PostToolUse

PostToolUse is a hook for Claude Code from oalders/kitchen-sink. Its token cost is not measured, scanned A, a copy of Notification, MIT.

A post-tool hook that runs a shell command after another tool call finishes. A hook is an automatic action attached to an event such as a completed tool call.

In plain words
What is it for?
This example tries to run the clodhopper ingestion command for the kitchen-sink source after each tool call, while ignoring failures.
Why use it?
It lets the setup perform a follow-up check or import automatically after a tool finishes, without requiring a separate manual command.

Hook for Claude Code

Written for Claude Code: PostToolUse hook event.

Part of the kitchen-sink plugin — 9 skills, 20 commands, 12 hooks shipped together

One of 13 entries in settings.json — they are configured in one file and arrive together.

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/oalders/kitchen-sink/post-tool-use
Clone the repo
git clone --depth 1 https://github.com/oalders/kitchen-sink

Made for: Claude Code.

Or install kitchen-sink, the plugin that ships this one along with the rest of its 9 skills, 20 commands, 12 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 PostToolUse

README.md
[![agentmods](https://agentmods.dev/badge/hooks/oalders/kitchen-sink/post-tool-use.svg)](https://agentmods.dev/hooks/oalders/kitchen-sink/post-tool-use)
Your own site
<a href="https://agentmods.dev/hooks/oalders/kitchen-sink/post-tool-use"><img src="https://agentmods.dev/badge/hooks/oalders/kitchen-sink/post-tool-use.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 97% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

PostToolUse 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.

Origin

This is a copy

97% identical to Notification — 2 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.

.claude/settings.json · 13 lines

What it actually says

{
  "PostToolUse": [
    {
      "hooks": [
        {
          "command": "is there clodhopper && clodhopper ingest --source-app kitchen-sink 2>/dev/null || true",
          "timeout": 5,
          "type": "command"
        }
      ]
    }
  ]
}
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 · 13 lines scan A dec79797f8fc

Subscribe to this mod's changes

PostToolUse is a hook published in the GitHub repository oalders/kitchen-sink (4 stars, last pushed 5d 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 97% identical to Notification, differing in 2 lines, and is treated as a copy.