ai

package
v0.1.3 Latest Latest
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 Go to latest Published: Jul 22, 2026 License: MIT Imports: 21 Imported by: 0

Documentation

Overview

Package ai provides pi's provider-neutral message and streaming contracts.

Index

Constants

View Source 
const (
	ModelsErrorModelSource     = auth.ErrorModelSource
	ModelsErrorModelValidation = auth.ErrorModelValidation
	ModelsErrorProvider        = auth.ErrorProvider
	ModelsErrorStream          = auth.ErrorStream
	ModelsErrorAuth            = auth.ErrorAuth
	ModelsErrorOAuth           = auth.ErrorOAuth
)
View Source 
const (
	ImagesAPIOpenRouter      ImagesAPI        = "openrouter-images"
	ImagesProviderOpenRouter ImagesProviderID = "openrouter"

	ImagesStopReasonStop    ImagesStopReason = "stop"
	ImagesStopReasonError   ImagesStopReason = "error"
	ImagesStopReasonAborted ImagesStopReason = "aborted"
)

Variables

View Source 
var ErrStreamIncomplete = errors.New("ai: stream ended without a terminal event")

Functions

func CalculateCost 

func CalculateCost(model *Model, usage *Usage)

CalculateCost fills usage.Cost from the model's rates, applying tiered pricing above each tier's input-token threshold and Anthropic's 2x base input rate for 1h cache writes.

func CleanupSessionResources 

func CleanupSessionResources(sessionID ...string) error

CleanupSessionResources runs registered provider cleanups in registration order. Omitting sessionID releases resources for every session.

func ContentText 

func ContentText(content any, separators ...string) string

ContentText extracts text blocks and joins them with a newline by default.

func HasAPI 

func HasAPI(model *Model, api API) bool

HasAPI reports whether the model streams through the given API shape.

func IsContextOverflow 

func IsContextOverflow(message *AssistantMessage, contextWindow float64) bool

IsContextOverflow recognizes upstream's explicit and silent overflow forms.

func IsRetryableAssistantError 

func IsRetryableAssistantError(message *AssistantMessage) bool

IsRetryableAssistantError reports whether a failed assistant message is a transient provider or transport error.

func Marshal 

func Marshal(value any) ([]byte, error)

Marshal encodes the ai wire format with JSON.stringify-compatible string escaping. Internal protocol and persistence surfaces must use this instead of encoding/json's HTML-safe default.

func MarshalAssistantMessageEvent 

func MarshalAssistantMessageEvent(event AssistantMessageEvent) ([]byte, error)

func MarshalMessage 

func MarshalMessage(message Message) ([]byte, error)

func MarshalToolCallArguments 

func MarshalToolCallArguments(content *ToolCall) ([]byte, error)

MarshalToolCallArguments preserves the provider's decoded JSON shape and object member order while the public argument map remains convenient for ordinary object-shaped tool calls.

func ModelsAreEqual 

func ModelsAreEqual(a, b *Model) bool

ModelsAreEqual compares models by id and provider; nil never equals.

func NormalizeJSONStringifyJSON 

func NormalizeJSONStringifyJSON(data []byte) ([]byte, error)

NormalizeJSONStringifyJSON parses JSON with JavaScript Number semantics and re-emits the same value using JSON.stringify's ordering and scalar spelling.

func ParseStreamingJSON 

func ParseStreamingJSON(input string) any

ParseStreamingJSON parses potentially incomplete JSON captured while a tool call streams. It never fails: complete input parses strictly (retrying with string repair), partial input yields the values received so far, and empty or unusable input becomes an empty object — matching parseStreamingJson exported from upstream pi-ai's index for custom stream handlers.

func RegisterSessionResourceCleanup 

func RegisterSessionResourceCleanup(cleanup SessionResourceCleanup) func()

RegisterSessionResourceCleanup installs a provider cleanup and returns an idempotent function that unregisters it.

func SetAssistantMessageErrorBeforeResponseID 

func SetAssistantMessageErrorBeforeResponseID(message *AssistantMessage, enabled bool)

SetAssistantMessageErrorBeforeResponseID preserves the order produced when a streaming backend appends errorMessage before responseId to an existing message.

func SetAssistantMessageErrorBeforeTimestamp 

func SetAssistantMessageErrorBeforeTimestamp(message *AssistantMessage, enabled bool)

SetAssistantMessageErrorBeforeTimestamp preserves the member order of upstream message constructors that insert errorMessage before timestamp.

func SetToolCallArgumentsJSON 

func SetToolCallArgumentsJSON(content *ToolCall, data []byte) error

SetToolCallArgumentsJSON records a complete provider-emitted argument value so a later replay preserves JSON.stringify's original shape and member order. ToolCall.Arguments remains an object-oriented Go convenience; malformed provider values are retained in the wire representation and exposed through ToolCallArgumentsValue.

func SetUsageOptionalsBeforeTotals 

func SetUsageOptionalsBeforeTotals(usage *Usage)

SetUsageOptionalsBeforeTotals preserves the order of upstream usage objects built by compaction aggregation.

func ToolCallArgumentsValue 

func ToolCallArgumentsValue(content *ToolCall) any

ToolCallArgumentsValue returns the provider-emitted JSON value. Valid tool calls return the public argument map; malformed non-object values remain observable so schema validation and transforms see the same runtime value as upstream.

func UUIDv7 

func UUIDv7() (string, error)

UUIDv7 returns a monotonic UUIDv7.

