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TokenThresholdCompressor

wesichain_graph::react_subgraph

Struct TokenThresholdCompressor 

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

Compresses message history when the total character count exceeds max_chars.

Uses an LLM to produce a one-sentence summary that replaces the middle messages (keeping the system prompt and the last user message intact).

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impl TokenThresholdCompressor

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pub fn new( max_chars: usize, llm: Arc<dyn Runnable<LlmRequest, LlmResponse>>, ) -> Self

max_chars / 4 approximates the token count.

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impl ContextCompressor for TokenThresholdCompressor

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fn should_compress(&self, messages: &[Message]) -> bool

Return true if the current message list should be compressed.
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fn compress<'life0, 'async_trait>( &'life0 self, messages: Vec<Message>, ) -> Pin<Box<dyn Future<Output = Result<Vec<Message>, WesichainError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Replace the message list with a shorter summarised version.

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