Enum CognisError 

pub enum CognisError {
    Provider {
        provider: String,
        message: String,
    },
    RateLimited {
        retry_after_ms: u64,
    },
    AuthenticationFailed(String),
    Tool {
        name: String,
        reason: String,
    },
    ToolValidationError(String),
    Configuration(String),
    Network {
        status_code: Option<u16>,
        message: String,
    },
    Timeout {
        operation: String,
        timeout_ms: u64,
    },
    Cancelled,
    RecursionLimit {
        limit: u32,
    },
    GraphInterrupted {
        run_id: Uuid,
        step: u64,
        node: String,
        kind: InterruptKind,
    },
    Serialization(String),
    Internal(String),
}

All errors produced by cognis-core and downstream v2 crates.

Variants

Provider

Provider call failed (network, HTTP, parse, etc.).

Fields

provider: String

Provider identifier (e.g. “openai”, “ollama”).

message: String

Human-readable error message.

RateLimited

LLM provider rate-limited the request.

Fields

retry_after_ms: u64

Suggested retry delay in milliseconds.

AuthenticationFailed(String)

Authentication failed (bad API key, expired token, etc.).

Tool

Tool dispatch or execution failed.

Fields

name: String

Tool name.

reason: String

Failure reason.

ToolValidationError(String)

Tool argument failed validation.

Configuration(String)

Configuration is invalid or incomplete.

Network

Network / transport error.

Fields

status_code: Option<u16>

Optional HTTP status code.

message: String

Human-readable error message.

Timeout

Operation timed out.

Fields

operation: String

Operation name.

timeout_ms: u64

Timeout duration in milliseconds.

Cancelled

Operation was cancelled via RunnableConfig::cancel_token.

RecursionLimit

Graph engine ran past its recursion_limit.

Fields

limit: u32

The configured limit that was hit.

GraphInterrupted

Graph paused at a configured interrupt boundary. State is in the configured checkpointer; resume via CompiledGraph::resume.

Fields

run_id: Uuid

Run correlation ID. Pass to Checkpointer::load to recover state.

step: u64

Superstep at which the interrupt fired.

node: String

Node name that triggered the interrupt.

kind: InterruptKind

Whether the interrupt fired before or after the node’s execute.

Serialization(String)

Serialization or deserialization failed.

Internal(String)

Catch-all for unexpected errors.

Implementations

impl CognisError

pub fn category(&self) -> &'static str

Stable category string for telemetry / metrics filtering.

pub fn is_retryable(&self) -> bool

Whether retrying this error MAY succeed.

pub fn retry_delay(&self) -> Option<Duration>

Suggested retry delay, if the error type carries one.

Trait Implementations

impl Debug for CognisError

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

Formats the value using the given formatter.

impl Display for CognisError

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

Formats the value using the given formatter.

impl Error for CognisError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for CognisError

fn from(e: Error) -> Self

Converts to this type from the input type.