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EnhancedContextManager

aster::context::manager

Struct EnhancedContextManager 

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pub struct EnhancedContextManager { /* private fields */ }
Expand description

Enhanced context manager with compression, summarization, and statistics.

Manages conversation history with automatic compression when token limits are approached, supports AI-powered summarization, and provides detailed statistics about context usage.

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impl EnhancedContextManager

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pub fn new(config: ContextConfig) -> Self

Create a new EnhancedContextManager with the given configuration.

§Arguments
  • config - Configuration for token limits, compression thresholds, etc.
§Returns

A new EnhancedContextManager instance.

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pub fn with_default_config() -> Self

Create a new EnhancedContextManager with default configuration.

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pub fn set_system_prompt(&mut self, prompt: impl Into<String>)

Set the system prompt for the conversation.

§Arguments
  • prompt - The system prompt text
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pub fn system_prompt(&self) -> &str

Get the current system prompt.

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pub fn set_summarizer_client(&mut self, client: Arc<dyn SummarizerClient>)

Set the summarizer client for AI-powered summarization.

§Arguments
  • client - The summarizer client implementation
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pub fn has_summarizer_client(&self) -> bool

Check if AI summarization is available.

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pub fn add_turn( &mut self, user: Message, assistant: Message, api_usage: Option<TokenUsage>, )

Add a conversation turn (user message + assistant response).

Estimates tokens for the turn and optionally applies incremental compression if enabled in the configuration.

§Arguments
  • user - The user’s message
  • assistant - The assistant’s response
  • api_usage - Optional token usage from the API call
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pub fn turn_count(&self) -> usize

Get the number of conversation turns.

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pub fn turns(&self) -> &[ConversationTurn]

Get a reference to all conversation turns.

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pub fn turns_mut(&mut self) -> &mut Vec<ConversationTurn>

Get a mutable reference to all conversation turns.

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pub fn get_messages(&self) -> Vec<Message>

Get all messages for an API call.

Returns messages in the correct order for sending to an LLM:

  1. System prompt (if set)
  2. Summary of old turns (if any are summarized)
  3. All conversation turns (user/assistant pairs)
§Returns

A vector of messages ready for an API call.

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pub fn get_messages_collapsed(&self) -> Vec<Message>

Get messages with tool references collapsed.

Similar to get_messages() but collapses tool_reference blocks to placeholder text to save tokens.

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pub fn get_used_tokens(&self) -> usize

Get the number of tokens currently used in context.

Includes system prompt tokens and all turn tokens.

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pub fn get_available_tokens(&self) -> usize

Get the number of available tokens (max - used).

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pub async fn maybe_compress(&mut self) -> Result<(), ContextError>

Check and perform compression if threshold is exceeded.

This method is called automatically after adding turns if auto-compression is needed.

§Returns

Ok(()) if compression was successful or not needed.

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pub async fn compact(&mut self) -> Result<(), ContextError>

Force compression of old conversation turns.

Summarizes older turns while keeping recent messages intact. Uses AI summarization if available, otherwise falls back to simple text extraction.

§Returns

Ok(()) if compression was successful.

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pub fn export(&self) -> ContextExport

Export the context state for persistence.

§Returns

A ContextExport struct that can be serialized.

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pub fn import(&mut self, data: ContextExport)

Import context state from an export.

Replaces the current state with the imported data.

§Arguments
  • data - The exported context data to import
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pub fn clear(&mut self)

Clear all conversation history.

Resets turns and statistics but preserves configuration and system prompt.

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pub fn reset(&mut self)

Clear everything including system prompt.

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pub fn get_stats(&self) -> ContextStats

Get statistics about the current context state.

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pub fn get_compression_details(&self) -> CompressionDetails

Get detailed compression information.

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pub fn get_context_usage(&self) -> ContextUsage

Get current context usage information.

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pub fn is_near_limit(&self) -> bool

Check if context is near the limit.

Returns true if usage exceeds the summarize threshold.

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pub fn get_formatted_report(&self) -> String

Get a formatted statistics report.

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pub fn analyze_compression(&self) -> CompressionResult

Analyze compression effectiveness.

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pub fn collapse_tool_references(message: &Message) -> Message

Collapse tool references in a message to placeholder text.

Detects tool_reference content blocks and replaces them with a placeholder to save tokens.

§Arguments
  • message - The message to process
§Returns

A new message with tool references collapsed.

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pub fn config(&self) -> &ContextConfig

Get a reference to the current configuration.

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pub fn config_mut(&mut self) -> &mut ContextConfig

Get a mutable reference to the configuration.

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pub fn set_config(&mut self, config: ContextConfig)

Update the configuration.

Trait Implementations§

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impl Default for EnhancedContextManager

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fn default() -> Self

Returns the “default value” for a type. Read more

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