Types

type API 

type API string
const (
	APIUnknown              API = ""
	APIOpenAICompletions    API = "openai-completions"
	APIMistralConversations API = "mistral-conversations"
	APIOpenAIResponses      API = "openai-responses"
	APIAzureOpenAIResponses API = "azure-openai-responses"
	APIOpenAICodexResponses API = "openai-codex-responses"
	APIAnthropicMessages    API = "anthropic-messages"
	APIBedrockConverse      API = "bedrock-converse-stream"
	APIGoogleGenerativeAI   API = "google-generative-ai"
	APIGoogleVertex         API = "google-vertex"
	APIPiMessages           API = "pi-messages"
)

type AnthropicMessagesCompat 

type AnthropicMessagesCompat struct {
	SupportsEagerToolInputStreaming *bool `json:"supportsEagerToolInputStreaming,omitempty"`
	SupportsLongCacheRetention      *bool `json:"supportsLongCacheRetention,omitempty"`
	SendSessionAffinityHeaders      *bool `json:"sendSessionAffinityHeaders,omitempty"`
	SupportsCacheControlOnTools     *bool `json:"supportsCacheControlOnTools,omitempty"`
	SupportsTemperature             *bool `json:"supportsTemperature,omitempty"`
	ForceAdaptiveThinking           *bool `json:"forceAdaptiveThinking,omitempty"`
	AllowEmptySignature             *bool `json:"allowEmptySignature,omitempty"`
	SupportsToolReferences          *bool `json:"supportsToolReferences,omitempty"`
}

type AssistantCall added in v0.1.2 

type AssistantCall func() (*AssistantMessage, error)

AssistantCall produces one terminal assistant message. Returned errors are terminal because upstream retries message-level provider failures, not rejected calls.

type AssistantContent 

type AssistantContent []AssistantContentBlock

func (AssistantContent) MarshalJSON 

func (blocks AssistantContent) MarshalJSON() ([]byte, error)

func (*AssistantContent) UnmarshalJSON 

func (blocks *AssistantContent) UnmarshalJSON(data []byte) error

type AssistantContentBlock 

type AssistantContentBlock interface {
	// contains filtered or unexported methods
}

type AssistantImages 

type AssistantImages struct {
	API          ImagesAPI        `json:"api"`
	Provider     ImagesProviderID `json:"provider"`
	Model        string           `json:"model"`
	Output       ImagesContent    `json:"output"`
	ResponseID   *string          `json:"responseId,omitempty"`
	Usage        *Usage           `json:"usage,omitempty"`
	StopReason   ImagesStopReason `json:"stopReason"`
	ErrorMessage *string          `json:"errorMessage,omitempty"`
	Timestamp    int64            `json:"timestamp"`
}

type AssistantMessage 

type AssistantMessage struct {
	Content       AssistantContent              `json:"content"`
	API           API                           `json:"api"`
	Provider      ProviderID                    `json:"provider"`
	Model         string                        `json:"model"`
	Usage         Usage                         `json:"usage"`
	StopReason    StopReason                    `json:"stopReason"`
	Timestamp     int64                         `json:"timestamp"`
	ResponseID    *string                       `json:"responseId,omitempty"`
	ResponseModel *string                       `json:"responseModel,omitempty"`
	Diagnostics   *[]AssistantMessageDiagnostic `json:"diagnostics,omitempty"`
	ErrorMessage  *string                       `json:"errorMessage,omitempty"`
	// contains filtered or unexported fields
}

func Collect 

func Collect(events AssistantMessageEventStream) (*AssistantMessage, error)

func RetryAssistantCall added in v0.1.2 

func RetryAssistantCall(
	ctx context.Context,
	produce AssistantCall,
	policy *RetryPolicy,
	callbacks *RetryCallbacks,
) (*AssistantMessage, error)

RetryAssistantCall runs produce once and retries transient assistant errors according to policy. Cancellation during backoff is returned as a shallow copy of the last response with an aborted stop reason and no error message.

func (AssistantMessage) MarshalJSON 

func (message AssistantMessage) MarshalJSON() ([]byte, error)

func (*AssistantMessage) UnmarshalJSON 

func (message *AssistantMessage) UnmarshalJSON(data []byte) error

type AssistantMessageDiagnostic 

type AssistantMessageDiagnostic struct {
	Type      string               `json:"type"`
	Timestamp int64                `json:"timestamp"`
	Error     *DiagnosticErrorInfo `json:"error,omitempty"`
	Details   json.RawMessage      `json:"details,omitempty"`
}

func (AssistantMessageDiagnostic) MarshalJSON 

func (diagnostic AssistantMessageDiagnostic) MarshalJSON() ([]byte, error)

func (*AssistantMessageDiagnostic) UnmarshalJSON 

func (diagnostic *AssistantMessageDiagnostic) UnmarshalJSON(data []byte) error

type AssistantMessageEvent 

type AssistantMessageEvent interface {
	// contains filtered or unexported methods
}

