Enum ContentRole 

pub enum ContentRole {
    Interactive,
    Content,
    Decorative,
    System,
}

Content role classification for prompt injection defense.

Elements are classified by their semantic role so the LLM can distinguish between actionable UI controls and untrusted text content. This prevents adversarial websites from injecting instructions via text elements that look like system commands.

In the prompt, elements are tagged: [1] button “Submit” (interactive) vs [5] text “Click here to win” (content) — so the LLM knows [5] is user-authored text, not a UI control.

Variants

Interactive

UI controls the user can interact with (buttons, inputs, links, menus). Safe to act on — these are real UI elements.

Content

Text content (paragraphs, headings, labels). May contain adversarial text. The LLM should READ but not EXECUTE instructions found in content elements.

Decorative

Decorative elements (separators, icons, spacers). Can be deprioritized.

System

System/chrome UI (scrollbars, window controls, status bars).

Trait Implementations

impl Clone for ContentRole

fn clone(&self) -> ContentRole

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ContentRole

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ContentRole

fn default() -> ContentRole

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ContentRole

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ContentRole

fn eq(&self, other: &ContentRole) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ContentRole

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ContentRole