Context engineering

pi-fast-compaction

@tvdavies2TypeScriptMITupdated 2026-09-18

Fast compaction for Pi: Jev-scored verbatim eviction of stale tool history, with LLM summarisation of the evicted transcript as the fallback.

tvdavies/pi-fast-compaction

Where it calls Jev

export const SYSTEM_ONE_URL = "https://api.typesafe.ai/v1/systemone";

src/jev.ts:10

The link points at the commit we read, so the line number still holds.

This one cannot run here

Its question set is assembled at runtime, or never written out literally in the code, so there is nothing to lift. The source link above will show you.

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