What is n0an-skills marketplace?

A marketplace listing for nine developer add-ons, including tools for checking Git history, formatting Swift code, building Apple app actions, background work, and widgets.

Use it to discover the listed plugins, such as git-codebase-preflight, swift-format-style, app-intents, background-execution, and widgets.

It groups related add-ons in one catalogue entry so developers can find capabilities for Apple-platform development and repository checks.

n0an-skills marketplace — Plugin for Claude Code by n0an/skills

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/n0an/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/plugins/n0an/skills/marketplace/github.svg)](https://agentmods.dev/plugins/n0an/skills/marketplace)

Your own site

<a href="https://agentmods.dev/plugins/n0an/skills/marketplace"><img src="https://agentmods.dev/badge/plugins/n0an/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.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/n0an/skills/marketplace"><img src="https://agentmods.dev/badge/plugins/n0an/skills/marketplace.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

n0an-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 yesterday.

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.

.claude-plugin/marketplace.json · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.

{
  "name": "n0an-skills",
  "owner": {
    "name": "Anton Novoselov"
  },
  "description": "Agent skills and plugins by Anton Novoselov for Claude Code, Codex, Gemini, and Cursor: iOS and Swift skills plus general-purpose tooling.",
  "plugins": [
    {
      "name": "git-codebase-preflight",
      "source": {
        "source": "github",
        "repo": "n0an/git-codebase-preflight-skill"
      },
      "description": "Audits a repository through git history before reading source files",
      "version": "1.0.0"
    },
    {
      "name": "swift-format-style",
      "source": {
        "source": "github",
        "repo": "n0an/Swift-FormatStyle-Agent-Skill"
      },
      "description": "Reviews and writes modern Swift FormatStyle code with .formatted() APIs",
      "version": "1.0.0"
    },
    {
      "name": "app-intents",
      "source": {
        "source": "github",
        "repo": "n0an/App-Intents-Agent-Skill"
      },
      "description": "Reviews and writes Swift App Intents code for Siri, Shortcuts, Spotlight, widgets, Control Center, and Apple Intelligence",
      "version": "1.2.0"
    },
    {
      "name": "background-execution",
      "source": {
        "source": "github",
        "repo": "n0an/Background-Execution-Agent-Skill"
      },
      "description": "Reviews and writes Swift background-execution code: BGTaskScheduler, background URLSession, task assertions, push, and background modes",
      "version": "1.0.0"
    },
    {
      "name": "widgets",
      "source": {
        "source": "github",
        "repo": "n0an/Widgets-Agent-Skill"
      },
      "description": "Reviews and writes Swift WidgetKit code: Home Screen, Lock Screen, and watch widgets, Controls, Live Activities, accented/tinted rendering, Smart Stack relevance, push updates, and SiriKit/ClockKit migration",
      "version": "1.2.0"
    },
    {
      "name": "observability",
      "source": {
        "source": "github",
        "repo": "n0an/Observability-Agent-Skill"
      },

Read the full file on GitHub · 145 lines

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.

yesterday Changed · +9 lines 7ef59a6c0020
2d ago Changed · +9 lines cdb4201571cb
1mo ago Changed · +18 lines 1d34db542503
2mo ago Changed · +19 lines fa066c5f257d
2mo ago First seen · 90 lines scan A 2d08780069a9

Subscribe to this mod's changes

n0an-skills marketplace is a plugin published in the GitHub repository n0an/skills (6 stars, last pushed 2d 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.

Building agents Claude Code agent-skills agents codex gemini

n0an-skills marketplace next to 6 plugins from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
n0an-skills marketplacen0an/skills	Plugin	6	2d ago	MIT	A	—	Claude Code
e2eentireio/cli	Plugin	5.3k	yesterday	MIT	A	—	Claude Code
app-intentsn0an/App-Intents-Agent-Skill	Plugin	39	1mo ago	MIT	A	—	Gemini CLI
learning-agentsUnsupervisedcom/deepwork	Plugin	51	10d ago	none	A	—	Claude Code
deepworkUnsupervisedcom/deepwork	Plugin	51	10d ago	none	A	—	Claude Code
symbiEzee234/symbi-gemini-cli	Plugin	1	29d ago	Apache-2.0	B	—	Gemini CLI
humanizerblader/humanizer	Plugin	68k	yesterday	MIT	A	—	Claude Code