native AGENTS.md

Repository guidance for building applications with Vercel Labs' Native SDK, including which files, languages, and build steps to use.

In plain words
What is it for?
It explains how to inspect an existing app, initialize a new TypeScript app, separate service code, use the required UI guidance, and run build and test checks.
Why use it?
It prevents developers from choosing the wrong app structure or language based on the SDK's internal implementation or older examples.

Instructions file for CodexOpenCode

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 instructions/vercel-labs/native/agents-md
Clone the repo
git clone --depth 1 https://github.com/vercel-labs/native

Made for: Codex, OpenCode.

Per session 851 This file is loaded in full into every session.
When invoked 851 The same file — it is already loaded in full.
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 $0.00851 $0.00851
Opus 5 $0.00426 $0.00426
Sonnet 5 $0.00170 $0.00170
Haiku 4.5 $0.00085 $0.00085

Measured yesterday against content hash 0294ee6556f1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

native AGENTS.md 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.

AGENTS.md · 44 lines

How it starts

The opening of the file, as written. The whole thing — 44 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Guide

Guidance for agents (and humans) working on this repository.

App authoring default

Native SDK itself is implemented in Zig, but Native SDK apps are authored in TypeScript + Native markup by default. Do not infer the app-authoring language from this repository's implementation language or from older Zig-core examples.

  • For a new app, use native init <path> and expect src/core.ts, src/app.native, and app.json. app.zon remains a supported legacy/alternative manifest. Ordinary compiled TypeScript work that needs filesystem, process, JSON, regex, classes, or other static-tier APIs belongs under optional src/services/, reached from the core with Cmd.request; do not import a service from the core. Do not add Zig app code unless the user explicitly chooses --template zig-core or the feature requires a toolkit extension.
  • Before changing an existing app, inspect its tree. A src/core.ts app stays TypeScript; a src/main.zig app stays Zig unless the task is specifically a migration.
  • For default app work, read skill-data/native-ui/SKILL.md and skill-data/ts-core/SKILL.md; also read skill-data/ts-services/SKILL.md when the tree has src/services/ or the task needs ordinary TypeScript beyond the core subset. skill-data/core/SKILL.md covers shared/runtime concerns; skill-data/zig/SKILL.md is for Zig-core apps and SDK implementation work.
  • The -ts suffix on a few examples only distinguishes ports from older Zig originals. New TypeScript apps need no suffix because TypeScript is the default.

Build, test, and gate

zig build test                # root engine + runtime suites
zig build validate            # framework's legacy app.zon manifest check
zig build test-example-<name> # one example's suite (e.g. test-example-notes)
scripts/gate.sh fast [ref]    # affected-only local gate for your diff (default base: main)
scripts/gate.sh full          # everything CI-shaped that runs locally

Run scripts/gate.sh fast before finishing any change; it maps your diff to the suites that cover it. The docs site checks with pnpm --dir docs check (the gate runs it only when docs/ changed).

Read the full file on GitHub · 44 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. yesterday First seen · 44 lines · 851 tokens per session scan A 0294ee6556f1

Subscribe to this mod's changes

native AGENTS.md is an instructions file published in the GitHub repository vercel-labs/native (7,601 stars, last pushed 6d ago), licensed Apache-2.0. It adds 851 tokens to every session, about $0.0043 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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