agentmods.dev

SubagentStop

SubagentStop is a hook for coding agents from tellang/triflux. Its token cost is not measured, scanned A, a copy of SessionStart, MIT.

A hook that runs when a subagent finishes. A subagent is a separate agent process handling part of a larger task.

In plain words
What is it for?
For triggering the triflux hook orchestrator whenever a subagent stops.
Why use it?
It automatically starts the configured hook orchestrator after every subagent completion, so follow-up hook logic can run without manual action.

Hook

Part of the triflux plugin — 29 skills, 1 agent, 12 hooks shipped together

One of 12 entries in hooks.json — they are configured in one file and arrive together.

7 13d ago A scan tokens not measured copy · 97% MIT
View the source file tellang/triflux
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/tellang/triflux/subagent-stop
Clone the repo
git clone --depth 1 https://github.com/tellang/triflux

Or install triflux, the plugin that ships this one along with the rest of its 29 skills, 1 agent, 12 hooks.

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 1 finding. Scan, not verified.
Origin 97% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

SubagentStop scanned grade A with 1 finding 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 3d 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

"command": "node -e \"const fs=require('node:fs'),os=require('node:os'),path=require('node:path'),cp=require('node:child_process');const roots=[];try{roots.push(fs.readFileSync(path.join(os.homedir(),'.claude','scripts',
Origin

This is a copy

97% identical to SessionStart — 4 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 · 14 lines

What it actually says

{
  "SubagentStop": [
    {
      "matcher": "*",
      "hooks": [
        {
          "type": "command",
          "command": "node -e \"const fs=require('node:fs'),os=require('node:os'),path=require('node:path'),cp=require('node:child_process');const roots=[];try{roots.push(fs.readFileSync(path.join(os.homedir(),'.claude','scripts','.tfx-pkg-root'),'utf8').trim())}catch{}roots.push(process.env.PLUGIN_ROOT,process.env.CLAUDE_PLUGIN_ROOT);try{roots.push(cp.execFileSync('git',['rev-parse','--show-toplevel'],{encoding:'utf8',stdio:['ignore','pipe','ignore']}).trim())}catch{}roots.push(process.cwd());const root=roots.find(r=>r&&fs.existsSync(path.join(r,'hooks','hook-orchestrator.mjs')));if(!root){console.error('[triflux hook] cannot locate hooks/hook-orchestrator.mjs');process.exit(1)}const child=cp.spawnSync(process.execPath,[path.join(root,'hooks','hook-orchestrator.mjs')],{stdio:'inherit',env:process.env,windowsHide:true});process.exit(child.status??(child.signal?1:0));\"",
          "timeout": 5
        }
      ]
    }
  ]
}
Same file

What else hooks.json configures

This page is one entry in a file that holds 12. 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. 3d ago First seen · 14 lines scan A b05eced1f058

Subscribe to this mod's changes

SubagentStop is a hook published in the GitHub repository tellang/triflux (7 stars, last pushed 13d 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 1 finding (runs shell commands). It is 97% identical to SessionStart, differing in 4 lines, and is treated as a copy.

ai-routingclaude-codeclaude-plugincli-orchestratorcodex-clideveloper-tools
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