Struct ContextWindowPolicy 

pub struct ContextWindowPolicy {
    pub max_context_tokens: usize,
    pub max_output_tokens: usize,
    pub min_recent_messages: usize,
    pub enable_prompt_cache: bool,
    pub autocompact_threshold: Option<usize>,
    pub compaction_mode: ContextCompactionMode,
    pub compaction_raw_suffix_messages: usize,
}

Context window management policy.

Pure data struct used by [ContextPlugin] to configure context management. Lives in the contract layer so plugin crates can construct it without depending on tirea-agentos.

Fields

max_context_tokens: usize

Model’s total context window size in tokens.

max_output_tokens: usize

Tokens reserved for model output.

min_recent_messages: usize

Minimum number of recent messages to always preserve (never truncated).

enable_prompt_cache: bool

Whether to enable prompt caching (Anthropic cache_control: ephemeral).

autocompact_threshold: Option<usize>

Token count threshold that triggers auto-compaction. None disables. Used by ContextPlugin to decide when to compact history.

compaction_mode: ContextCompactionMode

Auto-compaction strategy to use when autocompact_threshold is reached.

compaction_raw_suffix_messages: usize

Number of recent raw messages to preserve in ContextCompactionMode::KeepRecentRawSuffix mode.

Trait Implementations

impl Clone for ContextWindowPolicy

fn clone(&self) -> ContextWindowPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContextWindowPolicy

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

Formats the value using the given formatter.

impl Default for ContextWindowPolicy

fn default() -> ContextWindowPolicy

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ContextWindowPolicy

fn deserialize<__D>( __deserializer: __D, ) -> Result<ContextWindowPolicy, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ContextWindowPolicy

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

where __S: Serializer,

Serialize this value into the given Serde serializer.