Struct ContextCompressionConfig 

pub struct ContextCompressionConfig {
    pub enabled: bool,
    pub threshold_ratio: f64,
    pub protect_first_n: usize,
    pub protect_last_n: usize,
    pub max_passes: u32,
    pub summary_max_chars: usize,
    pub source_max_chars: usize,
    pub timeout_secs: u64,
    pub summary_model: Option<String>,
    pub identifier_policy: String,
    pub tool_result_retrim_chars: usize,
    pub tool_result_trim_exempt: Vec<String>,
}

Fields

enabled: bool

Enable automatic context compression. Default: true.

threshold_ratio: f64

Fraction of context window that triggers compression (0.0–1.0). Default: 0.50.

protect_first_n: usize

Number of messages to protect at the start (system prompt + initial context). Default: 3.

protect_last_n: usize

Number of messages to protect at the end (recent conversation). Default: 4.

max_passes: u32

Maximum compression passes before giving up. Default: 3.

summary_max_chars: usize

Maximum characters retained in stored compaction summary. Default: 4000.

source_max_chars: usize

Safety cap for compaction source transcript passed to the summarizer. Default: 50000.

timeout_secs: u64

Timeout in seconds for the summarization LLM call. Default: 60.

summary_model: Option<String>

Override model for summarization (cheaper/faster). Default: same as main model.

identifier_policy: String

Identifier preservation policy: "strict" or "off". Default: "strict".

tool_result_retrim_chars: usize

Maximum chars for old tool results during fast-trim pass. Default: 2000.

tool_result_trim_exempt: Vec<String>

Tool names exempt from result trimming. Default: [].

Trait Implementations

impl Clone for ContextCompressionConfig

fn clone(&self) -> ContextCompressionConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ContextCompressionConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ContextCompressionConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ContextCompressionConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for ContextCompressionConfig

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl Serialize for ContextCompressionConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.