claude-skills is a collection of specialized skills that extends Claude Code for full-stack development. Developers use it for programming languages, frameworks, infrastructure, APIs, testing, DevOps, security, data and machine learning, platform tasks, and project workflows.
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.
git clone --depth 1 https://github.com/Jeffallan/claude-skillsWrote 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.
[](https://agentmods.dev/plugins/jeffallan/claude-skills/marketplace)<a href="https://agentmods.dev/plugins/jeffallan/claude-skills/marketplace"><img src="https://agentmods.dev/badge/plugins/jeffallan/claude-skills/marketplace/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.
<a href="https://agentmods.dev/plugins/jeffallan/claude-skills/marketplace"><img src="https://agentmods.dev/badge/plugins/jeffallan/claude-skills/marketplace.svg" alt="Reviewed on agentmods" width="80" height="20"></a>Grade A, and why
fullstack-dev-skills marketplace 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 today.
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.
How it starts
The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.
{
"name": "fullstack-dev-skills",
"owner": {
"name": "jeffallan"
},
"metadata": {
"description": "Comprehensive skill pack for full-stack developers covering frameworks, workflows, and security",
"version": "0.4.20"
},
"plugins": [
{
"name": "fullstack-dev-skills",
"source": {
"source": "github",
"repo": "jeffallan/claude-skills",
"ref": "plugin"
},
"description": "67 specialized skills for full-stack development: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 8 backend frameworks, 7 frontend/mobile, plus infrastructure, DevOps, security, and testing skills. Includes 9 project workflow commands for epic planning, discovery, execution, and retrospectives.",
"version": "0.4.20",
"author": {
"name": "jeffallan",
"email": "[email protected]",
"url": "https://github.com/jeffallan"
},
"homepage": "https://jeffallan.github.io/claude-skills/",
"repository": "https://github.com/jeffallan/claude-skills",
"license": "MIT",
"keywords": [
"claude-skill",
"claude-code",
"fullstack",
"typescript",
"python",
"go",
"rust",
"cpp",
"swift",
"kotlin",
"csharp",
"php",
"java",
"sql",
"dart",
"react",
"nextjs",
"vue",
"angular",
"react-native",
"flutter",
"nestjs",
"django",
"fastapi",
"spring-boot",
"laravel",
"rails",
"dotnet",
"kubernetes",
"terraform",
"graphql",
"microservices",
"debugging",
"monitoring",
"architecture",
"security",
"code-review",
"testing",
"playwright",
"devops",
"sre",
"model-invoked",
"project-management",
"epic-pThe plugins it lists here
This marketplace lists 1 plugin kept in the same repository. Each has its own page, its own measurements and its own install command.
What ships with it
1 file beside marketplace.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- today Changed 414179be2835
- 12d ago Changed 0d281784d9f9
- 13d ago Changed d789b6c85d63
- 25d ago Changed · +5 lines 488e2eb5dfea
- 2mo ago First seen · 88 lines scan A 8f2139b8c0ec
fullstack-dev-skills marketplace is a plugin published in the GitHub repository Jeffallan/claude-skills (12,117 stars, last pushed today), 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 2026-08-30.
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