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.
/plugin marketplace add Lexxes-Projects/obey/plugin install obeyWrote 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.
[](https://agentmods.dev/hooks/lexxes-projects/obey/subagent-stop)<a href="https://agentmods.dev/hooks/lexxes-projects/obey/subagent-stop"><img src="https://agentmods.dev/badge/hooks/lexxes-projects/obey/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.
<a href="https://agentmods.dev/hooks/lexxes-projects/obey/subagent-stop"><img src="https://agentmods.dev/badge/hooks/lexxes-projects/obey/subagent-stop.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 1mo 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.
This is a copy
45% identical to SessionStart — 9 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.
What it actually says
{
"SubagentStop": [
{
"hooks": [
{
"type": "command",
"command": "bash ${CLAUDE_PLUGIN_ROOT}/scripts/subagent-stop.sh",
"timeout": 5,
"async": true
}
]
}
]
}What else hooks.json configures
This page is one entry in a file that holds 16. Installing the file brings all of them; each is measured and scanned on its own page.
- Hook ConfigChange A not measured
- Hook InstructionsLoaded A not measured
- Hook Notification A not measured
- Hook PermissionRequest A not measured
- Hook PostCompact A not measured
- Hook PostToolUse A not measured
- Hook PostToolUseFailure A not measured
- Hook PreCompact A not measured
- Hook PreToolUse A not measured
- Hook SessionEnd A not measured
- Hook SessionStart A not measured
- Hook Stop A not measured
- Hook SubagentStart A not measured
- Hook TaskCompleted A not measured
- Hook UserPromptSubmit A not measured
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.
- 1mo ago First seen · 14 lines scan A 9996b1247c23
SubagentStop is a hook published in the GitHub repository Lexxes-Projects/obey (2 stars, last pushed 6mo 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 45% identical to SessionStart, differing in 9 lines, and is treated as a copy.
Other hooks, from other repositories
UserPromptSubmit
Runs when you submit a prompt, before the agent sees it, executing user-prompt-submit.js via node. From clankercode/claude-inject-idle-time.
Stop
Runs when the agent finishes a response, executing stop.js via node. From clankercode/claude-inject-idle-time.
PreCompact
Runs before the context is compacted, executing pre-compact.js via node. From clankercode/claude-inject-idle-time.
SessionStart
Runs when a session starts, executing cli.js via node. From code-yeongyu/codex-rules.
BeforeTool
Runs on the BeforeTool event, running npx -y cc-safety-net hook --gemini-cli. From kenryu42/gemini-safety-net.
TaskCompleted
Runs when a task is marked completed, executing task-completed-gate.sh. From rmzi/portable-dev-system.