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Jev Mode — tiffygk

Claude Code and Codex skills plus a study course for building with Jev, TypeSafe's System One model. The materials pull from Jev's canonical cookbooks and docs, and the Ratings folder lists rated Jev projects and an evaluation methodology.
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Stars
12
Language
HTML
Reading time
2 min
Published by
Community
Author
tiffygk
Last verified
Oct 2026

tiffygk/jev-mode

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Claude Code/Codex skills and learning resources that make it easy to build with Jev, TypeSafe's System One model. All materials pull directly from their canonical cookbooks and documentation.

Forks
2
Last pushed
Updated Oct 2026

Repo stats from the GitHub API, cached Oct 2026.

Tagscommunitygithubskillsclaude-codecodex
Works forJev for CodeJev for Evaluation
Used inJev for Software & DevTools
Capabilities
Open source

Highlights

  • Skills for Claude Code and Codex, plus a study course, for building with Jev (TypeSafe's System One model).
  • Ratings folder lists rated Jev projects and the eval methodology for user safety and quality.
  • Jevaluate reads a Jev project's code and rates how well it uses Jev, with provenance for every finding.
  • Jev Sources finds the TypeSafe docs, patterns, cookbook and blog sections that answer a Jev question.
  • Not every skill calls Jev: some are guides and LLM evaluators for building with it; topics include jev-api, rlcd and skill-md.

Watch out

README and GitHub metadata reviewed 2026-10-17. The digest truncates the skill table after the Jev Sources row, so the remaining skills are unknown; the repo lists license NOASSERTION and the excerpt shows no install or invocation commands.

Questions about this entry

Short answers drawn from the linked project or page.

Reactions & coverage

Posts, threads, and videos about this entry from around the web.

YouTube: Ray Amjad puts Jev inside an agentic coding loop and looks at what it costs to run.

YouTube: RoboNuggets puts Jev to work inside Claude Code.

Reddit: A Claude Code mod replaces the auto-mode classifier with Jev, 2x faster.

Other listings of this project

Forks and copies of this project in the directory. This entry is the canonical one.

jev-mode
4GitHub stars
Python library and CLI that moves bulk semantic judgments — ticket triage, stale-file tagging, bug or question routing — out of the agent's context into typed Jev questions, with a measured comparison against an in-context control.
Jev Practices & Patterns#community#awesomejev#catalog-import
Communityddfeyes/jev-modePython

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