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@jc4649/pi-context-collapse

v0.1.0

Published

Deterministic write-once collapse of bulky tool outputs, with reversible originals cache

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Links

Git

Maintainers

jimmyc4649jimmyc4649

Keywords

pi-packagepicoding-agentextensioncontext-collapse

Readme

@jc4649/pi-context-collapse

Deterministic, reversible collapse of bulky tool outputs in a pi coding-agent session, to keep the context window lean without losing information.

What it does

On each LLM call (context hook), it walks the transcript newest→oldest and collapses old, non-error tool results that exceed a token threshold — replacing the bulky body with a compact summary plus an expand handle. A protected recent tail (default ~6000 tokens, PI_COLLAPSE_PROTECT_TOKENS) is always left untouched so the prompt prefix stays byte-stable and prompt-cache-friendly.

Collapsed originals are kept in a local SQLite cache (node:sqlite), so the model can call the registered expand tool to recover any collapsed result verbatim.

Compressors

  • log — strips ANSI, drops progress/step-counter noise, dedupes, caps head/tail.
  • json/paths — structural summarization of large JSON and path lists.
  • useless — elides empty or "no matches" search results.

Configuration

  • PI_COLLAPSE_DIR — artifact dir (default <cwd>/.pi/collapse).
  • PI_COLLAPSE_PROTECT_TOKENS — recent-tail tokens never collapsed (default 6000).

Install

pi install @jc4649/pi-context-collapse

MIT