What it is
OpenViking is an open-source context database for AI agents, organizing knowledge, memory, and skills as a virtual filesystem under viking://. It provides search, retrieval, and session management for agent developers.
How it uses Jev
The Jev rerank client scores each candidate document with jev-latest against api.typesafe.ai, treating the returned probability as relevance. This is used because TypeSafe exposes no native rerank endpoint.
Primitives:score
Technique worth stealing
Using a probability-scoring model as a reranker when no native rerank endpoint exists.
Try it
pip install openviking, then openviking-server init and openviking-server.
Evidence
Each line is one question put to Jev about the README. ≥ 0.60 reads as yes, ≤ 0.40 as no; in between Jev is not making a call.
- Jev-centricno0.08
- Shows a System One patternno0.11
- Handles uncertaintyno0.04
- Measuredno0.05
- Runnableyes0.85
- Worth recommendingno0.27
- Model replicano0.05
- Problem scopescore on a 0–2 scale1.76
- About Jevyes0.82
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 23 Sept 2026.