UserPromptSubmit

UserPromptSubmit is a hook for Claude Code from mag123c/toktrack. Its token cost is not measured, scanned A, a copy of SessionStart, MIT.

A pair of automated checks that runs before the coding agent sees each submitted prompt. One asks for clarification first, and the other enforces the required skill sequence.

In plain words
What is it for?
Use it to run the project’s clarify-first and skill-chain checks at prompt submission time.
Why use it?
It catches unclear requests and prevents work from skipping the project’s defined skill workflow.

Hook for Claude Code

Written for Claude Code: $CLAUDE_PROJECT_DIR variable.

One of 3 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/mag123c/toktrack/user-prompt-submit
Clone the repo
git clone --depth 1 https://github.com/mag123c/toktrack

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/mag123c/toktrack/user-prompt-submit.svg)](https://agentmods.dev/hooks/mag123c/toktrack/user-prompt-submit)
Your own site
<a href="https://agentmods.dev/hooks/mag123c/toktrack/user-prompt-submit"><img src="https://agentmods.dev/badge/hooks/mag123c/toktrack/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 52% 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 6d 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

52% identical to SessionStart — 11 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.

.claude/settings.json · 16 lines

What it actually says

{
  "UserPromptSubmit": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "bash \"$CLAUDE_PROJECT_DIR/.claude/hooks/clarify-first.sh\""
        },
        {
          "type": "command",
          "command": "bash \"$CLAUDE_PROJECT_DIR/.claude/hooks/skill-chain-enforcer.sh\""
        }
      ]
    }
  ]
}
Same file

What else settings.json configures

This page is one entry in a file that holds 3. 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. 6d ago First seen · 16 lines scan A d8b1ff29bfe7

Subscribe to this mod's changes

UserPromptSubmit is a hook published in the GitHub repository mag123c/toktrack (188 stars, last pushed 2d ago), 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 52% identical to SessionStart, differing in 11 lines, and is treated as a copy.