agents / Exports / LimitsPlugin

Class: LimitsPlugin

Plugin for rate limiting and resource control Enforces limits on token usage, request frequency, and costs

Hierarchy

• BasePlugin<LimitsPluginOptions, PluginLimitsStatusData>

  ↳ LimitsPlugin

Table of contents

Constructors

• constructor

Properties

• enabled
• category
• priority
• name
• version

Methods

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

Constructors

constructor

• new LimitsPlugin(options): LimitsPlugin

Parameters

Name	Type
options	LimitsPluginOptions

Returns

LimitsPlugin

Overrides

BasePlugin.constructor

Defined in

packages/agents/src/plugins/limits-plugin.ts:58

Properties

enabled

• enabled: boolean = true

Plugin enabled state

Inherited from

BasePlugin.enabled

Defined in

packages/agents/src/abstracts/base-plugin.ts:297

---

category

• category: PluginCategory = PluginCategory.CUSTOM

Plugin category for classification

Inherited from

BasePlugin.category

Defined in

packages/agents/src/abstracts/base-plugin.ts:300

---

priority

• priority: number = PluginPriority.NORMAL

Plugin priority for execution order

Inherited from

BasePlugin.priority

Defined in

packages/agents/src/abstracts/base-plugin.ts:303

---

name

• name: string = 'LimitsPlugin'

Plugin name

Overrides

BasePlugin.name

Defined in

packages/agents/src/plugins/limits-plugin.ts:49

---

version

• version: string = '1.0.0'

Plugin version

Overrides

BasePlugin.version

Defined in

packages/agents/src/plugins/limits-plugin.ts:50

Methods

initialize

▸ initialize(options?): Promise<void>

Initialize the plugin with type-safe options

Parameters

Name	Type
options?	LimitsPluginOptions

Returns

Promise<void>

Inherited from

BasePlugin.initialize

Defined in

packages/agents/src/abstracts/base-plugin.ts:328

---

subscribeToModuleEvents

▸ subscribeToModuleEvents(eventEmitter): Promise<void>

Subscribe to module events through EventEmitter

Parameters

Name	Type
eventEmitter	EventEmitterPlugin

Returns

Promise<void>

Inherited from

BasePlugin.subscribeToModuleEvents

Defined in

packages/agents/src/abstracts/base-plugin.ts:356

---

unsubscribeFromModuleEvents

▸ unsubscribeFromModuleEvents(eventEmitter): Promise<void>

Unsubscribe from module events

Parameters

Name	Type
eventEmitter	EventEmitterPlugin

Returns

Promise<void>

Inherited from

BasePlugin.unsubscribeFromModuleEvents

Defined in

packages/agents/src/abstracts/base-plugin.ts:415

---

dispose

▸ dispose(): Promise<void>

Cleanup plugin resources

Returns

Promise<void>

Inherited from

BasePlugin.dispose

Defined in

packages/agents/src/abstracts/base-plugin.ts:430

---

enable

▸ enable(): void

Enable the plugin

Returns

void

Inherited from

BasePlugin.enable

Defined in

packages/agents/src/abstracts/base-plugin.ts:442

---

disable

▸ disable(): void

Disable the plugin

Returns

void

Inherited from

BasePlugin.disable

Defined in

packages/agents/src/abstracts/base-plugin.ts:449

---

isEnabled

▸ isEnabled(): boolean

Check if plugin is enabled

Returns

boolean

Inherited from

BasePlugin.isEnabled

Defined in

packages/agents/src/abstracts/base-plugin.ts:456

---

getConfig

▸ getConfig(): PluginConfig

Get plugin configuration

Returns

PluginConfig

Inherited from

BasePlugin.getConfig

Defined in

packages/agents/src/abstracts/base-plugin.ts:463

---

updateConfig

▸ updateConfig(_config): void

Update plugin configuration

Parameters

Name	Type
_config	PluginConfig

Returns

void

Inherited from

BasePlugin.updateConfig

Defined in

packages/agents/src/abstracts/base-plugin.ts:470

---

getData

▸ getData(): PluginData

Get plugin data - enhanced with classification information

Returns

PluginData

Inherited from

BasePlugin.getData

Defined in

packages/agents/src/abstracts/base-plugin.ts:477

---

clearData

▸ clearData(): void

Clear plugin data - common interface for all plugins This method should be implemented by plugins that store data

