Automatic commands that run when the coding agent finishes a response. They perform quality checks, save the session, enforce a quality gate, and check whether required searches were completed.

Use it to run end-of-response validation, save session data, apply quality gates, and verify search requirements.

It reduces the chance that an agent stops without running the project's closing checks or preserving session information. It places these checks at the end of every response.

Stop — Hook by softspark

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/softspark/ai-toolkit/stop

Clone the repo

git clone --depth 1 https://github.com/softspark/ai-toolkit

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 78% copy Near-identical to another mod 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 yesterday.

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

78% identical to PreToolUse — 27 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.

app/claude-app/hooks/hooks.json · 40 lines

What it actually says

{
  "Stop": [
    {
      "matcher": "",
      "hooks": [
        {
          "type": "command",
          "command": "AI_TOOLKIT_DIR=\"${CLAUDE_PLUGIN_ROOT}\" \"${CLAUDE_PLUGIN_ROOT}/hooks/quality-check.sh\""
        }
      ]
    },
    {
      "matcher": "",
      "hooks": [
        {
          "type": "command",
          "command": "AI_TOOLKIT_DIR=\"${CLAUDE_PLUGIN_ROOT}\" \"${CLAUDE_PLUGIN_ROOT}/hooks/save-session.sh\""
        }
      ]
    },
    {
      "matcher": "",
      "hooks": [
        {
          "type": "command",
          "command": "AI_TOOLKIT_DIR=\"${CLAUDE_PLUGIN_ROOT}\" \"${CLAUDE_PLUGIN_ROOT}/hooks/quality-gate.sh\""
        }
      ]
    },
    {
      "matcher": "",
      "hooks": [
        {
          "type": "command",
          "command": "AI_TOOLKIT_DIR=\"${CLAUDE_PLUGIN_ROOT}\" \"${CLAUDE_PLUGIN_ROOT}/hooks/stop-search-check.sh\""
        }
      ]
    }
  ]
}

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.

yesterday First seen · 40 lines scan A a9a470709193

Subscribe to this mod's changes

Stop is a hook published in the GitHub repository softspark/ai-toolkit (167 stars, last pushed 3d ago), licensed Apache-2.0. 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 78% identical to PreToolUse, differing in 27 lines, and is treated as a copy.

Planning Research ai-agents ai-skills anthropic claude claude-code cline

Stop

Getting it into your agent

Grade A, and why

Nothing flagged

This is a copy

What it actually says

What this file has done since we first saw it

Other hooks, from other repositories

Stop

SessionStart

PreToolUse

PostToolUse

PostToolUse

SessionStart