What is fast-jev-output?
fast-jev-output is a Claude Code mod by tamaratran that trim long Bash output with Jev before the model sees it (Claude Code plugin). It is listed under Interface and has 164 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | tamaratran |
| Repository | tamaratran/jev-pruner |
| Popularity | 164 GitHub stars |
| Category | Interface |
| Security | Review before installing (60/100) |
| Rank | #99 of 5,272 Claude Code mods; #22 in Interface |
| License | MIT |
| Last commit | 2026-09-30 |
| Stars this week | +3 |
| Hooks | 1 events |
| Sees | Bash calls |
| Draws on | nothing |
Is fast-jev-output safe to install?
fast-jev-output scores 60/100 on the MCPMods security check: Review before installing. Things to review: sends data over the network; writes files or config; reads environment variables. It passed 4 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 |
|---|---|
| Sends data over the network | Review |
| Starts no processes | Pass |
| Writes files or config | Review |
| Reads environment variables | Review |
| Only sees the events it hooks | Pass |
| Doesn't drive Claude | Pass |
| Validator reported problems | Note |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.env.get | reads env vars |
$.fs.exists | reads files |
$.fs.read | reads files |
$.fs.write | writes files |
$.http.fetch | network requests |
$.session.messages | reads the transcript |
$.settings.read | reads settings |
$.ui.log | draws interface |
$.ui.toast | draws interface |
How do I install fast-jev-output?
- 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/tamaratran/jev-pruner claude plugin validate ./jev-pruner/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add tamaratran/jev-pruner && claude plugin install fast-jev-output@fast-jev-output
Or ask Claude to set it up
Paste this into Claude Code and it installs fast-jev-output for you:
Install the "fast-jev-output" Claude Code mod from https://github.com/tamaratran/jev-pruner. Run claude plugin validate on it first and show me what it can access before you enable it.
More from tamaratran/jev-pruner
This repository has 2 Claude Code mods on MCPMods.
- jev-eval-observer: Pass-through evaluation instrumentation; never changes tool results. (Low risk)