What is react-project-validator?

An agent that checks and fixes the structure and consistency of React/Vite projects. React is a tool for building user interfaces, while Vite is a frontend development and build tool.

Use it after major features or refactoring, before committing, when adding existing code to a project, or during project audits.

It helps catch project-standard or structural problems before they spread or reach a commit.

react-project-validator — Agent for Claude Code by Svenja-dev

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.

Clone the repo

git clone --depth 1 https://github.com/Svenja-dev/claude-code-skills

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/svenja-dev/claude-code-skills/react-project-validator/github.svg)](https://agentmods.dev/agents/svenja-dev/claude-code-skills/react-project-validator)

Your own site

<a href="https://agentmods.dev/agents/svenja-dev/claude-code-skills/react-project-validator"><img src="https://agentmods.dev/badge/agents/svenja-dev/claude-code-skills/react-project-validator/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/svenja-dev/claude-code-skills/react-project-validator"><img src="https://agentmods.dev/badge/agents/svenja-dev/claude-code-skills/react-project-validator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 1,145 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.01145
Opus 5.5	$0.00000	$0.00458
Sonnet 5.5	$0.00000	$0.00229
Haiku 4.5	$0.00000	$0.00114

Measured 2mo ago against content hash f1594df5290e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

react-project-validator 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 body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

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.

agents/react-project-validator.md · 91 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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.

2mo ago First seen · 91 lines · 0 tokens per session scan A f1594df5290e

Subscribe to this mod's changes

react-project-validator is an agent published in the GitHub repository Svenja-dev/claude-code-skills (38 stars, last pushed 5mo ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 1,145 tokens. 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.

Debugging Frontend React

react-project-validator next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
react-project-validatorSvenja-dev/claude-code-skills	Agent	38	5mo ago	none	A	0	Claude Code
react18-auditorgithub/awesome-copilot	Agent	41k	yesterday	MIT	A	74	Claude Code
react18-batching-fixergithub/awesome-copilot	Agent	41k	yesterday	MIT	A	76	Claude Code
react19-auditorgithub/awesome-copilot	Agent	41k	yesterday	MIT	A	61	Claude Code
investigate-errorreact/react	Agent	252k	yesterday	MIT	A	90	Claude Code
react-build-resolveraffaan-m/ECC	Agent	298k	5d ago	MIT	A	73	Claude Code, Kiro
systematic-debuggerPostHog/posthog	Agent	41k	yesterday	none	A	354	Claude Code