agent-plugin-error-handling / Exports / ErrorHandlingPlugin

Class: ErrorHandlingPlugin

Provides configurable error recovery using one of four strategies: simple logging, circuit breaker, exponential backoff, or silent.

The circuit breaker opens after failureThreshold consecutive failures and automatically resets after circuitBreakerTimeout ms. An optional custom error handler can be injected for application-specific recovery logic.

See

• IErrorHandlingPluginOptions - configuration options
• IErrorHandlingContextData - error context contract

Example

const plugin = new ErrorHandlingPlugin({
  strategy: 'circuit-breaker',
  failureThreshold: 5,
  circuitBreakerTimeout: 60000,
});
const result = await plugin.executeWithRetry(() => fetchData());

Hierarchy

• AbstractPlugin<IErrorHandlingPluginOptions, IErrorHandlingPluginStats>

  ↳ ErrorHandlingPlugin

Table of contents

Constructors

• constructor

Properties

• enabled
• category
• priority
• name
• version

Methods

• initialize
• subscribeToModuleEvents
• unsubscribeFromModuleEvents
• dispose
• enable
• disable
• isEnabled
• getConfig
• updateConfig
• getData
• clearData
• getStatus
• beforeRun
• afterRun
• beforeExecution
• afterExecution
• beforeConversation
• afterConversation
• beforeToolCall
• beforeToolExecution
• afterToolCall
• afterToolExecution
• beforeProviderCall
• afterProviderCall
• onStreamingChunk
• onError
• onMessageAdded
• onModuleEvent
• handleError
• executeWithRetry
• resetCircuitBreaker
• getStats
• destroy

Constructors

constructor

• new ErrorHandlingPlugin(options): ErrorHandlingPlugin

Parameters

Name	Type
options	IErrorHandlingPluginOptions

Returns

ErrorHandlingPlugin

Overrides

AbstractPlugin&lt; IErrorHandlingPluginOptions, IErrorHandlingPluginStats &gt;.constructor

Defined in

agent-plugin-error-handling/src/error-handling-plugin.ts:64

Properties

enabled

• enabled: boolean

Inherited from

AbstractPlugin.enabled

Defined in

agent-core/dist/node/index.d.ts:1049

---

category

• category: PluginCategory

Inherited from

AbstractPlugin.category

Defined in

agent-core/dist/node/index.d.ts:1050

---

priority

• priority: number

Inherited from

AbstractPlugin.priority

Defined in

agent-core/dist/node/index.d.ts:1051

---

name

• name: string = 'ErrorHandlingPlugin'

Overrides

AbstractPlugin.name

Defined in

agent-plugin-error-handling/src/error-handling-plugin.ts:53

---

version

• version: string = '1.0.0'

