Stop

Stop is a hook for Claude Code from leaf76/session-collab-mcp. Its token cost is not measured, scanned A, original, MIT.

A stop hook that runs a shell check after the agent finishes a response.

In plain words
What is it for?
Use it at the end of agent work to record short findings and end a collaboration session.
Why use it?
It reminds the agent to save useful findings and close the collaboration session, reducing the chance of leaving session data unfinished.

Hook for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the session-collab plugin — 3 skills, 2 commands, 4 hooks, 1 MCP server 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.

Good fit Use it at the end of agent work to record short findings and end a collaboration session.

Compare 6 hooks from other repositories ↓
Install with agentmods
npx agentmods add hooks/leaf76/session-collab-mcp/stop
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.

Clone the repo
git clone --depth 1 https://github.com/leaf76/session-collab-mcp

Made for: Claude Code.

Or install session-collab, the plugin that ships this one along with the rest of its 3 skills, 2 commands, 4 hooks, 1 MCP server.

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 Stop

README.md
[![agentmods](https://agentmods.dev/badge/hooks/leaf76/session-collab-mcp/stop/github.svg)](https://agentmods.dev/hooks/leaf76/session-collab-mcp/stop)
Your own site
<a href="https://agentmods.dev/hooks/leaf76/session-collab-mcp/stop"><img src="https://agentmods.dev/badge/hooks/leaf76/session-collab-mcp/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 Stop

Your own site · 80×15
<a href="https://agentmods.dev/hooks/leaf76/session-collab-mcp/stop"><img src="https://agentmods.dev/badge/hooks/leaf76/session-collab-mcp/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 original No closer match found in the catalogue.
Security

Grade A, and why

Stop 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.

plugin/hooks/hooks.json · 12 lines

What it actually says

{
  "Stop": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "echo '{\"systemMessage\": \"Save short findings: collab_memory_save. Then collab_session_end. Durable prefs belong in AI-Memory.\"}'"
        }
      ]
    }
  ]
}
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. 1mo ago First seen · 12 lines scan A 9c0c0a962801

Subscribe to this mod's changes

Stop is a hook published in the GitHub repository leaf76/session-collab-mcp (2 stars, last pushed 17d 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.