agentmods.dev

SubagentStop

SubagentStop is a hook for Claude Code from bdfinst/agentic-dev-team. Its token cost is not measured, scanned A, a copy of Stop, MIT.

A finish-time hook that runs two shell scripts whenever a subagent completes: one records cost data and the other records task-completion metrics.

In plain words
What is it for?
It is used to measure subagent cost and completion results.
Why use it?
It automates collection of performance information at the point where delegated work ends.

Hook for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable.

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 dev-team plugin — 98 skills, 54 agents, 4 hooks shipped together

One of 4 entries in hooks.json upstream. Installing this one merges just its entry into your config; the other 3 are separate, each on its own page.

not rated 295repo +2 changed 25d ago A scan tokens not measured copy · 92% MIT

Good fit It is used to measure subagent cost and completion results.

Compare 6 hooks from other repositories ↓
View source ↗ bdfinst/agentic-dev-team
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 bdfinst/agentic-dev-team
Claude Code
/plugin install dev-team

Made for: Claude Code.

Or install dev-team, the plugin that ships this one along with the rest of its 98 skills, 54 agents, 4 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/bdfinst/agentic-dev-team/subagent-stop/github.svg)](https://agentmods.dev/hooks/bdfinst/agentic-dev-team/subagent-stop)
Your own site
<a href="https://agentmods.dev/hooks/bdfinst/agentic-dev-team/subagent-stop"><img src="https://agentmods.dev/badge/hooks/bdfinst/agentic-dev-team/subagent-stop/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for SubagentStop

Your own site · 80×15
<a href="https://agentmods.dev/hooks/bdfinst/agentic-dev-team/subagent-stop"><img src="https://agentmods.dev/badge/hooks/bdfinst/agentic-dev-team/subagent-stop.svg" alt="Reviewed on agentmods" width="80" 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. A grade says what 26 rules found in the file — not that it is safe.
Origin 92% 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 25d 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

92% identical to Stop — 10 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.

plugins/dev-team/hooks/hooks.json · 24 lines

What it actually says

{
  "SubagentStop": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "sh \"${CLAUDE_PLUGIN_ROOT}/hooks/py.sh\" \"${CLAUDE_PLUGIN_ROOT}/hooks/cost_meter.py\""
        },
        {
          "type": "command",
          "command": "sh \"${CLAUDE_PLUGIN_ROOT}/hooks/py.sh\" \"${CLAUDE_PLUGIN_ROOT}/hooks/task_completion_metrics.py\""
        },
        {
          "type": "command",
          "command": "sh \"${CLAUDE_PLUGIN_ROOT}/hooks/py.sh\" \"${CLAUDE_PLUGIN_ROOT}/hooks/subagent_completion_guard.py\""
        },
        {
          "type": "command",
          "command": "sh \"${CLAUDE_PLUGIN_ROOT}/hooks/py.sh\" \"${CLAUDE_PLUGIN_ROOT}/hooks/review_verdict_recorder.py\""
        }
      ]
    }
  ]
}
Same file

What else hooks.json configures

This page is one entry in a file that holds 4. 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. 25d ago Changed · +8 lines 766d4f2fb7de
  2. 1mo ago First seen · 16 lines scan A fb9380a47f12

Subscribe to this mod's changes

SubagentStop is a hook published in the GitHub repository bdfinst/agentic-dev-team (295 stars, last pushed 4d 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 92% identical to Stop, differing in 10 lines, and is treated as a copy.

Analytics and metrics
Related

Other hooks, from other repositories

PreToolUse

Runs before the agent uses a tool for Bash tool calls, running an inline shell check. From apache/superset.

apache/superset · not measured

PreToolUse

Runs before the agent uses a tool, executing pre-write.sh and pre-bash.sh (2 commands). From anthropics/claude-cookbooks.

anthropics/claude-cookbooks · not measured

PostToolUse

Runs after a tool call finishes for Bash tool calls, executing hooks.sh via sh (3 commands). From anthropics/claude-plugins-official.

anthropics/claude-plugins-official · not measured

PreCompact

Runs before the context is compacted for manual and auto tool calls, executing hook-handler.cjs via node (4 commands). From ruvnet/RuView.

ruvnet/RuView · not measured

SessionStart

Runs when a session starts on startup, executing worktree-setup.mjs via bash with --show-toplevel. From openclaw/openclaw.

openclaw/openclaw · not measured

SessionStart

Runs when a session starts, executing hook-handler.cjs and auto-memory-hook.mjs via node (2 commands). From ruvnet/RuView.

ruvnet/RuView · not measured