UserPromptSubmit

UserPromptSubmit is a hook for coding agents from actionbook/rust-skills. Its token cost is not measured, scanned A, original, no licence file.

A submission hook that runs before the coding agent sees a prompt when it contains listed Rust-related terms, such as cargo, crate, ownership, async, or unsafe. A hook is an automatic action triggered by a particular event.

In plain words
What is it for?
Use it to trigger a pre-processing step for prompts about Rust, Cargo, Rust files, ownership, borrowing, asynchronous code, errors, and related topics.
Why use it?
It lets the system recognise prompts likely to concern Rust before processing them. The description does not state what action it performs after detecting those terms.

Hook

Part of the rust-skills plugin — 22 skills, 21 commands, 11 agents, 1 hook, 1 MCP server shipped 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/actionbook/rust-skills/user-prompt-submit
Clone the repo
git clone --depth 1 https://github.com/actionbook/rust-skills

Or install rust-skills, the plugin that ships this one along with the rest of its 22 skills, 21 commands, 11 agents, 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/actionbook/rust-skills/user-prompt-submit.svg)](https://agentmods.dev/hooks/actionbook/rust-skills/user-prompt-submit)
Your own site
<a href="https://agentmods.dev/hooks/actionbook/rust-skills/user-prompt-submit"><img src="https://agentmods.dev/badge/hooks/actionbook/rust-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. Scan, not verified.
Origin unknown 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.

hooks/hooks.json · 13 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 · 13 lines scan A 765c439a31eb

Subscribe to this mod's changes

UserPromptSubmit is a hook published in the GitHub repository actionbook/rust-skills (1,438 stars, last pushed 11d ago), with no licence file. 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.