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UserPromptSubmit

UserPromptSubmit is a hook for coding agents from microsoft/power-platform-skills. Its token cost is not measured, scanned A, original, MIT.

A prompt-submission hook that runs a .NET shell check before the coding agent receives each prompt.

In plain words
What is it for?
Running the configured inject-sync-reminder.cs check whenever a user submits a prompt.
Why use it?
It inserts a required check or reminder into the workflow before work begins on a request.

Hook

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 canvas-apps plugin — 4 skills, 2 agents, 1 hook, 1 MCP server shipped together

not rated 814 today A scan tokens not measured original MIT
View the source file microsoft/power-platform-skills
About the project

microsoft/power-platform-skills is a plugin marketplace containing reusable skills, agents, and commands for developing with Microsoft Power Platform. Developers use it to build and deploy Power Pages sites, model-driven Power Apps, and related solutions through Claude Code or GitHub Copilot. The catalogue entries are the marketplace's included skills, agents, plugins, and other agent components.

microsoft/power-platform-skills · 814 stars · on GitHub

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 microsoft/power-platform-skills
Claude Code
/plugin install canvas-apps

Or install canvas-apps, the plugin that ships this one along with the rest of its 4 skills, 2 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/microsoft/power-platform-skills/user-prompt-submit.svg)](https://agentmods.dev/hooks/microsoft/power-platform-skills/user-prompt-submit)
Your own site
<a href="https://agentmods.dev/hooks/microsoft/power-platform-skills/user-prompt-submit"><img src="https://agentmods.dev/badge/hooks/microsoft/power-platform-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 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.

plugins/canvas-apps/hooks/hooks.json · 13 lines

What it actually says

{
  "UserPromptSubmit": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "dotnet run --file \"${CLAUDE_PLUGIN_ROOT}/hooks/inject-sync-reminder.cs\"",
          "timeout": 30
        }
      ]
    }
  ]
}
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 52276d977ad2

Subscribe to this mod's changes

UserPromptSubmit is a hook published in the GitHub repository microsoft/power-platform-skills (814 stars, last pushed today), 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.

Data and AIclaude-code-pluginclaude-code-skillscode-appspower-appspower-pagespower-platform
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