bone matches that of the attachment. Entities must be parented before being sent this input.

SetParentAttachmentMaintainOffset <string>

As above, but without teleporting. The entity retains its position relative to the attachment at the time of the input being received.

ClearParent

Removes this entity from the movement hierarchy, leaving it free to move independently.

KillHierarchy

Functions the same as Kill, although this entity and any entities parented to it are killed on the same frame, being marginally faster thanKillinput.

Vscript

RunScriptFile <script> (in all games since ) (also in )

Execute a VScript file from disk, without file extension. The script contents are merged with the script scope of the receiving entity.

RunScriptCode <string> (in all games since ) (also in )

Execute a string of VScript source code in the scope of the entity receiving the input. String quotation may be needed when fired via console.

CallScriptFunction <string> (in all games since ) (also in ) !FGD

Calls a VScript function defined in the scope of the receiving entity.

TerminateScriptScope  (only in ) !FGD

Destroys the script scope of the receiving entity.

Context

AddContext <string>

Adds to the entity's list of response contexts. See Context.

ClearContext

Removes all contexts from this entity's list.

RemoveContext <string>

Remove a context from this entity's list. The name should match the key of an existing context.

Rendering

RenderFields:

Alpha <integer 0–255>

Sets the entity's transparency to a number from 0 (invisible) to 255 (fully visible). Requires the entity to have its rendermode set to a number other than 0.

Color <color255>

Sets an RGB color for the entity.

Shadow:

DisableShadow

Turn dynamic shadows off for this entity. Identical to applying  EF_NOSHADOW.

EnableShadow

Turn dynamic shadows on for this entity.

DisableReceivingFlashlight  (in all games since )

This object will not receive light or shadows from projected textures.

EnableReceivingFlashlight  (in all games since )

This object may receive light or shadows from projected textures.

Miscellaneous

Use  !FGD Same as a player invoking +use; no effect in most cases. SetTeam <integer> !FGD Changes this entity's team. TeamNum <integer> !FGD This input changes value for TeamNum property. DispatchResponse <string> !FGD Dispatches a response to the entity. See Response and Concept. DispatchEffect <string> (removed since ) !FGD Dispatches a special effect from the entity's origin; See also List of Client Effects. Replaced by the particle system since . SetLocalOrigin <coordinates> (in all games since ) !FGD Send this entity to a spot in the map. If the entity is parented to something, it will be offset from the parent by this amount. SetLocalAngles <angles> (in all games since ) !FGD Set this entity's angles.