taskmaster

package
v2.0.4 Latest Latest
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 Go to latest Published: Jul 10, 2026 License: MIT Imports: 7 Imported by: 0

Documentation

Overview

Package taskmaster provides an unstable reusable async message scheduler.

The runtime coordinates local node inboxes and external dispatch targets around one public Message type. Nodes receive one message, can emit many addressed messages while running, and return one terminal Outcome.

Index

Constants

View Source 
const (
	// MessageKindJob identifies a job message.
	MessageKindJob = "job"
	// MessageKindProgress identifies a progress update message.
	MessageKindProgress = "progress"
	// MessageKindNotification identifies a notification message.
	MessageKindNotification = "notification"
	// MessageKindResult identifies a result message.
	MessageKindResult = "result"
	// MessageKindError identifies an error message.
	MessageKindError = "error"

	// OutcomeStatusCompleted means a node completed message handling successfully.
	OutcomeStatusCompleted = "completed"
	// OutcomeStatusFailed means a node failed message handling.
	OutcomeStatusFailed = "failed"
	// OutcomeStatusStopped means a node requested runtime shutdown.
	OutcomeStatusStopped = "stopped"
)
View Source 
const (
	// LocatorClassAgent identifies an agent endpoint.
	LocatorClassAgent = "agent"
	// LocatorClassAlias identifies an alias endpoint.
	LocatorClassAlias = "alias"
	// LocatorClassHuman identifies a human endpoint.
	LocatorClassHuman = "human"
	// LocatorClassIntegration identifies an integration endpoint.
	LocatorClassIntegration = "integration"

	// LocatorTransportCLI identifies CLI transport.
	LocatorTransportCLI = "cli"
	// LocatorTransportFakeChat identifies fake chat transport.
	LocatorTransportFakeChat = "fakechat"
	// LocatorTransportLocal identifies in-process local transport.
	LocatorTransportLocal = "local"
	// LocatorTransportTelegram identifies Telegram transport.
	LocatorTransportTelegram = "telegram"
	// LocatorTransportTimer identifies timer transport.
	LocatorTransportTimer = "timer"
	// LocatorTransportWhatsApp identifies WhatsApp transport.
	LocatorTransportWhatsApp = "whatsapp"

	// CLIInputKey identifies the built-in CLI input endpoint.
	CLIInputKey = "input"
	// CLILogKey identifies the built-in CLI log endpoint.
	CLILogKey = "log"
	// DefaultTimerKey identifies the default timer endpoint.
	DefaultTimerKey = "default"
)

Variables

View Source 
var ErrUnsupported = errors.New("unsupported locator operation")

ErrUnsupported reports that a target cannot handle the requested locator operation.

Functions

This section is empty.

Types

type CLILogTarget 

type CLILogTarget struct {
	// contains filtered or unexported fields
}

CLILogTarget writes CLI log messages through zerolog.

func (CLILogTarget) DispatchMessage 

func (t CLILogTarget) DispatchMessage(_ context.Context, msg Message) error

DispatchMessage writes a message to the configured logger.

func (CLILogTarget) Supports 

func (t CLILogTarget) Supports(locator Locator) bool

Supports reports whether the target handles the locator.

type Config 

type Config struct {
	Logger        *zerolog.Logger
	RootNodeID    string
	Nodes         map[string]Node
	Targets       []Target
	OutcomeRouter OutcomeRouter
}

Config configures a taskmaster runtime.

type EmitFunc 

type EmitFunc func(ctx context.Context, msg Message) error

EmitFunc sends a message produced by a node back into the runtime.

type Locator 

type Locator struct {
	Class     string         `json:"class"`
	Transport string         `json:"transport"`
	Key       string         `json:"key"`
	Address   map[string]any `json:"address,omitempty"`
}

Locator identifies a message source or destination.

func NewAgentLocator 

func NewAgentLocator(id string) Locator

NewAgentLocator constructs a local agent locator.

func NewCLIInputLocator 

func NewCLIInputLocator() Locator

NewCLIInputLocator constructs the built-in CLI input locator.

func NewCLILogLocator 

func NewCLILogLocator() Locator

NewCLILogLocator constructs the built-in CLI log locator.

func NewFakeChatHumanLocator 

func NewFakeChatHumanLocator(chatID string) Locator

NewFakeChatHumanLocator constructs a fake chat human locator.

func NewLocator 

func NewLocator(locatorClass string, transport string, key string) Locator

NewLocator constructs a normalized locator.

func NewTelegramHumanLocator 

func NewTelegramHumanLocator(chatID int64, topicID int) Locator

NewTelegramHumanLocator constructs a Telegram human locator.

func NewTimerSourceLocator 

func NewTimerSourceLocator() Locator

NewTimerSourceLocator constructs the built-in timer source locator.

func NewWhatsAppHumanLocator 

func NewWhatsAppHumanLocator(phoneNumberID string) Locator

NewWhatsAppHumanLocator constructs a WhatsApp human locator.

func NormalizeLocator 

func NormalizeLocator(locator Locator) (Locator, error)

NormalizeLocator validates and canonicalizes a locator.

func (Locator) String 

func (l Locator) String() string

type Message 

type Message struct {
	ID        string         `json:"id"`
	SessionID string         `json:"session_id"`
	Kind      string         `json:"kind"`
	From      Locator        `json:"from"`
	To        Locator        `json:"to"`
	ParentID  string         `json:"parent_id,omitempty"`
	Content   string         `json:"content"`
	Metadata  map[string]any `json:"metadata,omitempty"`
}

Message is the unit routed through a taskmaster runtime.

func NormalizeMessage 

func NormalizeMessage(msg Message) (Message, error)

NormalizeMessage validates and canonicalizes a message.

type Node 

type Node interface {
	Run(ctx context.Context, msg Message, emit EmitFunc) Outcome
}

Node handles taskmaster messages.

type Outcome 

type Outcome struct {
	Status   string
	Content  string
	Metadata map[string]any
	Err      error
}

Outcome describes the result of running a message through a node.

type OutcomeRouter 

type OutcomeRouter func(msg Message, outcome Outcome) []Message

OutcomeRouter maps a completed message and outcome to follow-up messages.

type Runtime 

type Runtime struct {
	// contains filtered or unexported fields
}

Runtime coordinates taskmaster nodes, routing, and lifecycle.

func New 

func New(cfg Config) (*Runtime, error)

New creates a taskmaster runtime from Config.

func (*Runtime) Done 

func (r *Runtime) Done() <-chan struct{}

Done returns a channel closed when the runtime exits.

func (*Runtime) Enqueue 

func (r *Runtime) Enqueue(msg Message) error

Enqueue adds a root message to the runtime.

func (*Runtime) Err 

func (r *Runtime) Err() error

Err returns the runtime terminal error, if any.

func (*Runtime) Start 

func (r *Runtime) Start(ctx context.Context) error

Start begins processing queued and emitted messages.

func (*Runtime) Stop 

func (r *Runtime) Stop(ctx context.Context) error

Stop requests shutdown and waits for all running work to finish.

type Target 

type Target interface {
	Supports(locator Locator) bool
	DispatchMessage(ctx context.Context, msg Message) error
}

Target dispatches messages to supported locators.

func NewCLILogTarget 

func NewCLILogTarget(logger zerolog.Logger) Target

NewCLILogTarget constructs a target for the built-in CLI log locator.

Source Files

View all Source files

Directories

Path Synopsis
Package adk wraps an already-built ADK agent for Taskmaster local execution.
 Package adk wraps an already-built ADK agent for Taskmaster local execution.

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