context

Sep 14, 2026

Changes in this version

type Config

+ Summarizer SummarizeFunc

type Engine

+ func (e *Engine) EnableCompaction(threshold int, fn SummarizeFunc)

+ type SummarizeFunc func(ctx context.Context, messages []provider.Message) (string, error)

type WindowConfig

+ Summarizer SummarizeFunc

Aug 10, 2026

Changes in this version

+ var ErrCompactionFailed = errors.New("compaction failed")

+ type CompactionError struct

+ Cause error

+ Reason string

+ func NewCompactionError(reason string, cause error) *CompactionError

+ func (e *CompactionError) Error() string

+ func (e *CompactionError) Is(target error) bool

+ func (e *CompactionError) Unwrap() error

type ModelTokenCounter

+ func NewModelTokenCounter(model string) *ModelTokenCounter

Apr 26, 2026

Changes in this version

+ type Config struct

+ CompactionEnabled bool

+ CompactionThreshold int

+ MaxMessages int

+ MaxTokens int

+ ReserveTokens int

+ TokenCounter TokenCounter

+ func DefaultConfig() Config

+ type Engine struct

+ func New(config Config) *Engine

+ func (e *Engine) Apply(messages []provider.Message) []provider.Message

+ func (e *Engine) AvailableTokens(messages []provider.Message) int

+ func (e *Engine) EstimateTokens(messages []provider.Message) int

+ type MessagePair struct

+ Assistant provider.Message

+ User provider.Message

+ func ExtractPairs(messages []provider.Message) []MessagePair

+ type ModelTokenCounter struct

+ Fallback TokenCounter

+ Model string

+ func (c *ModelTokenCounter) Count(msg provider.Message) int

+ func (c *ModelTokenCounter) CountText(text string) int

+ type SimpleTokenCounter struct

+ CharsPerToken int

+ func (c *SimpleTokenCounter) Count(msg provider.Message) int

+ func (c *SimpleTokenCounter) CountText(text string) int

+ type TokenBudget struct

+ Reserved int

+ Total int

+ Used int

+ func (b *TokenBudget) Available() int

+ func (b *TokenBudget) Consume(tokens int)

+ func (b *TokenBudget) OverBudget() bool

+ func (b *TokenBudget) Reset()

+ type TokenCounter interface

+ Count func(msg provider.Message) int

+ CountText func(text string) int

+ type Window struct

+ func NewWindow(config WindowConfig) *Window

+ func (w *Window) Apply(messages []provider.Message) []provider.Message

+ type WindowConfig struct

+ MaxMessages int

+ MaxTokens int

+ Strategy WindowStrategy

+ TokenCounter TokenCounter

+ type WindowStrategy int

+ const WindowStrategyImportant

+ const WindowStrategyRecent

+ const WindowStrategySummarize