agentmods.dev

SubagentStop

SubagentStop is a hook for coding agents from MostAshraf/ai-sdlc-harness. Its token cost is not measured, scanned A, original, MIT.

A command hook that runs an inline shell check when a subagent finishes. A subagent is a separate agent started to handle part of a larger task.

In plain words
What is it for?
Use it to run the configured completion check after a subagent reports that it has finished.
Why use it?
It lets the harness check or guard the point where delegated work ends.

Hook

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 ai-sdlc-harness plugin — 8 skills, 4 commands, 3 agents, 4 hooks shipped together

One of 4 entries in hooks.json — they are configured in one file and arrive together.

not rated 18 +1 8d ago A scan tokens not measured original MIT
View the source file MostAshraf/ai-sdlc-harness
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 MostAshraf/ai-sdlc-harness
Claude Code
/plugin install ai-sdlc-harness

Or install ai-sdlc-harness, the plugin that ships this one along with the rest of its 8 skills, 4 commands, 3 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/mostashraf/ai-sdlc-harness/subagent-stop.svg)](https://agentmods.dev/hooks/mostashraf/ai-sdlc-harness/subagent-stop)
Your own site
<a href="https://agentmods.dev/hooks/mostashraf/ai-sdlc-harness/subagent-stop"><img src="https://agentmods.dev/badge/hooks/mostashraf/ai-sdlc-harness/subagent-stop.svg" alt="Measured on agentmods" 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. 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 5d 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.

hooks/hooks.json · 12 lines

What it actually says

{
  "SubagentStop": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "exec \"${CLAUDE_PLUGIN_ROOT}/hooks/run-guard\" subagent-stop || ${CLAUDE_PLUGIN_ROOT}/hooks/run-guard subagent-stop"
        }
      ]
    }
  ]
}
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. 5d ago First seen · 12 lines scan A 19024356419a

Subscribe to this mod's changes

SubagentStop is a hook published in the GitHub repository MostAshraf/ai-sdlc-harness (18 stars, last pushed 8d 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 2026-08-30.

agent-orchestrationagentic-codingai-agentsai-sdlcazure-devopsclaude-code
Related

Other hooks, from other repositories

UserPromptSubmit

Runs when you submit a prompt, before the agent sees it, executing inject-supervision.mjs via node. From ma-nucho-pro/supervisor-claude-plugin.

ma-nucho-pro/supervisor-claude-plugin · not measured

PreToolUse

Runs before the agent uses a tool for ^Bash$, ^apply_patch$, ^mcp__lsp__(safe_edit, apply_edit, safe_apply_edit, simulate_edit, replace_symbol_body, safe_delete_symbol and commit_session)$ tool calls, running an inline shell check (3 commands). From blackwell-systems/polywave-codex.

blackwell-systems/polywave-codex · not measured

PostToolUse

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

supabase/supabase · not measured

SessionStart

Runs when a session starts on startup, executing install_pkgs.sh. From supabase/supabase.

supabase/supabase · not measured

SessionStart

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

google-gemini/gemini-cli · not measured

PreToolUse

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

apache/superset · not measured