What is vivarium?
vivarium is a Claude Code mod by claytonmgravatt that shows each subagent as a pixel Clawd in a strip above the prompt: walking while it works, asleep when it finishes, sized by model. Click one for its details. It is listed under Agents & automation and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | claytonmgravatt |
| Repository | claytonmgravatt/claude-mods |
| Popularity | no public popularity data yet |
| Category | Agents & automation |
| Security | Low risk (96/100) |
| Rank | #2,919 of 5,272 Claude Code mods; #223 in Agents & automation |
| Last commit | 2026-10-06 |
| Hooks | 7 events |
| Sees | every tool call, subagent spawns |
| Draws on | AbovePrompt |
Is vivarium safe to install?
vivarium scores 96/100 on the MCPMods security check: Low risk. No checks raised a concern. 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 |
| Only sees the events it hooks | Pass |
| Doesn't drive Claude | Pass |
| Passes claude plugin validate | Pass |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.clock.now | |
$.command.register | |
$.state.get | |
$.state.set | |
$.ui.close | draws interface |
$.ui.resolve | draws interface |
$.ui.toast | draws interface |
How do I install vivarium?
- 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/claytonmgravatt/claude-mods claude plugin validate ./claude-mods/plugins/vivarium
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add claytonmgravatt/claude-mods && claude plugin install vivarium@claude-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs vivarium for you:
Install the "vivarium" Claude Code mod from https://github.com/claytonmgravatt/claude-mods/tree/main/plugins/vivarium. Run claude plugin validate on it first and show me what it can access before you enable it.