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sonicjs: Hook for Claude Code

.claude/settings.json

UserPromptSubmit is a hook for Claude Code from SonicJs-Org/sonicjs. Its token cost is not measured, scanned A, original, MIT.

A hook that runs before the agent receives each user prompt and prints a testing reminder. The reminder asks for end-to-end tests using Playwright.

In plain words
What is it for?
Use it in SonicJS agent configurations where completed changes should be tested in a tests/e2e/ folder before the task is considered done.
Why use it?
It places the testing requirement at the start of every task, making it less likely that verification is forgotten.

Hook for Claude Code

Written for Claude Code: UserPromptSubmit hook event.

This is SonicJs-Org/sonicjs's own configuration. It tells Claude Code how to work on sonicjs itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything sonicjs configures →

One of 2 entries in settings.json upstream. Installing this one merges just its entry into your config; the other 1 are separate, each on its own page.

not rated 1.8krepo +6 yesterday A scan tokens not measured original MIT
View source ↗ SonicJs-Org/sonicjs sonicjs.com
About the project

SonicJS is a TypeScript-first headless content-management system that exposes content through REST APIs and an administrative interface, running on Cloudflare Workers or other SQLite-compatible environments. It is for developers building applications that manage and publish structured content, with storage through technologies such as D1 and R2. Catalogue add-ons help coding agents create and work with SonicJS projects and content.

SonicJs-Org/sonicjs · 1,788 stars · on GitHub · sonicjs.com

Reuse

Borrowing it

Nothing to install: this file belongs to SonicJs-Org/sonicjs. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/SonicJs-Org/sonicjs/main/.claude/settings.json
Clone the repo
git clone --depth 1 https://github.com/SonicJs-Org/sonicjs

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/sonicjs-org/sonicjs/user-prompt-submit/github.svg)](https://agentmods.dev/hooks/sonicjs-org/sonicjs/user-prompt-submit)
Your own site
<a href="https://agentmods.dev/hooks/sonicjs-org/sonicjs/user-prompt-submit"><img src="https://agentmods.dev/badge/hooks/sonicjs-org/sonicjs/user-prompt-submit/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for UserPromptSubmit

Your own site · 80×15
<a href="https://agentmods.dev/hooks/sonicjs-org/sonicjs/user-prompt-submit"><img src="https://agentmods.dev/badge/hooks/sonicjs-org/sonicjs/user-prompt-submit.svg" alt="Reviewed on agentmods" width="80" 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 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 2mo 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 · 12 lines

What it actually says

{
  "UserPromptSubmit": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "echo '\n\n---\n\n📋 TESTING REMINDER: After completing this task, create and run E2E tests to verify the changes work correctly. Tests should go in tests/e2e/ using Playwright.\n\n---\n'"
        }
      ]
    }
  ]
}
Same file

What else settings.json configures

This page is one entry in a file that holds 2. 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. 2mo ago First seen · 12 lines scan A efdc40690445

Subscribe to this mod's changes

UserPromptSubmit is a hook published in the GitHub repository SonicJs-Org/sonicjs (1,788 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.

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Related

UserPromptSubmit compared with hooks from other repositories

UserPromptSubmit next to 6 hooks from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
UserPromptSubmitSonicJs-Org/sonicjsHook1.8kyesterdayMITA—Claude Code
PostToolUsesupabase/supabaseHook115kyesterdayApache-2.0A—Claude Code
SessionStartsupabase/supabaseHook115kyesterdayApache-2.0A—Claude Code
SessionStartgoogle-gemini/gemini-cliHook109kyesterdayApache-2.0A—Claude Code
PreToolUseapache/supersetHook75ktodayApache-2.0A—Claude Code
PreToolUseanthropics/claude-cookbooksHook54k2d agoMITA—Claude Code
PostToolUseanthropics/claude-plugins-officialHook46kyesterdayApache-2.0A—Claude Code