UserPromptSubmit

UserPromptSubmit is a hook for Claude Code from paigy-ai/mcp. Its token cost is not measured, scanned A, a copy of SessionStart, MIT.

Um comando automático que roda um script quando o usuário envia uma mensagem. Ele executa o arquivo on-submit.sh antes de o agente receber o pedido.

In plain words
What is it for?
Serve para acionar tarefas de preparação no envio de cada pedido, conforme definido no arquivo on-submit.sh. O texto fornecido não permite dizer quais tarefas específicas são executadas.
Why use it?
Permite preparar ou verificar algo automaticamente antes do agente começar a processar a mensagem. O texto não explica o que o script faz depois de ser iniciado.

Hook for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the paigy plugin — 1 skill, 2 commands, 1 hook, 1 MCP server shipped together

Good fit Serve para acionar tarefas de preparação no envio de cada pedido, conforme definido no arquivo on-submit.sh. O texto fornecido não permite dizer quais tarefas específicas são executadas.

Compare 6 hooks from other repositories ↓
View source ↗ paigy-ai/mcp
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add paigy-ai/mcp
Claude Code
/plugin install paigy

Made for: Claude Code.

Or install paigy, the plugin that ships this one along with the rest of its 1 skill, 2 commands, 1 hook, 1 MCP server.

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/paigy-ai/mcp/user-prompt-submit.svg)](https://agentmods.dev/hooks/paigy-ai/mcp/user-prompt-submit)
Your own site
<a href="https://agentmods.dev/hooks/paigy-ai/mcp/user-prompt-submit"><img src="https://agentmods.dev/badge/hooks/paigy-ai/mcp/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. A grade says what 26 rules found in the file — not that it is safe.
Origin 70% copy Near-identical to another mod 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 7d 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.

Origin

This is a copy

70% identical to SessionStart — 8 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

hooks/hooks.json · 13 lines

What it actually says

{
  "UserPromptSubmit": [
    {
      "matcher": "",
      "hooks": [
        {
          "type": "command",
          "command": "${CLAUDE_PLUGIN_ROOT}/hooks/on-submit.sh"
        }
      ]
    }
  ]
}
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. 7d ago First seen · 13 lines scan A bfe754710cf2

Subscribe to this mod's changes

UserPromptSubmit is a hook published in the GitHub repository paigy-ai/mcp (0 stars, last pushed yesterday), 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. It is 70% identical to SessionStart, differing in 8 lines, and is treated as a copy.