native-sdk

A toolkit and set of instructions for building desktop applications that compile TypeScript and declarative Native markup into native programs. It also supports Zig app cores, optional web content, and experimental mobile embedding.

In plain words
What is it for?
Use it to create native macOS, Linux, or Windows desktop apps, define their interface and app logic, and test the running window through its built-in automation server.
Why use it?
It helps developers build desktop apps without shipping a browser or JavaScript runtime inside the final program. It also provides a way to automate, inspect, and capture screenshots of a running window.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/vercel-labs/native/native-sdk
Any agent
npx skills add vercel-labs/native --skill native-sdk
Clone the repo
git clone --depth 1 https://github.com/vercel-labs/native

Made for: Claude Code, Codex.

Per session 125 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 727 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00125 $0.00727
Opus 5 $0.00063 $0.00364
Sonnet 5 $0.00025 $0.00145
Haiku 4.5 $0.00013 $0.00073

Measured 2d ago against content hash e8a4250fde73, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

native-sdk 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 2d 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.

skills/native-sdk/SKILL.md · 35 lines

How it starts

The opening of the file, as written. The whole thing — 35 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Native SDK

The Native SDK is the complete toolkit for building native desktop applications. The primary authoring path is TypeScript app logic in src/core.ts plus declarative Native markup in .native files. The TypeScript core is checked and compiled ahead of time to native code, so the shipped binary contains no browser, WebView, JS runtime, or interpreter. Zig is how the toolkit itself works and is a first-class, explicitly chosen app-core alternative (--template zig-core); it is not the default inferred from the SDK's implementation. Every app embeds a deterministic automation server, so agents can snapshot, drive, and screenshot the running window. Desktop is the mature surface (macOS deepest, Linux and Windows exercised in CI); mobile embedding is experimental. WebView surfaces coexist as the optional path for embedding web content or hosting an existing web frontend.

Start here

This file is a discovery stub for agents that installed the Native SDK once with a skills installer such as npx skills add native-sdk. Before implementing or explaining Native SDK app work, use the installed CLI to discover and load the current skill content:

native skills list
native skills get core
native skills get native-ui
native skills get ts-core

Use native skills get core for initial orientation. For the default app-authoring path, load both native-ui (views, bindings, the app loop) and ts-core (the TypeScript subset, effects, subscriptions, and modules) before implementing. Load ts-services too when the tree has src/services/ or ordinary TypeScript needs filesystem/process/JSON/regex/Map/Date/class work behind Cmd.request. Use native skills get core --full when work reaches lower-level runtime wiring, WebViews, bridge/security, native capabilities, packaging, or debugging. Use native skills get automation when testing a running app, taking snapshots, requesting reloads, or using the built-in automation server. Use native skills get zig only for an existing Zig core, a toolkit extension, SDK implementation work, or a Zig 0.16 compile error.

Read the full file on GitHub · 35 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.

  1. 2d ago First seen · 35 lines · 125 tokens per session scan A e8a4250fde73

Subscribe to this mod's changes

native-sdk is a skill published in the GitHub repository vercel-labs/native (7,615 stars, last pushed 7d ago), licensed Apache-2.0. It adds 125 tokens to every session and 727 once invoked, about $0.0006 per session on Opus 5. 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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