compressObservations (observation.ts)

L6: Observation Compression (AGGRESSIVE) Inspired by claw-compactor's 97% compression on tool results. Tool call results (especially large ones) are summarized to key info only. This is the biggest compression win - tool outputs can be 10KB+ but only ~200 chars of actual useful

// Source: https://github.com/BlockRunAI/ClawRouter | License: MIT | Copyright 2026 BlockRunAI
// Provided via justclaw.it.com; keep this notice with the code.
/**
 * L6: Observation Compression (AGGRESSIVE)
 *
 * Inspired by claw-compactor's 97% compression on tool results.
 * Tool call results (especially large ones) are summarized to key info only.
 *
 * This is the biggest compression win - tool outputs can be 10KB+ but
 * only ~200 chars of actual useful information.
 */

import { NormalizedMessage } from "../types.js";

interface ObservationResult {
  messages: NormalizedMessage[];
  charsSaved: number;
  observationsCompressed: number;
}

// Max length for tool results before compression kicks in
const TOOL_RESULT_THRESHOLD = 500;

// Max length to compress tool results down to
cons

... (truncated -- full source via MCP)