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React Native HiFi for Codex

Guide for using React Native HiFi with OpenAI Codex via native skill discovery.

Quick Install

Tell Codex:

Fetch and follow instructions from https://raw.githubusercontent.com/bidah/react-native-hifi/refs/heads/main/.codex/INSTALL.md

Manual Installation

Prerequisites

  • OpenAI Codex CLI
  • Git

Steps

  1. Clone the repo:

    git clone https://github.com/bidah/react-native-hifi.git ~/.codex/react-native-hifi

  2. Create the skills symlink:

    mkdir -p ~/.agents/skills
ln -s ~/.codex/react-native-hifi/skills ~/.agents/skills/react-native-hifi

  3. Restart Codex.

  4. For subagent skills (optional): Skills like dispatching-parallel-agents and subagent-driven-development require Codex's collab feature. Add to your Codex config:

    [features]
collab = true

Windows

Use a junction instead of a symlink (works without Developer Mode):

New-Item -ItemType Directory -Force -Path "$env:USERPROFILE\.agents\skills"
cmd /c mklink /J "$env:USERPROFILE\.agents\skills\react-native-hifi" "$env:USERPROFILE\.codex\react-native-hifi\skills"

How It Works

Codex has native skill discovery — it scans ~/.agents/skills/ at startup, parses SKILL.md frontmatter, and loads skills on demand. React Native HiFi skills are made visible through a single symlink:

~/.agents/skills/react-native-hifi/ → ~/.codex/react-native-hifi/skills/

The using-react-native-hifi skill is discovered automatically and enforces skill usage discipline — no additional configuration needed.

Usage

Skills are discovered automatically. Codex activates them when:

  • You mention a skill by name (e.g., "use brainstorming")
  • The task matches a skill's description
  • The using-react-native-hifi skill directs Codex to use one

Personal Skills

Create your own skills in ~/.agents/skills/:

mkdir -p ~/.agents/skills/my-skill

Create ~/.agents/skills/my-skill/SKILL.md:

---
name: my-skill
description: Use when [condition] - [what it does]
---

# My Skill

[Your skill content here]

The description field is how Codex decides when to activate a skill automatically — write it as a clear trigger condition.

Updating

cd ~/.codex/react-native-hifi && git pull

Skills update instantly through the symlink.

Uninstalling

rm ~/.agents/skills/react-native-hifi

Windows (PowerShell):

Remove-Item "$env:USERPROFILE\.agents\skills\react-native-hifi"

Optionally delete the clone: rm -rf ~/.codex/react-native-hifi (Windows: Remove-Item -Recurse -Force "$env:USERPROFILE\.codex\react-native-hifi").

Troubleshooting

Skills not showing up

  1. Verify the symlink: ls -la ~/.agents/skills/react-native-hifi
  2. Check skills exist: ls ~/.codex/react-native-hifi/skills
  3. Restart Codex — skills are discovered at startup

Windows junction issues

Junctions normally work without special permissions. If creation fails, try running PowerShell as administrator.

Getting Help