PostToolUse

PostToolUse is a hook for Claude Code from sanic732/P2P-4PDA-edition. Its token cost is not measured, scanned A, original, MIT.

A post-action hook that runs a shell command after the Write tool finishes. It is currently disabled and prints a reminder to check for anti-patterns.

In plain words
What is it for?
Checking files after an agent writes them and pointing the developer to an anti-pattern guide or feedback command.
Why use it?
It can remind developers to review newly written code for known problems. Because it is disabled, it does not currently run.

Hook for Claude Code

Written for Claude Code: PostToolUse hook event.

Part of the p2p-v8c3 plugin — 9 skills, 13 commands, 8 agents, 2 hooks shipped together

One of 3 entries in settings.json upstream. Installing this one merges just its entry into your config; the other 2 are separate, each on its own page.

Good fit Checking files after an agent writes them and pointing the developer to an anti-pattern guide or feedback command.

Compare 6 hooks from other repositories ↓
Install with agentmods
npx agentmods add hooks/sanic732/p2p-4pda-edition/post-tool-use
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/sanic732/P2P-4PDA-edition

Made for: Claude Code.

Or install p2p-v8c3, the plugin that ships this one along with the rest of its 9 skills, 13 commands, 8 agents, 2 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/sanic732/p2p-4pda-edition/post-tool-use/github.svg)](https://agentmods.dev/hooks/sanic732/p2p-4pda-edition/post-tool-use)
Your own site
<a href="https://agentmods.dev/hooks/sanic732/p2p-4pda-edition/post-tool-use"><img src="https://agentmods.dev/badge/hooks/sanic732/p2p-4pda-edition/post-tool-use/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 PostToolUse

Your own site · 80×15
<a href="https://agentmods.dev/hooks/sanic732/p2p-4pda-edition/post-tool-use"><img src="https://agentmods.dev/badge/hooks/sanic732/p2p-4pda-edition/post-tool-use.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

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 9d 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.

editions/8.4.6-C/plugin/.claude/settings.json · 14 lines

What it actually says

{
  "PostToolUse": [
    {
      "_disabled": true,
      "matcher": "Write",
      "hooks": [
        {
          "type": "command",
          "command": "echo '[P2P] Anti-pattern scan recommended. Run: /p2p-feedback or read skills/p2p/anti-patterns.md'"
        }
      ]
    }
  ]
}
Same file

What else settings.json configures

This page is one entry in a file that holds 3. 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. 9d ago First seen · 14 lines scan A 1ccec2afcb6b

Subscribe to this mod's changes

PostToolUse is a hook published in the GitHub repository sanic732/P2P-4PDA-edition (17 stars, last pushed 21d 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.