What is subagent-tree?
subagent-tree is a Claude Code mod by bobtat that a live /agents-tree pane showing the session's subagents as a tree — status, how long each has run, its tool calls and steps, the tool it is on now and the output tokens it used. It is listed under Cost & usage and has 2 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | bobtat |
| Repository | bobtat/claude-plugins |
| Popularity | 2 GitHub stars |
| Category | Cost & usage |
| Security | Low risk (100/100) |
| Rank | #1,120 of 5,272 Claude Code mods; #201 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-14 |
| Hooks | 7 events |
| Sees | every tool call |
| Draws on | Pane |
Is subagent-tree safe to install?
subagent-tree scores 100/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 8 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 |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.agent.list | |
$.clock.every | |
$.clock.now | |
$.command.register | |
$.state.get | |
$.state.set | |
$.ui.close | draws interface |
$.ui.invalidate | draws interface |
$.ui.log | draws interface |
$.ui.open | draws interface |
$.ui.panes | draws interface |
$.ui.resolve | draws interface |
How do I install subagent-tree?
- 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/bobtat/claude-plugins claude plugin validate ./claude-plugins/plugins/subagent-tree
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add bobtat/claude-plugins && claude plugin install subagent-tree@bobtat-plugins
Or ask Claude to set it up
Paste this into Claude Code and it installs subagent-tree for you:
Install the "subagent-tree" Claude Code mod from https://github.com/bobtat/claude-plugins/tree/main/plugins/subagent-tree. Run claude plugin validate on it first and show me what it can access before you enable it.
More from bobtat/claude-plugins
This repository has 2 Claude Code mods on MCPMods.
- cost-ledger: Tracks what Claude Code costs — session, calendar-week and calendar-month totals with the month's pace and week-over-wee (High risk)