What is things-you-should-know?
things-you-should-know is a Claude Code mod by fhoces that course example mod: a band above the prompt with the session facts you tend to forget (files edited since the last commit, last turn's cost, last failed command, an oversized CLAUDE.md),. It is listed under Cost & usage and has 1 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | fhoces |
| Repository | fhoces/learning-claude-code |
| Popularity | 1 GitHub stars |
| Category | Cost & usage |
| Security | Review before installing (72/100) |
| Rank | #1,790 of 5,272 Claude Code mods; #307 in Cost & usage |
| Last commit | 2026-10-09 |
| Hooks | 6 events |
| Sees | every prompt, every tool call |
| Draws on | AbovePrompt |
Is things-you-should-know safe to install?
things-you-should-know scores 72/100 on the MCPMods security check: Review before installing. Things to review: starts processes outside the sandbox; watches every prompt or event. 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 |
| Doesn't read environment variables | Pass |
| Watches every prompt or event | Review |
| Doesn't drive Claude | Pass |
| Passes claude plugin validate | Pass |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.command.register | |
$.fs.exists | reads files |
$.fs.read | reads files |
$.process.run | runs processes |
$.state.get | |
$.state.set | |
$.ui.resolve | draws interface |
How do I install things-you-should-know?
- 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/fhoces/learning-claude-code claude plugin validate ./learning-claude-code/module-08/things-you-should-know
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add fhoces/learning-claude-code && claude plugin install things-you-should-know@learning-claude-code
Or ask Claude to set it up
Paste this into Claude Code and it installs things-you-should-know for you:
Install the "things-you-should-know" Claude Code mod from https://github.com/fhoces/learning-claude-code/tree/main/module-08/things-you-should-know. Run claude plugin validate on it first and show me what it can access before you enable it.
More from fhoces/learning-claude-code
This repository has 2 Claude Code mods on MCPMods.
- trip-guard: Course example mod: denies edits to the generated trips.csv, shows the last failed command in the status line, toasts wh (Low risk)