winnow

A calibrated context sieve for Claude Code: every tool result is judged by a System One model before it enters context.

How it uses Jev

Terms used below. The judge is the model that answers one yes/no question per block ("is this block needed for the current task?") with a probability. By default that is Jev , TypeSafe AI's System One model: a model that returns calibrated probabilities for typed questions instead of generating text, so a hundred questions come back in one call in a few hundred milliseconds. Jev is in early access. The adapter is Ty…

Getting started

Requirements: Python 3.10+, uv, Claude Code 2.1.260 or newer with function hooks enabled (early access; one line in settings, below).

Source: community catalog. Details and metrics reflect the published community snapshot and are not a performance endorsement. Documentation details extracted from GitHub · the README.

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