Struct MetaExtension 

pub struct MetaExtension {
    pub entity_type: Option<String>,
    pub entity_name: Option<String>,
    pub tags: HashSet<String>,
    pub scope: Option<String>,
    pub properties: HashMap<String, String>,
}

Host-provided operational metadata.

Carries entity identification (type + name) for route resolution, operational tags for policy group inheritance, scope for host-defined grouping, and arbitrary properties.

Immutable — set by the host before invoking the hook. Plugins can read but not modify.

Fields

entity_type: Option<String>

Entity type: “tool”, “resource”, “prompt”, “llm”. Used by the manager for route resolution.

entity_name: Option<String>

Entity name: “get_compensation”, “hr://employees/*”, etc. Used by the manager for route resolution.

tags: HashSet<String>

Operational tags — drive policy group inheritance. Merged with static tags from the matching route’s meta.tags.

scope: Option<String>

Host-defined grouping (virtual server ID, namespace, etc.).

properties: HashMap<String, String>

Arbitrary key-value metadata.

Trait Implementations

impl Clone for MetaExtension

fn clone(&self) -> MetaExtension

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetaExtension

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

Formats the value using the given formatter.

impl Default for MetaExtension

fn default() -> MetaExtension

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MetaExtension

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for MetaExtension

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

where __S: Serializer,

Serialize this value into the given Serde serializer.