Struct AgentCard 

pub struct AgentCard {

    pub protocol_version: String,
    pub name: String,
    pub description: String,
    pub version: String,
    pub url: String,
    pub provider: Option<AgentProvider>,
    pub capabilities: Option<AgentCapabilities>,
    pub default_input_modes: Vec<String>,
    pub default_output_modes: Vec<String>,
    pub skills: Vec<AgentSkill>,
    pub security_schemes: Option<HashMap<String, Value>>,
    pub security: Option<Vec<HashMap<String, Vec<String>>>>,
    pub supports_authenticated_extended_card: Option<bool>,
    pub signatures: Option<Vec<AgentCardSignature>>,
}

Agent Card - metadata describing an A2A agent

Agent Cards are used for agent discovery. They are typically served at /.well-known/agent-card.json and describe the agent’s identity, capabilities, and security requirements.

Fields

protocol_version: String

The version of the A2A protocol supported

name: String

Agent name

description: String

Agent description

version: String

Agent version

url: String

The preferred endpoint URL for the agent’s A2A service

provider: Option<AgentProvider>

Organization/provider details

capabilities: Option<AgentCapabilities>

Features supported by this agent

default_input_modes: Vec<String>

Default supported input MIME types

default_output_modes: Vec<String>

Default supported output MIME types

skills: Vec<AgentSkill>

List of specific skills/capabilities

security_schemes: Option<HashMap<String, Value>>

Security schemes following OpenAPI specification

security: Option<Vec<HashMap<String, Vec<String>>>>

Security requirements

supports_authenticated_extended_card: Option<bool>

Whether a more detailed card is available post-authentication

signatures: Option<Vec<AgentCardSignature>>

JWS signatures for card verification

Implementations

impl AgentCard

pub fn new( name: impl Into<String>, description: impl Into<String>, version: impl Into<String>, ) -> Self

Create a new Agent Card with required fields

pub fn vtcode_default(url: impl Into<String>) -> Self

Create a default VT Code agent card

pub fn with_url(self, url: impl Into<String>) -> Self

Set the URL

pub fn with_provider(self, provider: AgentProvider) -> Self

Set the provider

pub fn with_capabilities(self, capabilities: AgentCapabilities) -> Self

Set the capabilities

pub fn add_skill(self, skill: AgentSkill) -> Self

Add a skill

pub fn supports_streaming(&self) -> bool

Check if streaming is supported

pub fn supports_push_notifications(&self) -> bool

Check if push notifications are supported

Trait Implementations

impl Clone for AgentCard

fn clone(&self) -> AgentCard

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AgentCard

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AgentCard

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for AgentCard

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

where __S: Serializer,

Serialize this value into the given Serde serializer.