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OpenAI Codex Rules & Skills

60 presets across 30 technologies

Angular Code Review Skill for Codex

Review an Angular change for standalone components, signals, zoneless updates, and Signal Forms. Use for an Angular code review. Do not use for a new NgModule-first app or a non-Angular repository.

# Angular Code Review Skill for Codex ## Install Install the native export at `.agents/skills/angular-code-review/SKILL.md` (one file shared with Antigravity CLI). Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Angular Code Review Shared skill `angular-code-review` for Angular. Codex and Antigravity CLI both read `.agents/skills/angular-code-review/SKILL.md`. Install this one file. Codex calls it with `$angular-code-review` or `/skills`. Cursor, GitHub Copilot, and Devin also read `.agents/skills`. A second copy with the same name collide...

Angular Codex Instructions: Standalone Components, Signals and Forms

Codex instructions for Angular: Standalone Components, Signals and Forms. Append to AGENTS.md. Structure, security, and tests. Angular 22.2.6, Nov 2026.

# Angular Codex Instructions: Standalone Components, Signals and Forms ## Install Install the native export at `AGENTS.md` as an appended section, not a replacement and not a custom agent. Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Angular Codex Instructions: Standalone Components, Signals and Forms Section to append to `AGENTS.md` for Angular. This is project guidance, not a custom agent. ## Updated for Angular 22.2.6, Nov 2026 Do not upgrade dependencies or the framework version unless the task asks. ## Project shape New componen...

Django Codex Instructions: ORM, Permissions and Migrations

Codex instructions for Django: ORM, Permissions and Migrations. Append to AGENTS.md. Structure, security, and tests. Django 6.1.3, Nov 2026.

# Django Codex Instructions: ORM, Permissions and Migrations ## Install Install the native export at `AGENTS.md` as an appended section, not a replacement and not a custom agent. Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Django Codex Instructions: ORM, Permissions and Migrations Section to append to `AGENTS.md` for Django. This is project guidance, not a custom agent. ## Updated for Django 6.1.3, Nov 2026 Do not upgrade dependencies or the framework version unless the task asks. ## Project shape An app owns its models, forms, and ...

Django Security Review Skill for Codex

Review a Django change for permission checks, ORM query shape, and migration behavior. Use for a Django security review. Do not use for a non-Django project or to assume a database cascade runs Django signals.

# Django Security Review Skill for Codex ## Install Install the native export at `.agents/skills/django-security-review/SKILL.md` (one file shared with Antigravity CLI). Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Django Security Review Shared skill `django-security-review` for Django. Codex and Antigravity CLI both read `.agents/skills/django-security-review/SKILL.md`. Install this one file. Codex calls it with `$django-security-review` or `/skills`. Cursor, GitHub Copilot, and Devin also read `.agents/skills`. A second copy with the ...

Docker Codex Instructions: Images, Runtime Users and Build Secrets

Codex instructions for Docker: Images, Runtime Users and Build Secrets. Append to AGENTS.md. Structure, security, and tests. Docker Engine 29, Nov 2026.

# Docker Codex Instructions: Images, Runtime Users and Build Secrets ## Install Install the native export at `AGENTS.md` as an appended section, not a replacement and not a custom agent. Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Docker Codex Instructions: Images, Runtime Users and Build Secrets Section to append to `AGENTS.md` for Docker. This is project guidance, not a custom agent. ## Updated for Docker Engine 29, Nov 2026 Do not upgrade dependencies or the framework version unless the task asks. Keep Engine, BuildKit, and Compos...

Docker Security Review Skill for Codex

Review a Dockerfile or Compose file for root runtime, latest tags, secrets in layers, and the Docker socket. Use for a Docker security review. Do not use for a non-container change or to mount the Docker socket into an app container.

