What is UserPromptSubmit?

An automatic action that runs when a user submits a prompt, before the AI agent processes it. It executes a script related to authorization for merging changes.

It is for running the CCL merge-authorization script at the start of each submitted request.

It adds an early check around merge permissions or approval. The available description does not specify the exact authorization rules.

UserPromptSubmit — Hook for Claude Code by ccoalm

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 ccoalm/ccl-skills

Claude Code

/plugin install ccl-skills

Made for: Claude Code.

Or install ccl-skills, the plugin that ships this one along with the rest of its 33 skills, 4 commands, 7 hooks.

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.

README.md

[![agentmods](https://agentmods.dev/badge/hooks/ccoalm/ccl-skills/user-prompt-submit.svg)](https://agentmods.dev/hooks/ccoalm/ccl-skills/user-prompt-submit)

Your own site

<a href="https://agentmods.dev/hooks/ccoalm/ccl-skills/user-prompt-submit"><img src="https://agentmods.dev/badge/hooks/ccoalm/ccl-skills/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 67% 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

67% identical to SessionStart — 7 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 · 14 lines

What it actually says

{
  "UserPromptSubmit": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "\"${CLAUDE_PLUGIN_ROOT}/hooks/merge-authorization-prompt.sh\"",
          "timeout": 5,
          "async": false
        }
      ]
    }
  ]
}

Same file

What else `hooks.json` configures

This page is one entry in a file that holds 7. 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.

6d ago First seen · 14 lines scan A 21368cff0bb5

Subscribe to this mod's changes

UserPromptSubmit is a hook published in the GitHub repository ccoalm/ccl-skills (6 stars, last pushed today), licensed Apache-2.0. 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. It is 67% identical to SessionStart, differing in 7 lines, and is treated as a copy.

Claude Code agent-skills ai-agents anthropic codex developer-tools

UserPromptSubmit