What it is
semgrep is a command-line tool that finds lines by what they mean, not by regular expressions. It is useful for mixed-language logs, ticket dumps, and teams querying in different languages.
How it uses Jev
For each line, semgrep asks Jev a typed question: does this line match the given meaning? Jev returns a probability, and semgrep applies a threshold. Meanings combine with AND, OR, and NOT using boolean operations on these probabilities.
Primitives:score
Technique worth stealing
Use calibrated probabilities from a cross-encoder to enable logical AND/OR/NOT on meanings without index building.
Try it
Run npx @uehaj/semgrep -n -e "customer is angry or frustrated" tickets.txt after setting TYPESAFE_API_KEY.
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-centricyes0.95
- Shows a System One patternyes0.75
- Handles uncertaintyyes0.64
- Measuredno0.14
- Runnableyes0.92
- Worth recommendingunclear0.59
- Model replicano0.04
- Problem scopescore on a 0–2 scale1.36
- About Jevyes0.98
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 20 Sept 2026.