agentmods.dev

SubagentStop

A hook that runs a command when a subagent, or helper agent, finishes its work. In this configuration, it runs the argos hook.

In plain words
What is it for?
Use it to trigger argos processing whenever a subagent completes.
Why use it?
It provides an automatic finish-time action without requiring the main agent to remember to run it. The input does not explain what the argos hook itself does.

Hook for Claude Code

436 2mo ago A scan tokens not measured copy · 86% MIT
View the source file greatSumini/cc-system
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add hooks/greatsumini/cc-system/subagent-stop
Clone the repo
git clone --depth 1 https://github.com/greatSumini/cc-system

Made for: Claude Code.

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 86% 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 2d 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

86% identical to SessionStart — 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.

.claude/settings.json · 13 lines

What it actually says

{
  "SubagentStop": [
    {
      "matcher": "",
      "hooks": [
        {
          "type": "command",
          "command": "argos hook"
        }
      ]
    }
  ]
}
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. 2d ago First seen · 13 lines scan A f415a1e171fb

Subscribe to this mod's changes

SubagentStop is a hook published in the GitHub repository greatSumini/cc-system (436 stars, last pushed 2mo 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 86% identical to SessionStart, differing in 2 lines, and is treated as a copy.

Building agents
Related

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SubagentStart

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SubagentStart

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jeet129/praxis · not measured

SubagentStop

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lxyer/multi-agent-collaboration-system · not measured

PostToolUse

Runs after a tool call finishes for Write and Edit tool calls, executing format_and_lint.sh. From supabase/supabase.

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SessionStart

Runs when a session starts, executing on-start.js via node. From google-gemini/gemini-cli.

google-gemini/gemini-cli · not measured