# Docker Security Review Skill for Codex ## Install Install the native export at `.agents/skills/docker-security-review/SKILL.md` (one file shared with Antigravity CLI). Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Docker Security Review Shared skill `docker-security-review` for Docker. Codex and Antigravity CLI both read `.agents/skills/docker-security-review/SKILL.md`. Install this one file. Codex calls it with `$docker-security-review` or `/skills`. Cursor, GitHub Copilot, and Devin also read `.agents/skills`. A second copy with the ...

.NET Code Review Skill for Codex

Review a .NET change for async cancellation, endpoint authorization, and C# syntax the target framework does not have. Use for a .NET code review. Do not use for a non-.NET repository or to retarget the TFM unasked.

# .NET Code Review Skill for Codex ## Install Install the native export at `.agents/skills/dotnet-code-review/SKILL.md` (one file shared with Antigravity CLI). Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # .NET Code Review Shared skill `dotnet-code-review` for .NET. Codex and Antigravity CLI both read `.agents/skills/dotnet-code-review/SKILL.md`. Install this one file. Codex calls it with `$dotnet-code-review` or `/skills`. Cursor, GitHub Copilot, and Devin also read `.agents/skills`. A second copy with the same name collides. Do not ins...

.NET Codex Instructions: Nullable Contracts, Async and Endpoints

Codex instructions for .NET: Nullable Contracts, Async and Endpoints. Append to AGENTS.md. Structure, security, and tests. .NET 10 LTS and .NET 11, Nov 2026.

# .NET Codex Instructions: Nullable Contracts, Async and Endpoints ## Install Install the native export at `AGENTS.md` as an appended section, not a replacement and not a custom agent. Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # .NET Codex Instructions: Nullable Contracts, Async and Endpoints Section to append to `AGENTS.md` for .NET. This is project guidance, not a custom agent. ## Updated for .NET 10 LTS and .NET 11, Nov 2026 Do not upgrade dependencies or the framework version unless the task asks. .NET 11 includes C# 15 unions an...

Express Codex Instructions: Middleware, Routing and Validation

Codex instructions for Express: Middleware, Routing and Validation. Append to AGENTS.md. Structure, security, and tests. Express 5.3.0, Nov 2026.

# Express Codex Instructions: Middleware, Routing and Validation ## Install Install the native export at `AGENTS.md` as an appended section, not a replacement and not a custom agent. Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Express Codex Instructions: Middleware, Routing and Validation Section to append to `AGENTS.md` for Express. This is project guidance, not a custom agent. ## Updated for Express 5.3.0, Nov 2026 Do not upgrade dependencies or the framework version unless the task asks. ## Project shape Middleware is an ordered ...

Express Security Review Skill for Codex

Review an Express app for middleware order, Express 5 route syntax, validation, and auth. Use for an Express security review. Do not use for a Fastify or NestJS app, or to forward errors twice.

# Express Security Review Skill for Codex ## Install Install the native export at `.agents/skills/express-security-review/SKILL.md` (one file shared with Antigravity CLI). Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Express Security Review Shared skill `express-security-review` for Express. Codex and Antigravity CLI both read `.agents/skills/express-security-review/SKILL.md`. Install this one file. Codex calls it with `$express-security-review` or `/skills`. Cursor, GitHub Copilot, and Devin also read `.agents/skills`. A second copy wi...

FastAPI Codex Instructions: Pydantic Models, Dependencies and Async

Codex instructions for FastAPI: Pydantic Models, Dependencies and Async. Append to AGENTS.md. Structure, security, and tests. FastAPI 0.162.5, Nov 2026.

# FastAPI Codex Instructions: Pydantic Models, Dependencies and Async ## Install Install the native export at `AGENTS.md` as an appended section, not a replacement and not a custom agent. Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # FastAPI Codex Instructions: Pydantic Models, Dependencies and Async Section to append to `AGENTS.md` for FastAPI. This is project guidance, not a custom agent. ## Updated for FastAPI 0.162.5, Nov 2026 Do not upgrade dependencies or the framework version unless the task asks. ## Project shape Routers are s...

