Struct SessionPruneConfig 

pub struct SessionPruneConfig {
    pub keep_recent_n: usize,
    pub pruned_tool_result_max_bytes: usize,
    pub preserve_task: bool,
}

Configuration for session-level pruning of old tool results.

Before each LLM call, old tool results are truncated in-place to reduce token usage. Recent messages are preserved at full fidelity.

Fields

keep_recent_n: usize

Number of recent user/assistant message pairs to keep at full fidelity. Default: 2.

pruned_tool_result_max_bytes: usize

Maximum bytes for a pruned tool result. Content exceeding this is replaced with head + tail + [pruned: N bytes]. Default: 200.

preserve_task: bool

Whether to preserve the first user message (task) from pruning. Default: true.

Trait Implementations

impl Clone for SessionPruneConfig

fn clone(&self) -> SessionPruneConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SessionPruneConfig

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

Formats the value using the given formatter.

impl Default for SessionPruneConfig

fn default() -> Self

Returns the “default value” for a type.