func UnmarshalAssistantMessageEvent 

func UnmarshalAssistantMessageEvent(data []byte) (AssistantMessageEvent, error)

type AssistantMessageEventStream 

type AssistantMessageEventStream = iter.Seq2[AssistantMessageEvent, error]

type CacheControlFormat 

type CacheControlFormat string
const CacheControlAnthropic CacheControlFormat = "anthropic"

type CacheRetention 

type CacheRetention string
const (
	CacheRetentionNone  CacheRetention = "none"
	CacheRetentionShort CacheRetention = "short"
	CacheRetentionLong  CacheRetention = "long"
)

type Context 

type Context struct {
	SystemPrompt *string     `json:"systemPrompt,omitempty"`
	Messages     MessageList `json:"messages"`
	Tools        *[]Tool     `json:"tools,omitempty"`
}

type Cost 

type Cost struct {
	Input      float64 `json:"input"`
	Output     float64 `json:"output"`
	CacheRead  float64 `json:"cacheRead"`
	CacheWrite float64 `json:"cacheWrite"`
	Total      float64 `json:"total"`
}

type CreateImagesProviderOptions 

type CreateImagesProviderOptions struct {
	ID            ImagesProviderID
	Name          string
	Auth          auth.ProviderAuth
	Models        []ImagesModel
	RefreshModels func(context.Context) ([]ImagesModel, error)
	API           ImagesFunction
}

type DeferredToolsMode 

type DeferredToolsMode string
const DeferredToolsKimi DeferredToolsMode = "kimi"

type DiagnosticErrorInfo 

type DiagnosticErrorInfo struct {
	Name    *string         `json:"name,omitempty"`
	Message string          `json:"message"`
	Stack   *string         `json:"stack,omitempty"`
	Code    json.RawMessage `json:"code,omitempty"`
}

func (DiagnosticErrorInfo) MarshalJSON 

func (info DiagnosticErrorInfo) MarshalJSON() ([]byte, error)

func (*DiagnosticErrorInfo) UnmarshalJSON 

func (info *DiagnosticErrorInfo) UnmarshalJSON(data []byte) error

type DoneEvent 

type DoneEvent struct {
	Reason  StopReason        `json:"reason"`
	Message *AssistantMessage `json:"message"`
}

func (DoneEvent) MarshalJSON 

func (event DoneEvent) MarshalJSON() ([]byte, error)

type ErrorEvent 

type ErrorEvent struct {
	Reason StopReason        `json:"reason"`
	Error  *AssistantMessage `json:"error"`
}

func (ErrorEvent) MarshalJSON 

func (event ErrorEvent) MarshalJSON() ([]byte, error)

type HeadersHook 

type HeadersHook func(ctx context.Context, headers ProviderHeaders, model *Model) (ProviderHeaders, error)

type ImageContent 

type ImageContent struct {
	Data     string `json:"data"`
	MimeType string `json:"mimeType"`
}

func (ImageContent) MarshalJSON 

func (content ImageContent) MarshalJSON() ([]byte, error)

func (*ImageContent) UnmarshalJSON 

func (content *ImageContent) UnmarshalJSON(data []byte) error

type ImagesAPI 

type ImagesAPI string

type ImagesContent 

type ImagesContent []ImagesContentBlock

func (ImagesContent) MarshalJSON 

func (blocks ImagesContent) MarshalJSON() ([]byte, error)

func (*ImagesContent) UnmarshalJSON 

func (blocks *ImagesContent) UnmarshalJSON(data []byte) error

type ImagesContentBlock 

type ImagesContentBlock interface {
	// contains filtered or unexported methods
}

type ImagesContext 

type ImagesContext struct {
	Input ImagesContent `json:"input"`
}

type ImagesFunction 

type ImagesFunction func(ctx context.Context, request ImagesRequest) (*AssistantImages, error)

type ImagesModel 

type ImagesModel struct {
	ID               string                          `json:"id"`
	Name             string                          `json:"name"`
	API              ImagesAPI                       `json:"api"`
	Provider         ImagesProviderID                `json:"provider"`
	BaseURL          string                          `json:"baseUrl"`
	ThinkingLevelMap *map[ModelThinkingLevel]*string `json:"thinkingLevelMap,omitempty"`
	Input            InputModalities                 `json:"input"`
	Output           InputModalities                 `json:"output"`
	Cost             ModelCost                       `json:"cost"`
	Headers          *map[string]string              `json:"headers,omitempty"`
}

type ImagesModels 

type ImagesModels interface {
	GetProviders() []ImagesProvider
	GetProvider(ImagesProviderID) ImagesProvider
	GetModels(...ImagesProviderID) []ImagesModel
	GetModel(ImagesProviderID, string) *ImagesModel
	Refresh(context.Context, ...ImagesProviderID) error
	GetAuth(context.Context, ImagesProviderID, *auth.ResolutionOverrides) (*auth.AuthResult, error)
	GetModelAuth(context.Context, *ImagesModel, *auth.ResolutionOverrides) (*auth.AuthResult, error)
	GenerateImages(context.Context, ImagesRequest) (*AssistantImages, error)
}

type ImagesModelsOptions 

type ImagesModelsOptions struct {
	Credentials auth.CredentialStore
	AuthContext auth.AuthContext
}

