agentmods.dev

UserPromptSubmit

UserPromptSubmit is a hook for Claude Code from rootsli/claude-quickstart-cn. Its token cost is not measured, scanned A, original, CC0-1.0.

A prompt-submission hook: a command that runs automatically when you send a prompt, before the coding agent processes it. This one runs a Python program named prd-detector.py.

In plain words
What is it for?
Use it in a Claude Code project that needs an automatic pre-processing check for submitted prompts. The hook must point to the project's .claude/hooks/prd-detector.py file.
Why use it?
It lets the project inspect incoming prompts automatically before work begins, although the supplied details do not explain what the detector looks for or does with its results.

Hook for Claude Code

One of 2 entries in settings.json — they are configured in one file and arrive together.

not rated 10 1mo ago A scan tokens not measured original CC0-1.0
View the source file rootsli/claude-quickstart-cn
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/rootsli/claude-quickstart-cn/user-prompt-submit
Clone the repo
git clone --depth 1 https://github.com/rootsli/claude-quickstart-cn

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/rootsli/claude-quickstart-cn/user-prompt-submit.svg)](https://agentmods.dev/hooks/rootsli/claude-quickstart-cn/user-prompt-submit)
Your own site
<a href="https://agentmods.dev/hooks/rootsli/claude-quickstart-cn/user-prompt-submit"><img src="https://agentmods.dev/badge/hooks/rootsli/claude-quickstart-cn/user-prompt-submit.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

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 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.

.claude/settings.json · 13 lines

What it actually says

{
  "UserPromptSubmit": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "python3 \"$CLAUDE_PROJECT_DIR/.claude/hooks/prd-detector.py\"",
          "timeout": 3000
        }
      ]
    }
  ]
}
Same file

What else settings.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. 5d ago First seen · 13 lines scan A c7d730214b49

Subscribe to this mod's changes

UserPromptSubmit is a hook published in the GitHub repository rootsli/claude-quickstart-cn (10 stars, last pushed 1mo ago), licensed CC0-1.0. 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.

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