PostToolUse

PostToolUse is a hook for Claude Code from jsohi/app-trading-engine. Its token cost is not measured, scanned A, original, Apache-2.0.

A post-tool hook that runs scripts after selected agent, Git, commit, push, and build commands finish.

In plain words
What is it for?
It records plan-agent activity, enforces review and testing rules, and can add a review request to a pull request after a push.
Why use it?
It adds automatic checks and records around important actions, such as requiring test suites after a commit and review steps before pushing.

Hook for Claude Code

One of 3 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/jsohi/app-trading-engine/post-tool-use
Clone the repo
git clone --depth 1 https://github.com/jsohi/app-trading-engine

Made for: Claude Code.

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/jsohi/app-trading-engine/post-tool-use.svg)](https://agentmods.dev/hooks/jsohi/app-trading-engine/post-tool-use)
Your own site
<a href="https://agentmods.dev/hooks/jsohi/app-trading-engine/post-tool-use"><img src="https://agentmods.dev/badge/hooks/jsohi/app-trading-engine/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 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 4d 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.

.claude/settings.json · 62 lines

How it starts

The opening of the file, as written. The whole thing — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.

{
  "PostToolUse": [
    {
      "matcher": "Agent",
      "hooks": [
        {
          "type": "command",
          "command": "$CLAUDE_PROJECT_DIR/.claude/hooks/record-plan-agent-done.sh",
          "timeout": 5,
          "statusMessage": "Recording Plan-agent invocation (if subagent_type=Plan)..."
        }
      ]
    },
    {
      "matcher": "Bash(git commit:*)",
      "hooks": [
        {
          "type": "command",
          "command": "[ \"$EXIT_CODE\" -eq 0 ] && jq -nc '{decision:\"block\", reason:\"A git commit just completed. You MUST now run ALL three test suites before pushing or doing anything else:\\n\\n  1. ./gradlew test\\n  2. ./gradlew :integration-tests:test\\n  3. ./gradlew e2e\\n\\nDo NOT skip any suite. Do NOT claim they were already run. Execute each command and report results.\"}' || exit 0",
          "timeout": 5,
          "statusMessage": "Enforcing post-commit test gate..."
        }
      ]
    },
    {
      "matcher": "Bash(git push:*)",
      "hooks": [
        {
          "type": "command",
          "command": "pr=$(gh pr view --json number -q .number 2>/dev/null); [ -n \"$pr\" ] && gh pr comment \"$pr\" --body \"@gemini review\" >/dev/null 2>&1; exit 0",
          "async": true,
          "timeout": 30,
          "statusMessage": "Requesting Gemini review on PR..."
        },
        {
          "type": "prompt",
          "prompt": "A push just completed. You MUST now poll for Gemini review and fix all findings:\n\n1. Record PUSH_TIME=$(date -u -v-30S +%%Y-%%m-%%dT%%H:%%M:%%SZ) (30s clock-skew buffer)\n2. Wait for Gemini review: poll every 30s until gemini-code-assist[bot] review appears\n3. Fetch ALL Gemini line-level comments created after PUSH_TIME\n4. Fix ALL high, medium, and low severity findings\n5. If fixes made: run spotlessApply, commit, run all 3 test suites, push again (which triggers another Gemini round)\n6. Loop until Gemini has zero actionable comments\n\nDo NOT skip this. Do NOT say 'I already pushed'. Do N

Read the full file on GitHub · 62 lines

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. 4d ago First seen · 62 lines scan A f8aadfa18c85

Subscribe to this mod's changes

PostToolUse is a hook published in the GitHub repository jsohi/app-trading-engine (2 stars, last pushed 3mo 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. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.