Module: Xeno::Compaction

Included in:: TurnRunner

Defined in:: lib/xeno/compaction.rb

Overview

Summarize-and-replace compaction, run as a claimed turn (kind: "compaction") so it is exclusive, queues behind active work, and replays safely after a crash.

The system prompt and the last compaction_tail_turns turns survive verbatim; everything before them is summarized by a throwaway model call and replaced in place.

Constant Summary collapse

SUMMARY_PREFIX = :nodoc:

"[Conversation summary — earlier messages were compacted]".freeze

COMPACTION_PROMPT =

<<~PROMPT.freeze
  You are compacting an agent conversation to reclaim context space.
  Write a dense summary of the transcript below; it will REPLACE those
  messages permanently. Separate completed work and decisions from
  remaining or open work. Retain every constraint, preference, fact,
  identifier, amount, and reference a future turn could need. Output
  only the summary text.
PROMPT