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Smarter cron with Jev
- Forks
- 2
- Last pushed
- Updated Oct 2026
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Jev directory
CommunityJev Tools & CLIs
jevgate (stdin gate)
A Rust CLI that gates shell pipelines on a Jev-style yes/no judgment: it reads text on stdin, asks the classifier a question, and passes the text through only when P(yes) clears a threshold — the README calls it smarter cron.
- Stars
- 8
- Language
- Rust
- License
- MIT
- Reading time
- 2 min
- Published by
- Community
- Author
- gordonbrander
- Last verified
- Oct 2026
Highlights
- Reads text on stdin, asks a Jev-style classifier a yes/no question, and passes it through when P(yes) clears the threshold, like grep.
- Commands after -- run only when the gate passes: some-producer | jevgate "..." -- notify.sh.
- Install with cargo install --path . (Rust edition 2024, 1.85+) and export an API key as JEV_API_KEY.
- Verbose mode logs the decision: jevgate: pass score=0.98 threshold=0.50 model=jev-1.13.0.
- MIT licensed Rust: 8 stars, 2 forks, created 2026-10-14, pushed 2026-10-15 — the newest repo in this batch.
Quickstart
bash
some-producer | jevgate "Is this an urgent outage report?" | some-consumer
some-producer | jevgate "Is this an urgent outage report?" -- notify.sh
echo "Production API is returning 500s for all users since 09:12" | jevgate -v "Does this report an outage?"Watch out
README reviewed 2026-10-17; the digest truncates the rejected-input example and links Jev to a third-party explainer page, so the API endpoint and client library are not documented here. No benchmarks, pricing, or configurable threshold options appear.
Questions about this entry
Short answers drawn from the linked project or page.
A small Rust CLI by gordonbrander that gates a shell pipeline on a yes/no judgment: it reads text on stdin, asks a Jev-style classifier a question about that text, and only passes the text through when the probability of yes clears a threshold.
The README calls it a Jev-style classifier, and the verbose log shows model=jev-1.13.0. It asks the model one yes/no question per invocation and needs an API key exported as JEV_API_KEY, obtained from TypeSafe per the quick start.
With a Rust toolchain (edition 2024, Rust 1.85 or newer), clone the repo and run cargo install --path ., which puts the binary in ~/.cargo/bin. Building without installing via cargo build --release leaves it at target/release/jevgate.
Commands placed after -- run only when the gate passes: some-producer | jevgate "Is this an urgent outage report?" -- notify.sh runs notify.sh only if the text is judged urgent. Without -- the tool behaves like a filter.
With -v, jevgate writes a line to stderr such as 'jevgate: pass score=0.98 threshold=0.50 model=jev-1.13.0' and prints the original input to stdout. A rejected input emits nothing.
Piping a producer — a log tail, a mail fetcher, a scraper — through jevgate so downstream jobs fire only on relevant text, for example notifying only when an input describes an outage rather than a lunch menu.
No. The quick start requires getting an API key from TypeSafe and exporting it as JEV_API_KEY, and the classifier runs remotely. The README states no offline or local-model mode.
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Forks and copies of this project in the directory. This entry is the canonical one.
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