expo-brownfield SKILL.md skillA
expo-brownfield from mweinbach/agent-coworker is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mweinbach/agent-coworker/expo-brownfield@git:20260524.a104814Pins git:20260524.a104814 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mweinbach/agent-coworker
- Path
apps/mobile/.agents/skills/expo-brownfield/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260524.a104814, committed May 24, 2026
- Size
- 3,605 bytes
- Repository stars
- 157
- License
- a license file GitHub does not identify
Integrate Expo and React Native into an existing native iOS or Android app. Use when the user mentions brownfield, embedding React Native in a native app, AAR/XCFramework, or adding Expo to an existing Kotlin/Swift project. Covers both the isolated approach and the integrated approach.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Expo Brownfield A **brownfield** app is an existing native iOS or Android app that adopts React Native incrementally, as opposed to a **greenfield** app that is React Native from day one. Expo supports two distinct ways to add React Native to a brownfield project: | Approach | What ships to the native app | When to choose | | -------------- | ------------------------------------------------------------------- | -------------------------------------------------------------------------------- | | **Isolated** | Prebuilt AAR / XCFramework | Native team doesn't need Node or RN tooling; RN code can live in a separate repo | | **Integrated** | React Native sources added to the existing Gradle / CocoaPods build | One team owns everything; comfortable with RN tooling; wants a single build | For the full decision matrix, see [./references/comparison.md](./references/comparison.md). ## Pick an approach Use these quick rules — fall through to `comparison.md` for anything ambiguous. …
Read the whole file at its exact version.
How to install
mdr add mweinbach/agent-coworker/expo-brownfield@sha256:6c17e12e1ec37e47The line at the top of this page pins the label git:20260524.a104814, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_jci6tajhz4ik6vqx)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 24, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3605 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
mweinbach/agent-coworker · 157 stars · license a license file GitHub does not identify · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jci6tajhz4ik6vqx GET https://markdownregistry.com/api/v1/resolve?ref=mweinbach/agent-coworker/expo-brownfield GET https://markdownregistry.com/api/v1/blob/6c17e12e1ec37e47235d131a9bb098703041ce4908b7191c9bde6fb91aac44c0
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.