Returns

void

Inherited from

BasePlugin.clearData

Defined in

packages/agents/src/abstracts/base-plugin.ts:497

---

getStatus

▸ getStatus(): Object

Get plugin status - enhanced with classification information

Returns

Object

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

Inherited from

BasePlugin.getStatus

Defined in

packages/agents/src/abstracts/base-plugin.ts:502

---

getStats

▸ getStats(): PluginLimitsStatusData

Get plugin statistics - enhanced with module event tracking

Returns

PluginLimitsStatusData

Inherited from

BasePlugin.getStats

Defined in

packages/agents/src/abstracts/base-plugin.ts:527

---

beforeRun

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

Called before agent run

Parameters

Name	Type
input	string
options?	RunOptions

Returns

Promise<void>

Inherited from

BasePlugin.beforeRun

Defined in

packages/agents/src/abstracts/base-plugin.ts:556

---

afterRun

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

Called after agent run

Parameters

Name	Type
input	string
response	string
options?	RunOptions

Returns

Promise<void>

Inherited from

BasePlugin.afterRun

Defined in

packages/agents/src/abstracts/base-plugin.ts:557

---

beforeConversation

▸ beforeConversation(context): Promise<void>

Called before conversation with context

Parameters

Name	Type
context	BaseExecutionContext

Returns

Promise<void>

Inherited from

BasePlugin.beforeConversation

Defined in

packages/agents/src/abstracts/base-plugin.ts:560

---

afterConversation

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

Called after conversation with context and result

Parameters

Name	Type
context	BaseExecutionContext
result	BaseExecutionResult

Returns

Promise<void>

Inherited from

BasePlugin.afterConversation

Defined in

packages/agents/src/abstracts/base-plugin.ts:561

---

beforeToolCall

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

Called before tool execution

Parameters

Name	Type
toolName	string
parameters	ToolParameters

Returns

Promise<void>

Inherited from

BasePlugin.beforeToolCall

Defined in

packages/agents/src/abstracts/base-plugin.ts:562

---

beforeToolExecution

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

Called before tool execution with context

Parameters

Name	Type
context	BaseExecutionContext
toolData	ToolExecutionContext

Returns

Promise<void>

Inherited from

BasePlugin.beforeToolExecution

Defined in

packages/agents/src/abstracts/base-plugin.ts:563

---

afterToolCall

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

Called after tool execution

Parameters

Name	Type
toolName	string
parameters	ToolParameters
result	ToolExecutionResult

Returns

Promise<void>

Inherited from

BasePlugin.afterToolCall

Defined in

packages/agents/src/abstracts/base-plugin.ts:564

---

afterToolExecution

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

Called after tool execution with context

Parameters

Name	Type
context	BaseExecutionContext
toolResults	BaseExecutionResult

Returns

Promise<void>

Inherited from

BasePlugin.afterToolExecution

Defined in

packages/agents/src/abstracts/base-plugin.ts:565

---

beforeProviderCall

▸ beforeProviderCall(messages): Promise<void>

Called before AI provider call

Parameters

Name	Type
messages	UniversalMessage[]

Returns

Promise<void>

Inherited from

BasePlugin.beforeProviderCall

Defined in

packages/agents/src/abstracts/base-plugin.ts:566

---

afterProviderCall

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

Called after AI provider call

Parameters

Name	Type
messages	UniversalMessage[]
response	UniversalMessage

Returns

Promise<void>

Inherited from

BasePlugin.afterProviderCall

Defined in

packages/agents/src/abstracts/base-plugin.ts:567

---

onStreamingChunk

▸ onStreamingChunk(chunk): Promise<void>

Called on streaming chunk

Parameters

Name	Type
chunk	UniversalMessage

Returns

Promise<void>

Inherited from

BasePlugin.onStreamingChunk

Defined in

packages/agents/src/abstracts/base-plugin.ts:568

---

onError

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

Called on error

Parameters

Name	Type
error	Error
context?	ErrorContext

Returns

Promise<void>

Inherited from

BasePlugin.onError

Defined in

packages/agents/src/abstracts/base-plugin.ts:569

---

onMessageAdded

▸ onMessageAdded(message): Promise<void>

Called on message added to history

Parameters

Name	Type
message	Message

Returns

Promise<void>

Inherited from

BasePlugin.onMessageAdded

Defined in

packages/agents/src/abstracts/base-plugin.ts:570

---

onModuleEvent

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

Called when module events are received

Parameters

Name	Type
eventType	EventType
eventData	EventData

Returns

Promise<void>

Inherited from

BasePlugin.onModuleEvent

Defined in

packages/agents/src/abstracts/base-plugin.ts:571

---

beforeExecution

▸ beforeExecution(context): Promise<void>

Check limits before execution

Parameters

Name	Type
context	BaseExecutionContext

Returns

Promise<void>

Overrides

BasePlugin.beforeExecution

Defined in

packages/agents/src/plugins/limits-plugin.ts:95

---

afterExecution

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

Update limits after execution

Parameters

Name	Type
context	BaseExecutionContext
result	BaseExecutionResult

Returns

Promise<void>

Overrides

BasePlugin.afterExecution

Defined in

packages/agents/src/plugins/limits-plugin.ts:133

---

getLimitsStatus

▸ getLimitsStatus(key?): PluginLimitsStatusData

Get current limits status

REASON: Limits status contains mixed data types (numbers, strings, arrays, objects) for comprehensive status reporting ALTERNATIVES_CONSIDERED:

1. Strict interface definitions (too rigid for dynamic status data)
2. Union types (becomes unwieldy for status reporting)
3. Generic constraints (too complex for status methods)
4. Separate status types (breaks existing functionality)
5. Type assertions (decreases type safety) TODO: Consider specific status interface if patterns emerge

Parameters

Name	Type
key?	string

Returns

PluginLimitsStatusData

Defined in

packages/agents/src/plugins/limits-plugin.ts:499

---

resetLimits

▸ resetLimits(key?): void

Reset limits for a key or all keys

Parameters

Name	Type
key?	string

Returns

void

Defined in

packages/agents/src/plugins/limits-plugin.ts:532