agentic-coding-starter-kit: Skill for Claude Code

.agents/skills/create-agentic-app/SKILL.md

create-agentic-app is a skill for Claude Code, Codex from leonvanzyl/agentic-coding-starter-kit. It costs 161 tokens per session (4,284 once invoked), scanned A, original, no licence file.

A setup workflow for a new agentic coding application using Next.js, TypeScript, Better Auth, Drizzle, PostgreSQL, and the AI SDK. It starts from a prepared application template with these technologies.

In plain words
What is it for?
It is for scaffolding, initializing, or bootstrapping an agentic app or Agentic Coding Starter Kit project.
Why use it?
It removes the initial setup work needed to configure the application framework, authentication, database, and AI development pieces.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is leonvanzyl/agentic-coding-starter-kit's own configuration. It tells Claude Code and Codex how to work on agentic-coding-starter-kit 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 agentic-coding-starter-kit configures →

Reuse

Borrowing it

Nothing to install: this file belongs to leonvanzyl/agentic-coding-starter-kit. 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/leonvanzyl/agentic-coding-starter-kit/master/.agents/skills/create-agentic-app/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/leonvanzyl/agentic-coding-starter-kit

Made for: Claude Code, Codex.

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 create-agentic-app

README.md
[![agentmods](https://agentmods.dev/badge/skills/leonvanzyl/agentic-coding-starter-kit/create-agentic-app/github.svg)](https://agentmods.dev/skills/leonvanzyl/agentic-coding-starter-kit/create-agentic-app)
Your own site
<a href="https://agentmods.dev/skills/leonvanzyl/agentic-coding-starter-kit/create-agentic-app"><img src="https://agentmods.dev/badge/skills/leonvanzyl/agentic-coding-starter-kit/create-agentic-app/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 create-agentic-app

Your own site · 80×15
<a href="https://agentmods.dev/skills/leonvanzyl/agentic-coding-starter-kit/create-agentic-app"><img src="https://agentmods.dev/badge/skills/leonvanzyl/agentic-coding-starter-kit/create-agentic-app.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 161 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,284 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00161 $0.04284
Opus 5.5 $0.00064 $0.01714
Sonnet 5.5 $0.00032 $0.00857
Haiku 4.5 $0.00016 $0.00428

Measured 1mo ago against content hash c7a34462047c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

create-agentic-app scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Run this via the Bash tool's `run_in_background: true` option so the rest of the verification can run alongside it. The Bash tool returns immediately — **Next.js needs a few seconds to compile and bind to port 3000**, so
.agents/skills/create-agentic-app/SKILL.md · 280 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

3 files beside SKILL.md 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.

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 · 280 lines · 161 tokens per session scan A c7a34462047c

Subscribe to this mod's changes

create-agentic-app is a skill published in the GitHub repository leonvanzyl/agentic-coding-starter-kit (449 stars, last pushed 5mo ago), with no licence file. It adds 161 tokens to every session and 4,284 once invoked, about $0.0006 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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