agentmods.dev

SubagentStop

A shutdown hook that runs a Node.js script when a subagent finishes. Node.js is a runtime for executing JavaScript outside a web browser.

In plain words
What is it for?
Running the referenced completion check whenever a subagent stops.
Why use it?
It enables an automatic check or cleanup step after delegated work ends.

Hook

2 1mo ago A scan tokens not measured original MIT
View the source file boranesn/agentic-base
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/boranesn/agentic-base/subagent-stop
Clone the repo
git clone --depth 1 https://github.com/boranesn/agentic-base
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 original No closer match found 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 yesterday.

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

Copies of this mod

1 near-identical copy found in the catalogue:

plugins/core-loop/hooks/hooks.json · 16 lines

What it actually says

{
  "SubagentStop": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "node",
          "args": [
            "${CLAUDE_PLUGIN_ROOT}/scripts/subagent-stop-check.mjs"
          ],
          "timeout": 10
        }
      ]
    }
  ]
}
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. yesterday First seen · 16 lines scan A df1ed6550111

Subscribe to this mod's changes

SubagentStop is a hook published in the GitHub repository boranesn/agentic-base (2 stars, last pushed 1mo 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. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Browser automationBuilding agentsLanguagesai-agentsclaude-codeclaude-code-pluginsdeveloper-toolshooksplugin-system
Related

Other hooks, from other repositories

SubagentStop

Runs when a subagent finishes, executing tlc-cleanup.sh and continuous-execution-hook.sh via bash (2 commands). From johanolofsson72/Claude.

johanolofsson72/Claude · not measured

SubagentStart

Runs when a subagent starts, executing subagent-brief.js via node. From V-Songbird/hush.

V-Songbird/hush · not measured

SubagentStart

Runs when a subagent starts, executing credo-subagent-inject.sh. From Marcel-Bich/marcel-bich-claude-marketplace.

Marcel-Bich/marcel-bich-claude-marketplace · not measured

SubagentStart

Runs when a subagent starts, executing subagent-tracker.js via node. From NYCU-Chung/cc-statusline.

NYCU-Chung/cc-statusline · not measured

SubagentStart

Runs when a subagent starts, running node. From V-Songbird/razor.

V-Songbird/razor · not measured

SubagentStop

Runs when a subagent finishes, executing stop-gate.sh. From rennf93/opus-fable-playbook.

rennf93/opus-fable-playbook · not measured