Module pruner 

Progressive Pruner Module

This module provides progressive pruning functionality for Tool outputs to manage context size while preserving important information.

Pruning Strategies

• Soft Trim: Preserves head and tail of content, replacing middle with “…”
• Hard Clear: Completely replaces content with a placeholder

Example

use aster::context::pruner::ProgressivePruner;
use aster::context::PruningConfig;

let config = PruningConfig::default();
let content = "Very long tool output...";

// Soft trim: keep head and tail
let trimmed = ProgressivePruner::soft_trim(content, 500, 300);

// Hard clear: replace with placeholder
let cleared = ProgressivePruner::hard_clear("[content cleared]");

Structs

ProgressivePruner

Progressive pruner for Tool output management.