Expo Brownfield Integration
mweinbach/agent-coworker
Helps add Expo and React Native to an existing native iOS or Android app, and choose between a prebuilt AAR or XCFramework and a fully integrated build.
Static scan of an Expo / React Native iOS app for non-native patterns — Material component kits, JS navigators instead of native stack/tabs, PanResponder, disabled font scaling, hardcoded hex…
Install Expo iOS Hig Verify
$ npx skills add pproenca/dot-skills --skill expo-ios-hig-verify -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install pproenca/dot-skills expo-ios-hig-verify --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/pproenca/dot-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.experimental/expo-ios-hig-verify .claude/skills/expo-ios-hig-verify && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "expo-ios-hig-verify" agent skill from https://github.com/pproenca/dot-skills/tree/master/skills/.experimental/expo-ios-hig-verify into .claude/skills/expo-ios-hig-verify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "expo-ios-hig-verify", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/pproenca/dot-skills/tree/master/skills/.experimental/expo-ios-hig-verifyType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add pproenca/dot-skills --skill expo-ios-hig-verify -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install pproenca/dot-skills expo-ios-hig-verify --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/pproenca/dot-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/.experimental/expo-ios-hig-verify .agents/skills/expo-ios-hig-verify && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "expo-ios-hig-verify" agent skill from https://github.com/pproenca/dot-skills/tree/master/skills/.experimental/expo-ios-hig-verify into .agents/skills/expo-ios-hig-verify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "expo-ios-hig-verify", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add pproenca/dot-skills --skill expo-ios-hig-verify -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install pproenca/dot-skills expo-ios-hig-verify --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/pproenca/dot-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/.experimental/expo-ios-hig-verify .cursor/skills/expo-ios-hig-verify && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "expo-ios-hig-verify" agent skill from https://github.com/pproenca/dot-skills/tree/master/skills/.experimental/expo-ios-hig-verify into .cursor/skills/expo-ios-hig-verify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "expo-ios-hig-verify", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/pproenca/dot-skills.git --path skills/.experimental/expo-ios-hig-verify--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add pproenca/dot-skills --skill expo-ios-hig-verify -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install pproenca/dot-skills expo-ios-hig-verify --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/pproenca/dot-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/.experimental/expo-ios-hig-verify .gemini/skills/expo-ios-hig-verify && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "expo-ios-hig-verify" agent skill from https://github.com/pproenca/dot-skills/tree/master/skills/.experimental/expo-ios-hig-verify into .gemini/skills/expo-ios-hig-verify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "expo-ios-hig-verify", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install pproenca/dot-skills expo-ios-hig-verifyInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add pproenca/dot-skills --skill expo-ios-hig-verify -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/pproenca/dot-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/.experimental/expo-ios-hig-verify .github/skills/expo-ios-hig-verify && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "expo-ios-hig-verify" agent skill from https://github.com/pproenca/dot-skills/tree/master/skills/.experimental/expo-ios-hig-verify into .github/skills/expo-ios-hig-verify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "expo-ios-hig-verify", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add pproenca/dot-skills --skill expo-ios-hig-verify -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install pproenca/dot-skills expo-ios-hig-verify --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/pproenca/dot-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/.experimental/expo-ios-hig-verify .opencode/skills/expo-ios-hig-verify && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "expo-ios-hig-verify" agent skill from https://github.com/pproenca/dot-skills/tree/master/skills/.experimental/expo-ios-hig-verify into .opencode/skills/expo-ios-hig-verify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "expo-ios-hig-verify", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
expo-ios-hig-verify- GitHub stars
- 215
- Token cost
- ~1.1k tokens
- SKILL.md length
- 379 words
- Files
- 6 (incl. scripts, references)
- Skills in repo
- 41
- Repo updated
- First seen
- Licence
- MIT
At a glance
Static scan of an Expo / React Native iOS app for non-native patterns — Material component kits, JS navigators instead of native stack/tabs, PanResponder, disabled font scaling, hardcoded hex…
- Works in 4 steps: Run scripts/verify-hig.sh against the… → Read the grouped report; open the linked… → Treat ERRORS as must-fix before… → …
- The user asks to check
- SKILL.md covers When to Apply, Workflow Overview, Checks and Setup, plus 2 more sections
- Runs Shell scripts from its folder; calls bash
What it does
Expo iOS Hig Verify is an agent skill from pproenca/dot-skills. Static scan of an Expo / React Native iOS app for non-native patterns — Material component kits, JS navigators instead of native stack/tabs, PanResponder, disabled font scaling, hardcoded hex colors, unvirtualized lists — reports each violation with file:line and a link to the rule. Trigger when the user asks to check, lint, audit, or review an Expo iOS app for HIG compliance or "native feel," or before shipping/merging Expo iOS UI. Pairs with the expo-ios-hig rules skill (it checks what that skill teaches) and…
Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including scripts and reference files (for example `config.json`, `gotchas.md` and `metadata.json`).
