Enum ErrorCategory 

pub enum ErrorCategory {
    InvalidInput,
    Unauthorized,
    Forbidden,
    NotFound,
    RateLimited,
    Timeout,
    Unavailable,
    Cancelled,
    Internal,
    Unsupported,
}

Core traits and types.

Always available regardless of feature flags. Includes:

• Agent - The fundamental trait for all agents
• Tool / Toolset - For extending agents with capabilities
• Session / State - For managing conversation context
• Event - For streaming agent responses
• AdkError / Result - Unified error handling The kind of failure independent of subsystem.

Choose the variant that best describes what went wrong:

• InvalidInput — caller provided bad data (config, request body, parameters)
• Unauthorized — missing or invalid credentials
• Forbidden — valid credentials but insufficient permissions
• NotFound — requested resource does not exist
• RateLimited — upstream rate limit hit (retryable by default)
• Timeout — operation exceeded time limit (retryable by default)
• Unavailable — upstream service temporarily down (retryable by default)
• Cancelled — operation was cancelled by caller or system
• Internal — unexpected internal error (bugs, invariant violations)
• Unsupported — requested feature or operation is not supported

Variants

InvalidInput

Caller provided bad data (config, request body, parameters).

Unauthorized

Missing or invalid credentials.

Forbidden

Valid credentials but insufficient permissions.

NotFound

Requested resource does not exist.

RateLimited

Upstream rate limit hit (retryable by default).

Timeout

Operation exceeded time limit (retryable by default).

Unavailable

Upstream service temporarily down (retryable by default).

Cancelled

Operation was cancelled by caller or system.

Internal

Unexpected internal error (bugs, invariant violations).

Unsupported

Requested feature or operation is not supported.

Trait Implementations

impl Clone for ErrorCategory

fn clone(&self) -> ErrorCategory

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ErrorCategory

impl Debug for ErrorCategory

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ErrorCategory

fn deserialize<__D>( __deserializer: __D, ) -> Result<ErrorCategory, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ErrorCategory

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

Formats the value using the given formatter.

impl Eq for ErrorCategory

impl Hash for ErrorCategory

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ErrorCategory

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ErrorCategory

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ErrorCategory