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deepseek-harness/packages/compact
Yichen Jiang 8bc62e1013 Merge remote-tracking branch 'origin/master' into worktree/session-reference
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compact/ — compaction capability family

A compaction capability family (see capability seams): an abstract interface, a summarizing backend, a model-free tool-result pruning companion, and a deferred model-facing consumer. All product packages.

Package Role ctx key
compact/ Abstract compaction seam (interface + compact/* events + CompactionResult) ctx.compact
compact-basic/ A backend: ctx.tokenMeter pressure + token-budget retention + llm.stream() summarization (registers ctx.compact)
compact-tool-result-prune/ Optional model-free head/middle/tail rewriting before summary compaction ctx.toolResultPrune
tool-compact/ (deferred) Model-facing /compact tool over ctx.compact (registers on ctx.tools)

The interface lives at compact/compact/, the backend at compact/compact-basic/, and deterministic pruning at compact/compact-tool-result-prune/. Unlike the bash seam, the interface depends on dsh-session and dsh-llm because its verbs are defined over a Session and its output uses ContentBlock. That deviation is recorded in the compaction capability-seam Agent Note. Token measurement remains a reusable LLM-family service; a template- or model-backed compactor can replace compact-basic without changing the meter, pruner, or callers.