Overrides

AbstractPlugin.version

Defined in

agent-plugin-error-handling/src/error-handling-plugin.ts:54

Methods

initialize

▸ initialize(options?): Promise<void>

Parameters

Name	Type
options?	IErrorHandlingPluginOptions

Returns

Promise<void>

Inherited from

AbstractPlugin.initialize

Defined in

agent-core/dist/node/index.d.ts:1063

---

subscribeToModuleEvents

▸ subscribeToModuleEvents(eventEmitter): Promise<void>

Parameters

Name	Type
eventEmitter	IEventEmitterPlugin

Returns

Promise<void>

Inherited from

AbstractPlugin.subscribeToModuleEvents

Defined in

agent-core/dist/node/index.d.ts:1064

---

unsubscribeFromModuleEvents

▸ unsubscribeFromModuleEvents(eventEmitter): Promise<void>

Parameters

Name	Type
eventEmitter	IEventEmitterPlugin

Returns

Promise<void>

Inherited from

AbstractPlugin.unsubscribeFromModuleEvents

Defined in

agent-core/dist/node/index.d.ts:1065

---

dispose

▸ dispose(): Promise<void>

Returns

Promise<void>

Inherited from

AbstractPlugin.dispose

Defined in

agent-core/dist/node/index.d.ts:1066

---

enable

▸ enable(): void

Returns

void

Inherited from

AbstractPlugin.enable

Defined in

agent-core/dist/node/index.d.ts:1067

---

disable

▸ disable(): void

Returns

void

Inherited from

AbstractPlugin.disable

Defined in

agent-core/dist/node/index.d.ts:1068

---

isEnabled

▸ isEnabled(): boolean

Returns

boolean

Inherited from

AbstractPlugin.isEnabled

Defined in

agent-core/dist/node/index.d.ts:1069

---

getConfig

▸ getConfig(): IPluginConfig

Returns

IPluginConfig

Inherited from

AbstractPlugin.getConfig

Defined in

agent-core/dist/node/index.d.ts:1070

---

updateConfig

▸ updateConfig(_config): void

Parameters

Name	Type
_config	IPluginConfig

Returns

void

Inherited from

AbstractPlugin.updateConfig

Defined in

agent-core/dist/node/index.d.ts:1071

---

getData

▸ getData(): IPluginData

Returns

IPluginData

Inherited from

AbstractPlugin.getData

Defined in

agent-core/dist/node/index.d.ts:1072

---

clearData

▸ clearData(): void

Returns

void

Inherited from

AbstractPlugin.clearData

Defined in

agent-core/dist/node/index.d.ts:1073

---

getStatus

▸ getStatus(): Object

Returns

Object

Name	Type
name	string
version	string
enabled	boolean
initialized	boolean
category	PluginCategory
priority	number
subscribedEventsCount	number
hasEventEmitter	boolean

