Module compaction 

Structured conversation compaction for context overflow handling

When conversation history exceeds context limits, this module provides tools to compact the history while preserving key information like:

• User’s original intent and requirements
• Important decisions made
• Code changes and their rationale
• Error messages and debugging information

Structs

CodeChange

A code change with metadata

CompactionResult

Compaction result with statistics

CompactionStrategy

Compaction strategy for preserving different types of information

ErrorSolution

An error and its solution

ParsedCompactionSummary

Parse a structured compaction summary

Functions

build_compaction_prompt

Build a structured compaction prompt for the LLM

compact_messages

Compact messages based on the given strategy

parse_compaction_summary

Parse a structured compaction summary from LLM output

parse_compressed_sections

Parse ### File: … subsections from the Code Changes section.

parse_preserved_sections

Parse ### Error: … subsections from the Errors and Solutions section.

parse_summary_field

Parse a named text field from the summary (joins non-empty lines, trims).

parse_token_counts

Parse bullet-list items (- prefix) from section text.

summary_to_message

Convert a parsed compaction summary back to a message