UserPromptSubmit

UserPromptSubmit is a hook for Claude Code from notque/vexjoy-agent. Its token cost is not measured, scanned A, original, MIT.

Automatic actions that run before a coding agent receives a user request, including context detection, prompt recording, and review checks.

In plain words
What is it for?
They help detect pipeline work, capture prompts in repositories, trigger code-review checks, and finalize routing decisions.
Why use it?
They identify relevant project conditions and apply review or routing rules before the request is handled.

Hook for Claude Code

One of 11 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/notque/vexjoy-agent/user-prompt-submit
Clone the repo
git clone --depth 1 https://github.com/notque/vexjoy-agent

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/notque/vexjoy-agent/user-prompt-submit.svg)](https://agentmods.dev/hooks/notque/vexjoy-agent/user-prompt-submit)
Your own site
<a href="https://agentmods.dev/hooks/notque/vexjoy-agent/user-prompt-submit"><img src="https://agentmods.dev/badge/hooks/notque/vexjoy-agent/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 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 · 38 lines

What it actually says

{
  "UserPromptSubmit": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "python3 \"$HOME/.claude/hooks/pipeline-context-detector.py\"",
          "description": "Detect pipeline creation requests and inject pipeline context",
          "timeout": 2000
        },
        {
          "type": "command",
          "command": "python3 \"$HOME/.claude/hooks/review-false-positive-capture.py\"",
          "description": "Capture review false-positive signals when a user disputes a code-review finding",
          "timeout": 3000
        },
        {
          "type": "command",
          "command": "python3 \"$HOME/.claude/hooks/codex-auto-review.py\"",
          "description": "Auto-inject Codex cross-model review for PR review operations",
          "timeout": 3000
        },
        {
          "type": "command",
          "command": "python3 \"$HOME/.claude/hooks/prompt-capture.py\"",
          "description": "Capture user prompts as voice samples (git repos only)",
          "timeout": 5000
        },
        {
          "type": "command",
          "command": "python3 \"$HOME/.claude/hooks/routing-outcome-finalizer.py\"",
          "description": "Finalize routing-decision outcomes on the next user turn (tool-errors + user reaction + re-route); replaces eager SubagentStop boost/decay",
          "timeout": 3000
        }
      ]
    }
  ]
}
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 · 38 lines scan A 9e0922fe5f36

Subscribe to this mod's changes

UserPromptSubmit is a hook published in the GitHub repository notque/vexjoy-agent (419 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. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.