type ImagesOptions 

type ImagesOptions struct {
	APIKey          *string            `json:"apiKey,omitempty"`
	Env             ProviderEnv        `json:"env,omitempty"`
	OnPayload       ImagesPayloadHook  `json:"-"`
	OnResponse      ImagesResponseHook `json:"-"`
	Headers         ProviderHeaders    `json:"headers,omitempty"`
	TimeoutMS       *int64             `json:"timeoutMs,omitempty"`
	MaxRetries      *int               `json:"maxRetries,omitempty"`
	MaxRetryDelayMS *int64             `json:"maxRetryDelayMs,omitempty"`
	Metadata        map[string]any     `json:"metadata,omitempty"`
}

type ImagesPayloadHook 

type ImagesPayloadHook func(ctx context.Context, payload any, model *ImagesModel) (replacement any, replace bool, err error)

type ImagesProvider 

type ImagesProvider interface {
	ID() ImagesProviderID
	Name() string
	Auth() auth.ProviderAuth
	GetModels() ([]ImagesModel, error)
	GenerateImages(context.Context, ImagesRequest) (*AssistantImages, error)
}

func CreateImagesProvider 

func CreateImagesProvider(input CreateImagesProviderOptions) ImagesProvider

type ImagesProviderID 

type ImagesProviderID string

type ImagesRequest 

type ImagesRequest struct {
	Model   *ImagesModel
	Context ImagesContext
	Options *ImagesOptions
}

type ImagesResponseHook 

type ImagesResponseHook func(ctx context.Context, response ProviderResponse, model *ImagesModel) error

type ImagesStopReason 

type ImagesStopReason string

type InputModalities 

type InputModalities []InputModality

func (InputModalities) MarshalJSON 

func (modalities InputModalities) MarshalJSON() ([]byte, error)

type InputModality 

type InputModality string
const (
	InputText  InputModality = "text"
	InputImage InputModality = "image"
)

type JSONSchema 

type JSONSchema = jsonschema.Schema

JSONSchema is a raw JSON Schema value. It preserves its input bytes when marshaled so extension and MCP schemas can cross the provider boundary without a Go-side rewrite.

func JSONSchemaFrom 

func JSONSchemaFrom[T any]() (JSONSchema, error)

JSONSchemaFrom derives an inline JSON Schema from T.

func JSONStringEnumSchema 

func JSONStringEnumSchema(values ...string) JSONSchema

JSONStringEnumSchema builds a string enum schema in provider wire order.

type MaxTokensField 

type MaxTokensField string
const (
	MaxTokensFieldCompletion MaxTokensField = "max_completion_tokens"
	MaxTokensFieldLegacy     MaxTokensField = "max_tokens"
)

type Message 

type Message interface {
	// contains filtered or unexported methods
}

func UnmarshalMessage 

func UnmarshalMessage(data []byte) (Message, error)

type MessageList 

type MessageList []Message

func (MessageList) MarshalJSON 

func (messages MessageList) MarshalJSON() ([]byte, error)

func (*MessageList) UnmarshalJSON 

func (messages *MessageList) UnmarshalJSON(data []byte) error

type Model 

type Model struct {
	ID               string                          `json:"id"`
	Name             string                          `json:"name"`
	API              API                             `json:"api"`
	Provider         ProviderID                      `json:"provider"`
	BaseURL          string                          `json:"baseUrl"`
	Reasoning        bool                            `json:"reasoning"`
	ThinkingLevelMap *map[ModelThinkingLevel]*string `json:"thinkingLevelMap,omitempty"`
	Input            InputModalities                 `json:"input"`
	Cost             ModelCost                       `json:"cost"`
	ContextWindow    float64                         `json:"contextWindow"`
	MaxTokens        float64                         `json:"maxTokens"`
	Headers          *map[string]string              `json:"headers,omitempty"`
	Compat           json.RawMessage                 `json:"compat,omitempty"`
}

type ModelCost 

type ModelCost struct {
	ModelCostRates
	Tiers *[]ModelCostTier `json:"tiers,omitempty"`
}

type ModelCostRates 

type ModelCostRates struct {
	Input      float64 `json:"input"`
	Output     float64 `json:"output"`
	CacheRead  float64 `json:"cacheRead"`
	CacheWrite float64 `json:"cacheWrite"`
}

type ModelCostTier 

type ModelCostTier struct {
	InputTokensAbove float64 `json:"inputTokensAbove"`
	ModelCostRates
}

type ModelThinkingLevel 

type ModelThinkingLevel string
const (
	ModelThinkingOff     ModelThinkingLevel = "off"
	ModelThinkingMinimal ModelThinkingLevel = "minimal"
	ModelThinkingLow     ModelThinkingLevel = "low"
	ModelThinkingMedium  ModelThinkingLevel = "medium"
	ModelThinkingHigh    ModelThinkingLevel = "high"
	ModelThinkingXHigh   ModelThinkingLevel = "xhigh"
	ModelThinkingMax     ModelThinkingLevel = "max"
)

func ClampThinkingLevel 

func ClampThinkingLevel(model *Model, requested ModelThinkingLevel) ModelThinkingLevel

ClampThinkingLevel returns the requested level when supported, otherwise the nearest supported level upward first, then downward.