Inherited from

AbstractPlugin.getStatus

Defined in

agent-core/dist/node/index.d.ts:1074

---

beforeRun

▸ beforeRun(input, options?): Promise<void>

Parameters

Name	Type
input	string
options?	IRunOptions

Returns

Promise<void>

Inherited from

AbstractPlugin.beforeRun

Defined in

agent-core/dist/node/index.d.ts:1087

---

afterRun

▸ afterRun(input, response, options?): Promise<void>

Parameters

Name	Type
input	string
response	string
options?	IRunOptions

Returns

Promise<void>

Inherited from

AbstractPlugin.afterRun

Defined in

agent-core/dist/node/index.d.ts:1088

---

beforeExecution

▸ beforeExecution(context): Promise<void>

Parameters

Name	Type
context	IPluginExecutionContext

Returns

Promise<void>

Inherited from

AbstractPlugin.beforeExecution

Defined in

agent-core/dist/node/index.d.ts:1089

---

afterExecution

▸ afterExecution(context, result): Promise<void>

Parameters

Name	Type
context	IPluginExecutionContext
result	IPluginExecutionResult

Returns

Promise<void>

Inherited from

AbstractPlugin.afterExecution

Defined in

agent-core/dist/node/index.d.ts:1090

---

beforeConversation

▸ beforeConversation(context): Promise<void>

Parameters

Name	Type
context	IPluginExecutionContext

Returns

Promise<void>

Inherited from

AbstractPlugin.beforeConversation

Defined in

agent-core/dist/node/index.d.ts:1091

---

afterConversation

▸ afterConversation(context, result): Promise<void>

Parameters

Name	Type
context	IPluginExecutionContext
result	IPluginExecutionResult

Returns

Promise<void>

Inherited from

AbstractPlugin.afterConversation

Defined in

agent-core/dist/node/index.d.ts:1092

---

beforeToolCall

▸ beforeToolCall(toolName, parameters): Promise<void>

Parameters

Name	Type
toolName	string
parameters	TToolParameters

Returns

Promise<void>

Inherited from

AbstractPlugin.beforeToolCall

Defined in

agent-core/dist/node/index.d.ts:1093

---

beforeToolExecution

▸ beforeToolExecution(context, toolData): Promise<void>

Parameters

Name	Type
context	IPluginExecutionContext
toolData	IToolExecutionContext

Returns

Promise<void>

Inherited from

AbstractPlugin.beforeToolExecution

Defined in

agent-core/dist/node/index.d.ts:1094

---

afterToolCall

▸ afterToolCall(toolName, parameters, result): Promise<void>

Parameters

Name	Type
toolName	string
parameters	TToolParameters
result	IToolExecutionResult

Returns

Promise<void>

Inherited from

AbstractPlugin.afterToolCall

Defined in

agent-core/dist/node/index.d.ts:1095

---

afterToolExecution

▸ afterToolExecution(context, toolResults): Promise<void>

Parameters

Name	Type
context	IPluginExecutionContext
toolResults	IPluginExecutionResult

Returns

Promise<void>

Inherited from

AbstractPlugin.afterToolExecution

Defined in

agent-core/dist/node/index.d.ts:1096

---

beforeProviderCall

▸ beforeProviderCall(messages): Promise<void>

Parameters

Name	Type
messages	TUniversalMessage[]

Returns

Promise<void>

Inherited from

AbstractPlugin.beforeProviderCall

Defined in

agent-core/dist/node/index.d.ts:1097

---

afterProviderCall

▸ afterProviderCall(messages, response): Promise<void>

Parameters

Name	Type
messages	TUniversalMessage[]
response	TUniversalMessage

Returns

Promise<void>

Inherited from

AbstractPlugin.afterProviderCall

Defined in

agent-core/dist/node/index.d.ts:1098

---

onStreamingChunk

▸ onStreamingChunk(chunk): Promise<void>

Parameters

Name	Type
chunk	TUniversalMessage

Returns

Promise<void>

Inherited from

AbstractPlugin.onStreamingChunk

Defined in

agent-core/dist/node/index.d.ts:1099

---

onError

▸ onError(error, context?): Promise<void>

Parameters

Name	Type
error	Error
context?	IPluginErrorContext

Returns

Promise<void>

Inherited from

AbstractPlugin.onError

Defined in

agent-core/dist/node/index.d.ts:1100

---

onMessageAdded

▸ onMessageAdded(message): Promise<void>

Parameters

Name	Type
message	TUniversalMessage

Returns

Promise<void>

Inherited from

AbstractPlugin.onMessageAdded

Defined in

agent-core/dist/node/index.d.ts:1101

---

onModuleEvent

▸ onModuleEvent(eventName, eventData): Promise<void>

Parameters

Name	Type
eventName	TEventName
eventData	IEventEmitterEventData

Returns

Promise<void>

Inherited from

AbstractPlugin.onModuleEvent

Defined in

agent-core/dist/node/index.d.ts:1102

---

handleError

▸ handleError(error, context?): Promise<void>

Dispatches the error to the active strategy handler. If a custom error handler is configured, it takes precedence over strategy-specific handling.

Parameters

Name	Type
error	Error
context	IErrorHandlingContextData

Returns

Promise<void>

Defined in

agent-plugin-error-handling/src/error-handling-plugin.ts:99

---

executeWithRetry

▸ executeWithRetry<T>(fn, context?): Promise<T>

Executes a function with automatic retries up to maxRetries. The delay between retries follows the configured strategy (fixed for simple / circuit-breaker, doubling for exponential-backoff).

Type parameters

Name
T

Parameters

Name	Type
fn	() => Promise<T>
context	IErrorHandlingContextData

Returns

Promise<T>

Throws

PluginError after all retry attempts are exhausted

Defined in

agent-plugin-error-handling/src/error-handling-plugin.ts:145

---

resetCircuitBreaker

▸ resetCircuitBreaker(): void

Resets the circuit breaker to closed state, clearing failure count and last failure timestamp.

Returns

void

Defined in

agent-plugin-error-handling/src/error-handling-plugin.ts:210

---

getStats

▸ getStats(): IErrorHandlingPluginStats

Get error handling statistics

Returns

IErrorHandlingPluginStats

Overrides

AbstractPlugin.getStats

Defined in

agent-plugin-error-handling/src/error-handling-plugin.ts:220

---

destroy

▸ destroy(): Promise<void>

Cleanup resources

Returns

Promise<void>

Defined in

agent-plugin-error-handling/src/error-handling-plugin.ts:235