context

package

v0.2.0 Latest Latest Go to latest Published: Sep 6, 2025 License: MIT Imports: 9 Imported by: 0

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type Assembler struct {
	Provider Provider
	Budget   Budget
}

Assembler orchestrates provider and budget components.

func (a Assembler) Assemble(input string) []model.ChatMessage

Assemble builds final messages from input through provider and budget.

func (a Assembler) AssembleWithTools(input string, specs []model.ToolSpec) []model.ChatMessage

AssembleWithTools builds messages and applies budgeting with tool schema overhead.

type Budget struct {
	ModelName string
}

Budget enforces token limits on message history.

func (b Budget) Apply(msgs []model.ChatMessage) []model.ChatMessage

Apply trims messages to fit within the model's context window budget.

func (b Budget) ApplyWithTools(msgs []model.ChatMessage, specs []model.ToolSpec) []model.ChatMessage

ApplyWithTools trims messages accounting for tool schema token overhead. If specs is nil it behaves like the legacy Apply.

type Provider struct {
	Prompt  string
	History []memory.Step
}

Provider builds chat messages from prompt, history, and user input.

func (p Provider) Provide(input string) []model.ChatMessage

Provide assembles context messages with limited history to prevent exponential growth.