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lossless-compaction

yottayoshida/lossless-compaction

Lossless Claude Code compaction: old tool results to files, recalled exactly.

Agent Decisions0.86Runner-up: Infra / SDKs / Integrations
Automated README summary

Automatically summarized from the README on 27 Oct 2026; not a run by jevbooks. Run instructions and author-reported outcomes still need verification.

What it is

A Claude Code plugin that compacts conversations without summarizing: old tool results move to local files and the agent reads any back exactly by id, for Claude Code users managing long contexts.

How it uses Jev

When the agent calls `find` with a question in words, Jev makes a `Choice` over what was moved out to pick one result to fetch back. Requires a Jev key; without one, `find` does not use Jev.

Primitives:choice

Technique worth stealing

Replace old tool results with file-backed tickets instead of a model-written summary, keeping the transcript word for word.

Try it

/plugin install lossless-compaction --marketplace yottayoshida/lossless-compaction in Claude Code 2.1.287+

View on GitHub

Start using Jev: API key and your first request →

Model judgments from README excerpts

Project signals use repository metadata, an existing summary and the first 700 README characters, not the full project. “Not found” means not detected in that material; it does not establish absence. These are the original judgments with recorded models and dates, not source audits or run results.

Models & evaluation dates

Inclusion gate
jev-1.14.0
Project signals
jev-1.14.0
Category
jev-1.14.0
Pattern tags
jev-1.14.0

Evidence

These signals use repository metadata, an existing summary and at most 700 cleaned README characters. ≥ 0.60 means reported in that excerpt; ≤ 0.40 means not found there. The middle band is inconclusive. None is a source-code audit or a test result. The runnable-tool question excludes research experiments; the recommendation question asks for a learning shortlist, not a quality verdict.

  • Jev is core to the projectnot found in the excerpt0.21
  • Shows a System One patternnot found in the excerpt0.34
  • Describes handling uncertaintynot found in the excerpt0.04
  • Reports measured numbersnot found in the excerpt0.09
  • Is a runnable toolFound in material0.97
  • Top-10 learning shortlist signalnot found in the excerpt0.30
  • Is a replica of the modelnot found in the excerpt0.03
  • Solves a common problem (0–2)score on a 0–2 scale1.09 / 2
  • About JevFound in material0.95
Signals
Jev is core to the project0.21Shows a System One pattern0.34Describes handling uncertainty0.04Reports measured numbers0.09Is a runnable tool0.97Top-10 learning shortlist signal0.30Is a replica of the model0.0300.51Solves a common problem (0–2)1.09 / 2012

no-judgment band (0.40–0.60)

Design patterns
Menu0.48Check-up0.45Funnel0.35Viewfinder0.28Ghostwriter0.2200.51

no-judgment band (0.40–0.60)

The Jev model and date for each judgment stage are listed above. Card written by DeepSeek V4.1 Flash from the README on 27 Oct 2026.