What is session-band?
session-band is a Claude Code mod by JohnnyVizz that band above the prompt: turn number, output speed, turn and session cost, prompt cache countdown and context fill; notifies before the cache expires. It is listed under Cost & usage and has 216 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | JohnnyVizz |
| Repository | JohnnyVizz/claude-kit |
| Popularity | 216 GitHub stars |
| Category | Cost & usage |
| Security | Review before installing (72/100) |
| Rank | #94 of 5,272 Claude Code mods; #14 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-12 |
| Stars this week | +70 |
| Hooks | 6 events |
| Sees | only the events it hooks |
| Draws on | AbovePrompt |
Is session-band safe to install?
session-band scores 72/100 on the MCPMods security check: Review before installing. Things to review: starts processes outside the sandbox; reads environment variables. It passed 5 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 |
| Only sees the events it hooks | Pass |
| Drives Claude (model calls, prompts) | Note |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.clock.every | |
$.clock.now | |
$.command.register | |
$.env.get | reads env vars |
$.fs.exists | reads files |
$.fs.read | reads files |
$.process.run | runs processes |
$.session.cwd | |
$.session.id | |
$.session.usage | |
$.state.get | |
$.state.set | |
$.tool.call | drives Claude |
$.ui.resolve | draws interface |
$.ui.toast | draws interface |
How do I install session-band?
- 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/JohnnyVizz/claude-kit claude plugin validate ./claude-kit/plugins/session-band
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add JohnnyVizz/claude-kit && claude plugin install session-band@claude-kit
Or ask Claude to set it up
Paste this into Claude Code and it installs session-band for you:
Install the "session-band" Claude Code mod from https://github.com/JohnnyVizz/claude-kit/tree/main/plugins/session-band. Run claude plugin validate on it first and show me what it can access before you enable it.
More from JohnnyVizz/claude-kit
This repository has 2 Claude Code mods on MCPMods.
- savvy-progress: Progress bar above the prompt for /savvy-flow, plus an agents panel (/agents-info): running, finished and planned subage (Low risk)