PostToolUse

PostToolUse is a hook for Claude Code from FlorianBruniaux/starmapper. Its token cost is not measured, scanned A, original, no licence file.

A set of checks that runs after the agent writes, edits, or executes Bash commands. It formats code, reports type and lint errors, reminds about banners, runs tests after edits, updates release documentation, and logs activity.

In plain words
What is it for?
Use it to format and validate code, run tests, update release notes, and record activity after tool use.
Why use it?
It gives immediate feedback after changes and automates routine project checks.

Hook for Claude Code

Written for Claude Code: installed under .claude/.

One of 8 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/florianbruniaux/starmapper/post-tool-use
Clone the repo
git clone --depth 1 https://github.com/FlorianBruniaux/starmapper

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/florianbruniaux/starmapper/post-tool-use.svg)](https://agentmods.dev/hooks/florianbruniaux/starmapper/post-tool-use)
Your own site
<a href="https://agentmods.dev/hooks/florianbruniaux/starmapper/post-tool-use"><img src="https://agentmods.dev/badge/hooks/florianbruniaux/starmapper/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 unknown 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 2d 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 · 54 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Same file

What else settings.json configures

This page is one entry in a file that holds 8. 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. 2d ago First seen · 54 lines scan A 5d099735b43e

Subscribe to this mod's changes

PostToolUse is a hook published in the GitHub repository FlorianBruniaux/starmapper (83 stars, last pushed 4d ago), with no licence file. 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 2026-09-03.