func SupportedThinkingLevels 

func SupportedThinkingLevels(model *Model) []ModelThinkingLevel

SupportedThinkingLevels lists the model's usable thinking levels: a mapped null removes a level, and xhigh/max require an explicit mapping. A nil model reports every level (Go seam tolerance).

type ModelsError 

type ModelsError = auth.Error

type MutableImagesModels 

type MutableImagesModels interface {
	ImagesModels
	SetProvider(ImagesProvider)
	DeleteProvider(ImagesProviderID)
	ClearProviders()
}

func CreateImagesModels 

func CreateImagesModels(options ...ImagesModelsOptions) MutableImagesModels

type OpenAICompletionsCompat 

type OpenAICompletionsCompat struct {
	SupportsStore                               *bool                  `json:"supportsStore,omitempty"`
	SupportsDeveloperRole                       *bool                  `json:"supportsDeveloperRole,omitempty"`
	SupportsReasoningEffort                     *bool                  `json:"supportsReasoningEffort,omitempty"`
	SupportsUsageInStreaming                    *bool                  `json:"supportsUsageInStreaming,omitempty"`
	MaxTokensField                              *MaxTokensField        `json:"maxTokensField,omitempty"`
	RequiresToolResultName                      *bool                  `json:"requiresToolResultName,omitempty"`
	RequiresAssistantAfterToolResult            *bool                  `json:"requiresAssistantAfterToolResult,omitempty"`
	RequiresThinkingAsText                      *bool                  `json:"requiresThinkingAsText,omitempty"`
	RequiresReasoningContentOnAssistantMessages *bool                  `json:"requiresReasoningContentOnAssistantMessages,omitempty"`
	ThinkingFormat                              *ThinkingFormat        `json:"thinkingFormat,omitempty"`
	ChatTemplateKwargs                          *map[string]any        `json:"chatTemplateKwargs,omitempty"`
	OpenRouterRouting                           *OpenRouterRouting     `json:"openRouterRouting,omitempty"`
	VercelGatewayRouting                        *VercelGatewayRouting  `json:"vercelGatewayRouting,omitempty"`
	ZAIToolStream                               *bool                  `json:"zaiToolStream,omitempty"`
	SupportsStrictMode                          *bool                  `json:"supportsStrictMode,omitempty"`
	CacheControlFormat                          *CacheControlFormat    `json:"cacheControlFormat,omitempty"`
	SendSessionAffinityHeaders                  *bool                  `json:"sendSessionAffinityHeaders,omitempty"`
	DeferredToolsMode                           *DeferredToolsMode     `json:"deferredToolsMode,omitempty"`
	SessionAffinityFormat                       *SessionAffinityFormat `json:"sessionAffinityFormat,omitempty"`
	SupportsLongCacheRetention                  *bool                  `json:"supportsLongCacheRetention,omitempty"`
}

type OpenAIResponsesCompat 

type OpenAIResponsesCompat struct {
	SupportsDeveloperRole      *bool                  `json:"supportsDeveloperRole,omitempty"`
	SessionAffinityFormat      *SessionAffinityFormat `json:"sessionAffinityFormat,omitempty"`
	SupportsLongCacheRetention *bool                  `json:"supportsLongCacheRetention,omitempty"`
	SupportsToolSearch         *bool                  `json:"supportsToolSearch,omitempty"`
}

type OpenRouterRouting 

type OpenRouterRouting struct {
	AllowFallbacks         *bool           `json:"allow_fallbacks,omitempty"`
	RequireParameters      *bool           `json:"require_parameters,omitempty"`
	DataCollection         *string         `json:"data_collection,omitempty"`
	ZDR                    *bool           `json:"zdr,omitempty"`
	EnforceDistillableText *bool           `json:"enforce_distillable_text,omitempty"`
	Order                  *[]string       `json:"order,omitempty"`
	Only                   *[]string       `json:"only,omitempty"`
	Ignore                 *[]string       `json:"ignore,omitempty"`
	Quantizations          *[]string       `json:"quantizations,omitempty"`
	Sort                   json.RawMessage `json:"sort,omitempty"`
	MaxPrice               json.RawMessage `json:"max_price,omitempty"`
	PreferredMinThroughput json.RawMessage `json:"preferred_min_throughput,omitempty"`
	PreferredMaxLatency    json.RawMessage `json:"preferred_max_latency,omitempty"`
	// contains filtered or unexported fields
}

OpenRouterRouting is passed through to the provider verbatim. Upstream never re-types the compat object, so decoded values carry the raw JSON to preserve unknown keys and member order on the wire; the typed fields only serve Go-side construction.

func (OpenRouterRouting) MarshalJSON 

func (routing OpenRouterRouting) MarshalJSON() ([]byte, error)

func (*OpenRouterRouting) UnmarshalJSON 

func (routing *OpenRouterRouting) UnmarshalJSON(data []byte) error

type PayloadHook 

type PayloadHook func(ctx context.Context, payload any, model *Model) (replacement any, replace bool, err error)

type ProviderEnv 

type ProviderEnv map[string]string

type ProviderHeaders 

type ProviderHeaders map[string]*string

type ProviderID 

type ProviderID string

type ProviderResponse 

type ProviderResponse struct {
	Status  int               `json:"status"`
	Headers map[string]string `json:"headers"`
}

type RawAssistantMessageEvent 

type RawAssistantMessageEvent struct {
	Raw     json.RawMessage
	Partial *AssistantMessage
}

