What is session-usage?
session-usage is a Claude Code mod by shumatsumonobu that 週の利用上限を、どのセッションが使ったかをグラフで表示(起動すると画面の右に自動で開く). It is listed under Cost & usage and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | shumatsumonobu |
| Repository | shumatsumonobu/claude-mods-bench |
| Popularity | no public popularity data yet |
| Category | Cost & usage |
| Security | Low risk (88/100) |
| Rank | #4,617 of 5,272 Claude Code mods; #897 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-17 |
| Hooks | 6 events |
| Sees | every prompt |
| Draws on | Pane, AbovePrompt |
Is session-usage safe to install?
session-usage scores 88/100 on the MCPMods security check: Low risk. Things to review: watches every prompt or event. It passed 7 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 no processes | Pass |
| Writes no files or config | Pass |
| Doesn't read environment variables | Pass |
| Watches every prompt or event | Review |
| Doesn't drive Claude | Pass |
| 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 | |
$.session.cwd | |
$.session.id | |
$.session.usage | |
$.store.delete | keeps its own state |
$.store.get | keeps its own state |
$.store.keys | keeps its own state |
$.store.set | keeps its own state |
$.ui.invalidate | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
How do I install session-usage?
- 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/shumatsumonobu/claude-mods-bench claude plugin validate ./claude-mods-bench/mods/session-usage
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add shumatsumonobu/claude-mods-bench && claude plugin install session-usage@claude-mods-bench
Or ask Claude to set it up
Paste this into Claude Code and it installs session-usage for you:
Install the "session-usage" Claude Code mod from https://github.com/shumatsumonobu/claude-mods-bench/tree/main/mods/session-usage. Run claude plugin validate on it first and show me what it can access before you enable it.
More from shumatsumonobu/claude-mods-bench
This repository has 4 Claude Code mods on MCPMods.
- file-map: Claude が読んだファイル・書き換えたファイルを、画面の右に一覧表示(最初の読み書きで自動で開く) (Low risk)
- mod-permissions: 入れたほかの mod の通信・コマンド・ファイル操作を、実行前に止めて確認し、mod ごとに許すかを決める (Review before installing)
- security-scan: 変更中のファイルを Semgrep で検査し、検出結果を画面の右で1件ずつ選別、本物だけ Claude に修正を依頼 (Low risk)