SubagentStop

SubagentStop is a hook for Claude Code from NYCU-Chung/cc-statusline. Its token cost is not measured, scanned A, a copy of SubagentStart, MIT.

A hook that runs a Node.js tracking script whenever a subagent finishes. A subagent is a separate AI worker handling part of a larger coding task.

In plain words
What is it for?
Use it to trigger subagent completion tracking through subagent-tracker.js.
Why use it?
It can record or react to completed subagent work automatically, without requiring a manual command after each worker finishes.

Hook for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable. Also seen: mentions subagents.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the cc-statusline plugin — 1 command, 6 hooks shipped together

One of 6 entries in hooks.json — they are configured in one file and arrive together.

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add NYCU-Chung/cc-statusline
Claude Code
/plugin install cc-statusline

Made for: Claude Code.

Or install cc-statusline, the plugin that ships this one along with the rest of its 1 command, 6 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for SubagentStop

README.md
[![agentmods](https://agentmods.dev/badge/hooks/nycu-chung/cc-statusline/subagent-stop.svg)](https://agentmods.dev/hooks/nycu-chung/cc-statusline/subagent-stop)
Your own site
<a href="https://agentmods.dev/hooks/nycu-chung/cc-statusline/subagent-stop"><img src="https://agentmods.dev/badge/hooks/nycu-chung/cc-statusline/subagent-stop.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin 91% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

SubagentStop scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the commands this hook runs, not an audit. A hook is shell that executes on your machine at the event it names, which is why every command in it is printed with what was found.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

91% identical to SubagentStart — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

hooks/hooks.json · 13 lines

What it actually says

{
  "SubagentStop": [
    {
      "matcher": ".*",
      "hooks": [
        {
          "type": "command",
          "command": "node \"${CLAUDE_PLUGIN_ROOT}/hooks/subagent-tracker.js\""
        }
      ]
    }
  ]
}
Same file

What else hooks.json configures

This page is one entry in a file that holds 6. Installing the file brings all of them; each is measured and scanned on its own page.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 13 lines scan A d88f5d566359

Subscribe to this mod's changes

SubagentStop is a hook published in the GitHub repository NYCU-Chung/cc-statusline (264 stars, last pushed 3mo ago), licensed MIT. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it A with 0 findings. It is 91% identical to SubagentStart, differing in 2 lines, and is treated as a copy.