I made a DuckDB extension where you can use @typesafeai 's Jev to do quick classification of rows in any csv/parquet file or duckdb table about 10sec for 1k rows ~ better than using an LLM, way more ergonomic than a classifier game-changing for data analysis!
OMP Jev Compaction
An omp plugin that does verbatim Jev-scored context reduction: stale tool calls and results are truncated to a short head plus a recoverable note, while sticky rewrites keep the provider's prompt cache intact.
- Category
- Tools & Integrations
- Published by
- Community
- Author
- jerryfane
- Added
- 2026-09-22
Highlights
- Nothing is rewritten or summarized: stale tool calls are truncated to a short head plus a recoverable note.
- A 16,198-message replay produced 3 rewrites and 37 reuses over 40 requests, with 0 prefix breaks across 39 checks.
- A cache guard skips sessions at 80% or more cache reads; on 14 live sessions it protected $1.81 per request round while capturing $2.61.
- One client covers the TypeSafe API and OpenRouter; OpenRouter measured about 430 ms and $0.0000198 per decision request.
- Dropped payloads are written to ~/.omp/jev-spill/<hash>.txt and recovered with one read instead of re-running the tool.
Quickstart
omp plugin install jerryfane/omp-jev-compaction
ompWatch out
MIT-licensed, as is the vendored fast-jev-compaction core; requires omp plus a TypeSafe or OpenRouter key, and every reduction sends conversation state, including tool names, inputs, and message text, to the decision endpoint.
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