RawAssistantMessageEvent retains a future event shape emitted by a provider while attaching the partial assistant message expected by stream consumers.

func (RawAssistantMessageEvent) MarshalJSON 

func (event RawAssistantMessageEvent) MarshalJSON() ([]byte, error)

type Request 

type Request struct {
	Model   *Model
	Context Context
	Options *StreamOptions
}

type ResponseHook 

type ResponseHook func(ctx context.Context, response ProviderResponse, model *Model) error

type RetryCallbacks added in v0.1.2 

type RetryCallbacks struct {
	OnRetryScheduled    func(attempt, maxAttempts int, delayMS int64, errorMessage string) error
	OnRetryAttemptStart func() error
	OnRetryFinished     func(success bool, attempt int, finalError *string) error
}

RetryCallbacks reports the lifecycle of retries after the initial call. Callback errors stop the retry operation, matching rejected async callbacks upstream.

type RetryPolicy added in v0.1.2 

type RetryPolicy struct {
	Enabled     bool  `json:"enabled"`
	MaxRetries  int   `json:"maxRetries"`
	BaseDelayMS int64 `json:"baseDelayMs"`
}

RetryPolicy applies bounded exponential backoff to assistant-producing calls. MaxRetries counts retries after the initial call.

type SessionAffinityFormat 

type SessionAffinityFormat string
const (
	SessionAffinityOpenAI          SessionAffinityFormat = "openai"
	SessionAffinityOpenAINoSession SessionAffinityFormat = "openai-nosession"
	SessionAffinityOpenRouter      SessionAffinityFormat = "openrouter"
)

type SessionResourceCleanup 

type SessionResourceCleanup func(sessionID string) error

SessionResourceCleanup releases provider resources associated with one session. An empty session ID means release every cached session resource.

type SimpleStreamOptions 

type SimpleStreamOptions struct {
	StreamOptions
	Reasoning       *ThinkingLevel   `json:"reasoning,omitempty"`
	ThinkingBudgets *ThinkingBudgets `json:"thinkingBudgets,omitempty"`
}

type StartEvent 

type StartEvent struct {
	Partial *AssistantMessage `json:"partial"`
}

func (StartEvent) MarshalJSON 

func (event StartEvent) MarshalJSON() ([]byte, error)

type StopReason 

type StopReason string
const (
	StopReasonStop    StopReason = "stop"
	StopReasonLength  StopReason = "length"
	StopReasonToolUse StopReason = "toolUse"
	StopReasonError   StopReason = "error"
	StopReasonAborted StopReason = "aborted"
)

type StreamFn 

type StreamFn func(ctx context.Context, request Request) (AssistantMessageEventStream, error)

type StreamOptions 

type StreamOptions struct {
	Temperature               *float64        `json:"temperature,omitempty"`
	MaxTokens                 *float64        `json:"maxTokens,omitempty"`
	APIKey                    *string         `json:"apiKey,omitempty"`
	Transport                 *Transport      `json:"transport,omitempty"`
	CacheRetention            *CacheRetention `json:"cacheRetention,omitempty"`
	SessionID                 *string         `json:"sessionId,omitempty"`
	OnPayload                 PayloadHook     `json:"-"`
	TransformHeaders          HeadersHook     `json:"-"`
	OnResponse                ResponseHook    `json:"-"`
	Headers                   ProviderHeaders `json:"headers,omitempty"`
	TimeoutMS                 *int64          `json:"timeoutMs,omitempty"`
	WebSocketConnectTimeoutMS *int64          `json:"websocketConnectTimeoutMs,omitempty"`
	MaxRetries                *int            `json:"maxRetries,omitempty"`
	MaxRetryDelayMS           *int64          `json:"maxRetryDelayMs,omitempty"`
	Metadata                  map[string]any  `json:"metadata,omitempty"`
	Env                       ProviderEnv     `json:"env,omitempty"`
}

type TextContent 

type TextContent struct {
	Text          string  `json:"text"`
	TextSignature *string `json:"textSignature,omitempty"`
	// Index exists only while Anthropic content blocks are streaming and is cleared at block end.
	Index *int `json:"index,omitempty"`
}

func (TextContent) MarshalJSON 

func (content TextContent) MarshalJSON() ([]byte, error)

func (*TextContent) UnmarshalJSON 

func (content *TextContent) UnmarshalJSON(data []byte) error

type TextDeltaEvent 

type TextDeltaEvent struct {
	ContentIndex int               `json:"contentIndex"`
	Delta        string            `json:"delta"`
	Partial      *AssistantMessage `json:"partial"`
}

func (TextDeltaEvent) MarshalJSON 

func (event TextDeltaEvent) MarshalJSON() ([]byte, error)

type TextEndEvent 

type TextEndEvent struct {
	ContentIndex     int               `json:"contentIndex"`
	Content          string            `json:"content"`
	ContentSignature *string           `json:"contentSignature,omitempty"`
	Partial          *AssistantMessage `json:"partial"`
}

func (TextEndEvent) MarshalJSON 

func (event TextEndEvent) MarshalJSON() ([]byte, error)

