What is isobar?
isobar is a Claude Code mod by r3al1tym. isobar, a Claude Code mod: a weather map for the session's change, drawn over a fixed map of the codebase, to read a complex change at a glance. A red storm sits on what Claude edited,. It is listed under Interface and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | r3al1tym |
| Repository | r3al1tym/isobar |
| Popularity | no public popularity data yet |
| Category | Interface |
| Security | Review before installing (72/100) |
| Rank | #4,342 of 5,272 Claude Code mods; #1,789 in Interface |
| License | MIT |
| Last commit | 2026-10-08 |
| Hooks | 8 events |
| Sees | every tool call |
| Draws on | Pane |
Is isobar safe to install?
isobar 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.after | |
$.clock.now | |
$.command.register | |
$.config.list | |
$.env.get | reads env vars |
$.fs.exists | reads files |
$.fs.read | reads files |
$.fs.stat | reads files |
$.model.complete | drives Claude |
$.process.run | runs processes |
$.process.spawn | |
$.prompt.submit | drives Claude |
$.session.messages | reads the transcript |
$.session.model | |
$.state.get | |
$.state.set | |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.close | draws interface |
$.ui.open | draws interface |
$.ui.panes | draws interface |
$.ui.resolve | draws interface |
$.ui.toast | draws interface |
How do I install isobar?
- 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/r3al1tym/isobar claude plugin validate ./isobar/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add r3al1tym/isobar && claude plugin install isobar@isobar
Or ask Claude to set it up
Paste this into Claude Code and it installs isobar for you:
Install the "isobar" Claude Code mod from https://github.com/r3al1tym/isobar. Run claude plugin validate on it first and show me what it can access before you enable it.