What is optim-jev?
optim-jev is a Claude Code mod by Oqura-ai that jev based token-usage optimization tools for Claude Code workflows. It is listed under Cost & usage and has 36 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | Oqura-ai |
| Repository | Oqura-ai/optim-jev |
| Popularity | 36 GitHub stars |
| Category | Cost & usage |
| Security | High risk (56/100) |
| Rank | #256 of 5,272 Claude Code mods; #41 in Cost & usage |
| Last commit | 2026-10-18 |
| Hooks | 14 events |
| Sees | Edit|Write|NotebookEdit|Bash|PowerShell calls, compaction, every prompt, every skill, subagent spawns |
| Draws on | AbovePrompt, CommandOutput |
Is optim-jev safe to install?
optim-jev scores 56/100 on the MCPMods security check: High risk. Things to review: starts processes outside the sandbox; reads environment variables; watches every prompt or event. It passed 3 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| No network access | Pass |
| Starts processes outside the sandbox | Review |
| Writes no files or config | Pass |
| Reads environment variables | Review |
| Watches every prompt or event | Review |
| Drives Claude (model calls, prompts) | Note |
| Passes claude plugin validate | Pass |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.clock.every | |
$.command.register | |
$.command.run | drives Claude |
$.env.get | reads env vars |
$.model.complete | drives Claude |
$.process.run | runs processes |
$.session.compact | drives Claude |
$.session.id | |
$.session.messages | reads the transcript |
$.session.model | |
$.session.root | |
$.session.usage | |
$.settings.read | reads settings |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.tool.list | |
$.ui.blit | draws interface |
$.ui.invalidate | draws interface |
$.ui.log | draws interface |
$.ui.resolve | draws interface |
$.ui.status | draws interface |
$.ui.toast | draws interface |
How do I install optim-jev?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/Oqura-ai/optim-jev claude plugin validate ./optim-jev/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add Oqura-ai/optim-jev && claude plugin install optim-jev@optim-jev
Or ask Claude to set it up
Paste this into Claude Code and it installs optim-jev for you:
Install the "optim-jev" Claude Code mod from https://github.com/Oqura-ai/optim-jev. Run claude plugin validate on it first and show me what it can access before you enable it.