type TextSignatureV1 

type TextSignatureV1 struct {
	Version int    `json:"v"`
	ID      string `json:"id"`
	Phase   string `json:"phase,omitempty"`
}

type TextStartEvent 

type TextStartEvent struct {
	ContentIndex int               `json:"contentIndex"`
	Partial      *AssistantMessage `json:"partial"`
}

func (TextStartEvent) MarshalJSON 

func (event TextStartEvent) MarshalJSON() ([]byte, error)

type ThinkingBudgets 

type ThinkingBudgets struct {
	Minimal *int `json:"minimal,omitempty"`
	Low     *int `json:"low,omitempty"`
	Medium  *int `json:"medium,omitempty"`
	High    *int `json:"high,omitempty"`
}

type ThinkingContent 

type ThinkingContent struct {
	Thinking          string  `json:"thinking"`
	ThinkingSignature *string `json:"thinkingSignature,omitempty"`
	Redacted          *bool   `json:"redacted,omitempty"`
	// Index exists only while Anthropic content blocks are streaming and is cleared at block end.
	Index *int `json:"index,omitempty"`
}

func (ThinkingContent) MarshalJSON 

func (content ThinkingContent) MarshalJSON() ([]byte, error)

func (*ThinkingContent) UnmarshalJSON 

func (content *ThinkingContent) UnmarshalJSON(data []byte) error

type ThinkingDeltaEvent 

type ThinkingDeltaEvent struct {
	ContentIndex int               `json:"contentIndex"`
	Delta        string            `json:"delta"`
	Partial      *AssistantMessage `json:"partial"`
}

func (ThinkingDeltaEvent) MarshalJSON 

func (event ThinkingDeltaEvent) MarshalJSON() ([]byte, error)

type ThinkingEndEvent 

type ThinkingEndEvent struct {
	ContentIndex     int               `json:"contentIndex"`
	Content          string            `json:"content"`
	ContentSignature *string           `json:"contentSignature,omitempty"`
	Redacted         *bool             `json:"redacted,omitempty"`
	Partial          *AssistantMessage `json:"partial"`
}

func (ThinkingEndEvent) MarshalJSON 

func (event ThinkingEndEvent) MarshalJSON() ([]byte, error)

type ThinkingFormat 

type ThinkingFormat string
const (
	ThinkingFormatOpenAI           ThinkingFormat = "openai"
	ThinkingFormatOpenRouter       ThinkingFormat = "openrouter"
	ThinkingFormatDeepSeek         ThinkingFormat = "deepseek"
	ThinkingFormatTogether         ThinkingFormat = "together"
	ThinkingFormatZAI              ThinkingFormat = "zai"
	ThinkingFormatQwen             ThinkingFormat = "qwen"
	ThinkingFormatChatTemplate     ThinkingFormat = "chat-template"
	ThinkingFormatQwenChatTemplate ThinkingFormat = "qwen-chat-template"
	ThinkingFormatString           ThinkingFormat = "string-thinking"
	ThinkingFormatAntLing          ThinkingFormat = "ant-ling"
)

type ThinkingLevel 

type ThinkingLevel string
const (
	ThinkingMinimal ThinkingLevel = "minimal"
	ThinkingLow     ThinkingLevel = "low"
	ThinkingMedium  ThinkingLevel = "medium"
	ThinkingHigh    ThinkingLevel = "high"
	ThinkingXHigh   ThinkingLevel = "xhigh"
	ThinkingMax     ThinkingLevel = "max"
)

type ThinkingStartEvent 

type ThinkingStartEvent struct {
	ContentIndex int               `json:"contentIndex"`
	Partial      *AssistantMessage `json:"partial"`
}

func (ThinkingStartEvent) MarshalJSON 

func (event ThinkingStartEvent) MarshalJSON() ([]byte, error)

type Tool 

type Tool struct {
	Name        string     `json:"name"`
	Label       string     `json:"label,omitempty"`
	Description string     `json:"description"`
	Parameters  JSONSchema `json:"parameters"`
}

type ToolCall 

type ToolCall struct {
	ID               string         `json:"id"`
	Name             string         `json:"name"`
	Arguments        map[string]any `json:"arguments"`
	ThoughtSignature *string        `json:"thoughtSignature,omitempty"`

	// Provider adapters clear streaming scratch fields before a terminal message is persisted.
	PartialJSON *string `json:"partialJson,omitempty"`
	PartialArgs *string `json:"partialArgs,omitempty"`
	StreamIndex *int    `json:"streamIndex,omitempty"`
	// Index exists only while Anthropic content blocks are streaming and is cleared at block end.
	Index *int `json:"index,omitempty"`
	// contains filtered or unexported fields
}

func (ToolCall) MarshalJSON 

func (content ToolCall) MarshalJSON() ([]byte, error)

func (*ToolCall) UnmarshalJSON 

func (content *ToolCall) UnmarshalJSON(data []byte) error

type ToolCallDeltaEvent 

type ToolCallDeltaEvent struct {
	ContentIndex int               `json:"contentIndex"`
	Delta        string            `json:"delta"`
	Partial      *AssistantMessage `json:"partial"`
}

