UserPromptSubmit

UserPromptSubmit is a hook for Claude Code from stellarlinkco/myclaude. Its token cost is not measured, scanned A, original, AGPL-3.0.

A hook that runs a script when a user submits a prompt, before the coding agent processes it. Hooks are automatic actions tied to events in an agent session.

In plain words
What is it for?
Running the project's log-prompt.py script automatically at prompt submission time.
Why use it?
It can record or inspect incoming prompts before they reach the agent, which is useful when a project needs prompt logging or other submission-time processing.

Hook for Claude Code

Written for Claude Code: a Claude Code hooks.json.

One of 2 entries in hooks.json upstream. Installing this one merges just its entry into your config; the other 1 are separate, each on its own page.

Good fit Running the project's log-prompt.py script automatically at prompt submission time.

Compare 6 hooks from other repositories ↓
Install with agentmods
npx agentmods add hooks/stellarlinkco/myclaude/user-prompt-submit
About the project

myclaude is a multi-agent development workflow system that coordinates Codex, Claude, Gemini, and OpenCode through commands, skills, agents, plugins, and hooks. It is for developers who want structured workflows for tasks such as requirements, coding, debugging, testing, review, and documentation. The catalogue entries represent parts of that workflow system for coding agents.

stellarlinkco/myclaude · 2,748 stars · on GitHub

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/stellarlinkco/myclaude

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 UserPromptSubmit

README.md
[![agentmods](https://agentmods.dev/badge/hooks/stellarlinkco/myclaude/user-prompt-submit/github.svg)](https://agentmods.dev/hooks/stellarlinkco/myclaude/user-prompt-submit)
Your own site
<a href="https://agentmods.dev/hooks/stellarlinkco/myclaude/user-prompt-submit"><img src="https://agentmods.dev/badge/hooks/stellarlinkco/myclaude/user-prompt-submit/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 UserPromptSubmit

Your own site · 80×15
<a href="https://agentmods.dev/hooks/stellarlinkco/myclaude/user-prompt-submit"><img src="https://agentmods.dev/badge/hooks/stellarlinkco/myclaude/user-prompt-submit.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 unknown No closer match found in the catalogue.
Security

Grade A, and why

UserPromptSubmit 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 10d 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.

hooks/hooks.json · 12 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Same file

What else hooks.json configures

This page is one entry in a file that holds 2. 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. 10d ago First seen · 12 lines scan A 64c81c4d0fca

Subscribe to this mod's changes

UserPromptSubmit is a hook published in the GitHub repository stellarlinkco/myclaude (2,748 stars, last pushed 4mo ago), licensed AGPL-3.0. 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 2026-08-30.