It sits in Mobile, covering Cross-platform mobile apps and iOS development. It works with iOS, Expo and React Native. The repository describes itself as: A collection of AI agent skills following the Agent Skills open format. The licence is MIT.
When your agent uses it
- The user asks to check
- Review an Expo iOS app for HIG compliance
- Before shipping/merging Expo iOS UI
Example prompts
- “native feel,”
- “/expo-ios-hig-verify”
Requirements
- A Bash shell
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Run scripts/verify-hig.sh against the Expo project root.
- Read the grouped report; open the linked rule file for any finding to see the fix.
- Treat ERRORS as must-fix before shipping; review ADVISORIES (they include intentional exceptions).
- To extend: add a check ERROR|ADVISORY "" "" line in run_checks() — see references/workflow.md.
What it can do on your machine
Read from SKILL.md and the folder at commit cf93c57. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Shell), which the agent can run.
Shell commands in SKILL.md call:
bash
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Expo iOS Hig Verify loads about 1.1k tokens when it runs, and up to ~1.9k if it reads all its reference files. Until then it costs about 142 tokens; SKILL.md has 379 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
The full file from pproenca/dot-skills at commit cf93c57, republished under its MIT licence (© pproenca). 379 words, ~1,119 tokens.
Download SKILL.mdSave it as
.claude/skills/expo-ios-hig-verify/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.- name
- expo-ios-hig-verify
- description
- Static scan of an Expo / React Native iOS app for non-native patterns — Material component kits, JS navigators instead of native stack/tabs, PanResponder, disabled font scaling, hardcoded hex colors, unvirtualized lists — reports each violation with file:line and a link to the rule. Trigger when the user asks to check, lint, audit, or review an Expo iOS app for HIG compliance or "native feel," or before shipping/merging Expo iOS UI. Pairs with the expo-ios-hig rules skill (it checks what that skill teaches) and the expo-ios-screen-scaffolder.
Expo iOS HIG Verifier
A read-only static checker that scans an Expo (React Native) project for violations of the expo-ios-hig rules and reports them grouped by severity, with file:line locations and links to the rule that explains the fix. It is the automated counterpart to the expo-ios-hig reference skill: that skill teaches the rules; this one checks them.
When to Apply
Run this skill when:
- The user asks to check, lint, audit, or review an Expo app for HIG compliance or native feel
- Before merging or shipping Expo iOS UI changes, as a quality gate
- After scaffolding new screens, to confirm they stay native
- Investigating why an Expo app "feels like a web wrapper" or "feels like Android"
It is read-only — it never modifies the target project, so it is safe to run unsupervised.
Workflow Overview
verify-hig.sh [project-dir]
1. Resolve search roots (app/ src/ components/ by default, or config.json)
2. Run static checks — one per detectable expo-ios-hig rule (rg, or grep fallback)
3. Aggregate findings: severity, rule, message, file:line
4. Print grouped report (ERRORS then ADVISORIES) with a link to each rule
5. Exit 0 if clean, 1 if any ERROR (with --strict, advisories fail too)Run it:
bash scripts/verify-hig.sh /path/to/expo-app # text report
bash scripts/verify-hig.sh /path/to/expo-app --strict # advisories also fail
bash scripts/verify-hig.sh /path/to/expo-app --json # machine-readableChecks
ERRORS are high-precision (import and literal-flag matches, low false positives). ADVISORIES are heuristics that warrant a look but don't fail the run unless --strict.
| Severity | Rule | Detects |
|---|---|---|
| ERROR | native-avoid-material-ui | react-native-paper, @react-native-material/*, @rneui/*, react-native-elements imports |
| ERROR | nav-native-stack | @react-navigation/stack / createStackNavigator |
| ERROR | touch-gesture-handler-thread | PanResponder |
| ERROR | touch-pressable-feedback | TouchableWithoutFeedback |
| ERROR | acc-dynamic-type | allowFontScaling={false} |
| ERROR | motion-ui-thread-animation | useNativeDriver: false |
| ADVISORY | nav-native-tabs | createBottomTabNavigator (JS tab bar) |
| ADVISORY | visual-semantic-colors | hardcoded hex in color:/backgroundColor:/borderColor:/tintColor: |
| ADVISORY | visual-system-font | custom fontFamily: |
| ADVISORY | system-status-bar | hardcoded StatusBar style="dark"/"light" |
| ADVISORY | motion-virtualized-lists | a file using both <ScrollView> and .map( |
Each finding links to expo-ios-hig/references/{rule}.md (path configurable in config.json) for the explanation and fix.
Show full SKILL.md (145 more words)Show less
Setup
config.json is optional — sensible defaults apply. Override on first use if your project differs:
search_roots— space-separated source dirs to scan (defaultapp src components)skill_rules_dir— path used in report links to theexpo-ios-higrule files (default../expo-ios-hig/references)
If jq is installed, the script reads these from config.json; otherwise it uses the defaults. rg (ripgrep) is used when available, with a grep fallback — no hard dependency.