func (ToolCallDeltaEvent) MarshalJSON 

func (event ToolCallDeltaEvent) MarshalJSON() ([]byte, error)

type ToolCallEndEvent 

type ToolCallEndEvent struct {
	ContentIndex int               `json:"contentIndex"`
	ToolCall     *ToolCall         `json:"toolCall"`
	Partial      *AssistantMessage `json:"partial"`
}

func (ToolCallEndEvent) MarshalJSON 

func (event ToolCallEndEvent) MarshalJSON() ([]byte, error)

type ToolCallStartEvent 

type ToolCallStartEvent struct {
	ContentIndex int               `json:"contentIndex"`
	ID           string            `json:"id,omitempty"`
	ToolName     string            `json:"toolName,omitempty"`
	Partial      *AssistantMessage `json:"partial"`
}

func (ToolCallStartEvent) MarshalJSON 

func (event ToolCallStartEvent) MarshalJSON() ([]byte, error)

type ToolResultContent 

type ToolResultContent []ToolResultContentBlock

func (ToolResultContent) MarshalJSON 

func (blocks ToolResultContent) MarshalJSON() ([]byte, error)

func (*ToolResultContent) UnmarshalJSON 

func (blocks *ToolResultContent) UnmarshalJSON(data []byte) error

type ToolResultContentBlock 

type ToolResultContentBlock interface {
	// contains filtered or unexported methods
}

type ToolResultMessage 

type ToolResultMessage struct {
	ToolCallID     string            `json:"toolCallId"`
	ToolName       string            `json:"toolName"`
	Content        ToolResultContent `json:"content"`
	Details        json.RawMessage   `json:"details,omitempty"`
	Usage          *Usage            `json:"usage,omitempty"`
	AddedToolNames *[]string         `json:"addedToolNames,omitempty"`
	IsError        bool              `json:"isError"`
	Timestamp      int64             `json:"timestamp"`
}

func (ToolResultMessage) MarshalJSON 

func (message ToolResultMessage) MarshalJSON() ([]byte, error)

func (*ToolResultMessage) UnmarshalJSON 

func (message *ToolResultMessage) UnmarshalJSON(data []byte) error

type Transport 

type Transport string
const (
	TransportSSE             Transport = "sse"
	TransportWebSocket       Transport = "websocket"
	TransportWebSocketCached Transport = "websocket-cached"
	TransportAuto            Transport = "auto"
)

type UnknownContentBlock 

type UnknownContentBlock struct {
	Raw json.RawMessage
}

UnknownContentBlock retains a future upstream content shape while this port has not learned its concrete Go type yet.

func (UnknownContentBlock) MarshalJSON 

func (content UnknownContentBlock) MarshalJSON() ([]byte, error)

type Usage 

type Usage struct {
	Input        int64  `json:"input"`
	Output       int64  `json:"output"`
	CacheRead    int64  `json:"cacheRead"`
	CacheWrite   int64  `json:"cacheWrite"`
	Reasoning    *int64 `json:"reasoning,omitempty"`
	TotalTokens  int64  `json:"totalTokens"`
	Cost         Cost   `json:"cost"`
	CacheWrite1h *int64 `json:"cacheWrite1h,omitempty"`
	// contains filtered or unexported fields
}

func (Usage) MarshalJSON 

func (usage Usage) MarshalJSON() ([]byte, error)

func (*Usage) UnmarshalJSON 

func (usage *Usage) UnmarshalJSON(data []byte) error

type UserContent 

type UserContent struct {
	Text   *string
	Blocks UserContentBlocks
}

func NewUserContent 

func NewUserContent(blocks ...UserContentBlock) UserContent

func NewUserText 

func NewUserText(text string) UserContent

func (UserContent) MarshalJSON 

func (content UserContent) MarshalJSON() ([]byte, error)

func (*UserContent) UnmarshalJSON 

func (content *UserContent) UnmarshalJSON(data []byte) error

type UserContentBlock 

type UserContentBlock interface {
	// contains filtered or unexported methods
}

type UserContentBlocks 

type UserContentBlocks []UserContentBlock

func (UserContentBlocks) MarshalJSON 

func (blocks UserContentBlocks) MarshalJSON() ([]byte, error)

func (*UserContentBlocks) UnmarshalJSON 

func (blocks *UserContentBlocks) UnmarshalJSON(data []byte) error

type UserMessage 

type UserMessage struct {
	Content   UserContent `json:"content"`
	Timestamp int64       `json:"timestamp"`
}

func (UserMessage) MarshalJSON 

func (message UserMessage) MarshalJSON() ([]byte, error)

type VercelGatewayRouting 

type VercelGatewayRouting struct {
	Only  *[]string `json:"only,omitempty"`
	Order *[]string `json:"order,omitempty"`
}

Source Files

View all Source files

Directories

Path Synopsis
oauth
Package models contains the generated model catalog and its persisted refresh overlay.
 Package models contains the generated model catalog and its persisted refresh overlay.
cmd/genmodels command
internal/cataloggen
Package cataloggen normalizes the models.dev api.json shape into pi models.
 Package cataloggen normalizes the models.dev api.json shape into pi models.
faux
Package faux provides a scripted, in-memory provider for agent and provider tests.
 Package faux provides a scripted, in-memory provider for agent and provider tests.

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