Enum ContextStrategy 

pub enum ContextStrategy {
    None,
    SlidingWindow {
        max_messages: usize,
    },
    Summarize {
        threshold: usize,
        summary_max_tokens: usize,
        model: Option<String>,
    },
    TruncateMiddle {
        keep_first: usize,
        keep_last: usize,
    },
    Hierarchical {
        short_term_turns: usize,
        mid_term_summary_tokens: usize,
        long_term_facts_tokens: usize,
    },
    Auto,
}

Context management strategy for controlling how conversation history is trimmed before being sent to the LLM.

These strategies are independent of the token-budget–based crate::uar::domain::context::ContextStrategy and operate at the message-count / structural level.

Variants

None

Send the full history unmodified.

SlidingWindow

Keep only the most recent max_messages turns.

Fields

max_messages: usize

Summarize

Summarize older messages when the history grows beyond threshold turns. Falls back to a 50-message sliding window until LLM summarisation is implemented.

Fields

threshold: usize

summary_max_tokens: usize

model: Option<String>

TruncateMiddle

Keep the first keep_first messages and the last keep_last messages, dropping everything in the middle.

Fields

keep_first: usize

keep_last: usize

Hierarchical

Three-tier memory management (short / mid / long-term).

Fields

short_term_turns: usize

mid_term_summary_tokens: usize

long_term_facts_tokens: usize

Auto

Select a strategy tuned to the resolved model’s context window at call time (CH-05, strategy_for_model) rather than a fixed configuration. Resolved by resolve_effective_strategy before reaching trim_count/apply_strategy/trim_with_summarization — those low-level functions treat an unresolved Auto as a conservative 128K-context default so they never panic on it.

Trait Implementations

impl Clone for ContextStrategy

fn clone(&self) -> ContextStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContextStrategy

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

Formats the value using the given formatter.

impl Default for ContextStrategy

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ContextStrategy

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for ContextStrategy

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 PartialEq for ContextStrategy

fn eq(&self, other: &ContextStrategy) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for ContextStrategy

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ContextStrategy