How to Use
- Run
scripts/verify-hig.shagainst the Expo project root. - Read the grouped report; open the linked rule file for any finding to see the fix.
- Treat ERRORS as must-fix before shipping; review ADVISORIES (they include intentional exceptions).
- To extend: add a
check ERROR|ADVISORY <rule> "<message>" "<regex>"line inrun_checks()— see references/workflow.md.
Related Skills
expo-ios-hig— the rules this verifier checks; every finding links back to it.expo-ios-screen-scaffolder— generates screens that pass these checks by construction.
© pproenca, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 5 other files (scripts, references) in skills/.experimental/expo-ios-hig-verify of pproenca/dot-skills.
- SKILL.md
- config.json
- gotchas.md
- metadata.json
- references/workflow.md
- scripts/verify-hig.sh
Open the folder on GitHubat commit cf93c57
Compare with similar skills
Expo iOS Hig Verify next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Expo iOS Hig Verify this skillpproenca/dot-skills | 215 | — | ~1.1k | Automated safety check: Pass | MIT | |
| Expo Brownfield Integrationmweinbach/agent-coworker | 156 | 2 repos | ~900 | Automated safety check: Notes | Custom licence | |
| Expo UIarcboxlabs/linkcode | 155 | — | ~1.2k | Automated safety check: Pass | MIT | |
| React Native Healthkit Contributingkingstinct/react-native-healthkit | 716 | — | ~1.3k | Automated safety check: Pass | MIT | |
| Web To Mobilesuntay44/web-to-mobile-magic-plugin | 107 | — | ~781 | Automated safety check: Pass | MIT | |
| Mobile Devcallstackincubator/codex-mobile-dev-plugin | 152 | — | ~5.5k | Automated safety check: Pass | None |
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Related
Works with
Categories
Questions about Expo iOS Hig Verify
What does Expo iOS Hig Verify do?
Static scan of an Expo / React Native iOS app for non-native patterns — Material component kits, JS navigators instead of native stack/tabs, PanResponder, disabled font scaling, hardcoded hex…. Expo iOS Hig Verify is an agent skill from pproenca/dot-skills. Static scan of an Expo / React Native iOS app for non-native patterns — Material component kits, JS navigators instead of native stack/tabs, PanResponder, disabled font scaling, hardcoded hex colors, unvirtualized lists — reports each violation with file:line and a link to the rule.
When should I use Expo iOS Hig Verify?
Expo iOS Hig Verify fits situations like: the user asks to check; review an Expo iOS app for HIG compliance; before shipping/merging Expo iOS UI.
How do I install Expo iOS Hig Verify in Claude Code?
Run `npx skills add pproenca/dot-skills --skill expo-ios-hig-verify -a claude-code`. Or copy the skill folder (skills/.experimental/expo-ios-hig-verify in pproenca/dot-skills) into .claude/skills/expo-ios-hig-verify in your project. Claude Code loads it when a task matches its description.
How do I install Expo iOS Hig Verify in Codex?
Run `npx skills add pproenca/dot-skills --skill expo-ios-hig-verify -a codex`. Or copy the skill folder (skills/.experimental/expo-ios-hig-verify in pproenca/dot-skills) into .agents/skills/expo-ios-hig-verify in your project. Codex loads it when a task matches its description.
Can I use Expo iOS Hig Verify in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add pproenca/dot-skills --skill expo-ios-hig-verify -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/expo-ios-hig-verify, .gemini/skills/expo-ios-hig-verify, .github/skills/expo-ios-hig-verify and .opencode/skills/expo-ios-hig-verify in your project.
What does Expo iOS Hig Verify need to run?
Going by SKILL.md and its folder, Expo iOS Hig Verify needs a shell for the scripts in its folder and the command-line tools its instructions call (bash). Our summary lists: A Bash shell.
Does Expo iOS Hig Verify access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Expo iOS Hig Verify safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Expo iOS Hig Verify use?
Expo iOS Hig Verify is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Expo iOS Hig Verify use?
About 1.1k tokens (SKILL.md is roughly 4.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 820 tokens, read only when the agent opens those files.
What are the alternatives to Expo iOS Hig Verify?
Skills that share tags, products or a category with Expo iOS Hig Verify: Expo Brownfield Integration (mweinbach/agent-coworker, 156 stars), Expo UI (arcboxlabs/linkcode, 155 stars), React Native Healthkit Contributing (kingstinct/react-native-healthkit, 716 stars) and Web To Mobile (suntay44/web-to-mobile-magic-plugin, 107 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Expo iOS Hig Verify?
pproenca (a GitHub user) maintains it in pproenca/dot-skills, which has 215 GitHub stars. The repository holds 41 skills in this directory. The repository was last updated on August 15, 2026.
Source: pproenca/dot-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.