seevin-core

seevin-core is a plugin for Claude Code from zhanyoulin456/seevin-claude-plugins. Its manifest loads nothing; the 3 skills, 1 command, 3 MCP servers it bundles cost 159 tokens per session together, scanned A, original, MIT.

A plugin bundle of frontend design skills, LayerData-to-code conversion, code-style checks, Chrome DevTools integration, and documentation lookup.

In plain words
What is it for?
Use it when turning LayerData designs into code, checking frontend code conventions, inspecting pages with Chrome DevTools, or consulting documentation.
Why use it?
It groups several frontend development and inspection tools in one installable package, reducing the need to configure them separately.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it when turning LayerData designs into code, checking frontend code conventions, inspecting pages with Chrome DevTools, or consulting documentation.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add zhanyoulin456/seevin-claude-plugins
/plugin install seevin-core
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/zhanyoulin456/seevin-claude-plugins

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 seevin-core

README.md
[![agentmods](https://agentmods.dev/badge/plugins/zhanyoulin456/seevin-claude-plugins/seevin-core/github.svg)](https://agentmods.dev/plugins/zhanyoulin456/seevin-claude-plugins/seevin-core)
Your own site
<a href="https://agentmods.dev/plugins/zhanyoulin456/seevin-claude-plugins/seevin-core"><img src="https://agentmods.dev/badge/plugins/zhanyoulin456/seevin-claude-plugins/seevin-core/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 seevin-core

Your own site · 80×15
<a href="https://agentmods.dev/plugins/zhanyoulin456/seevin-claude-plugins/seevin-core"><img src="https://agentmods.dev/badge/plugins/zhanyoulin456/seevin-claude-plugins/seevin-core.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 The manifest loads nothing itself; its 3 skills, 1 command, 3 MCP servers cost 159 tokens a session between them.
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

seevin-core 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 1mo 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.

plugins/seevin-core/.claude-plugin/plugin.json · 15 lines

What it actually says

{
  "name": "seevin-core",
  "description": "Seevin 核心工具集 - 前端设计技能、LayerData 转代码、代码规范检查、Chrome DevTools 集成、文档查询",
  "version": "1.0.0",
  "author": {
    "name": "Seevin Team",
    "email": "[email protected]"
  },
  "license": "MIT",
  "mcpServers": "./.mcp.json",
  "commands": "./commands",
  "skills": "./skills",
  "homepage": "https://github.com/zhanyoulin456/seevin-claude-plugins/tree/main/plugins/seevin-core#readme"
}
Contents

What it installs

The manifest is a name and a version. 3 skills, 1 command, 3 MCP servers travel with it, and installing the plugin installs all of them — 159 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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. 1mo ago First seen · 15 lines scan A bd102cc0cfa3

Subscribe to this mod's changes

seevin-core is a plugin published in the GitHub repository zhanyoulin456/seevin-claude-plugins (4 stars, last pushed 8mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-08-31.