FastAPI Security Review Skill for Codex

Review a FastAPI change for Pydantic validation, auth dependencies, and blocking work in async routes. Use for a FastAPI security review. Do not use for a non-FastAPI Python script or to expose a hidden field in a response model.

# FastAPI Security Review Skill for Codex ## Install Install the native export at `.agents/skills/fastapi-security-review/SKILL.md` (one file shared with Antigravity CLI). Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # FastAPI Security Review Shared skill `fastapi-security-review` for FastAPI. Codex and Antigravity CLI both read `.agents/skills/fastapi-security-review/SKILL.md`. Install this one file. Codex calls it with `$fastapi-security-review` or `/skills`. Cursor, GitHub Copilot, and Devin also read `.agents/skills`. A second copy wi...

Flutter Codex Instructions: Widgets, Async UI and Platform Builds

Codex instructions for Flutter: Widgets, Async UI and Platform Builds. Append to AGENTS.md. Structure, security, and tests. Flutter 3.50, Nov 2026.

# Flutter Codex Instructions: Widgets, Async UI and Platform Builds ## Install Install the native export at `AGENTS.md` as an appended section, not a replacement and not a custom agent. Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Flutter Codex Instructions: Widgets, Async UI and Platform Builds Section to append to `AGENTS.md` for Flutter. This is project guidance, not a custom agent. ## Updated for Flutter 3.50, Nov 2026 Do not upgrade dependencies or the framework version unless the task asks. Write for the Flutter version in `pubs...

Flutter Test Writer Skill for Codex

Write a Flutter widget or unit test for a behavior, including the mounted check after an await. Use when the user asks for Flutter tests. Do not use for a non-Flutter repository or to edit a generated file.

# Flutter Test Writer Skill for Codex ## Install Install the native export at `.agents/skills/flutter-test-writer/SKILL.md` (one file shared with Antigravity CLI). Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Flutter Test Writer Shared skill `flutter-test-writer` for Flutter. Codex and Antigravity CLI both read `.agents/skills/flutter-test-writer/SKILL.md`. Install this one file. Codex calls it with `$flutter-test-writer` or `/skills`. Cursor, GitHub Copilot, and Devin also read `.agents/skills`. A second copy with the same name collide...

Go Code Review Skill for Codex

Review a Go change for ignored errors, goroutine leaks, and context that is not canceled. Use for a Go code review. Do not use for a non-Go repository or to enable an experimental flag by default.

# Go Code Review Skill for Codex ## Install Install the native export at `.agents/skills/go-code-review/SKILL.md` (one file shared with Antigravity CLI). Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Go Code Review Shared skill `go-code-review` for Go. Codex and Antigravity CLI both read `.agents/skills/go-code-review/SKILL.md`. Install this one file. Codex calls it with `$go-code-review` or `/skills`. Cursor, GitHub Copilot, and Devin also read `.agents/skills`. A second copy with the same name collides. Do not install another tool's fi...

Go Codex Instructions: Errors, Context and Goroutines

Codex instructions for Go: Errors, Context and Goroutines. Append to AGENTS.md. Structure, security, and tests. Go 1.27.4, Nov 2026.

# Go Codex Instructions: Errors, Context and Goroutines ## Install Install the native export at `AGENTS.md` as an appended section, not a replacement and not a custom agent. Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Go Codex Instructions: Errors, Context and Goroutines Section to append to `AGENTS.md` for Go. This is project guidance, not a custom agent. ## Updated for Go 1.27.4, Nov 2026 Do not upgrade dependencies or the framework version unless the task asks. Go 1.27.4 is the current stable release on `go.dev/dl`. Go 1.26.11 is ...

Kotlin Code Review Skill for Codex

Review a Kotlin change for coroutine cancellation, lifecycle-aware flows, and null assertions. Use for a Kotlin code review. Do not use for a non-Kotlin repository or to swallow CancellationException.

# Kotlin Code Review Skill for Codex ## Install Install the native export at `.agents/skills/kotlin-code-review/SKILL.md` (one file shared with Antigravity CLI). Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Kotlin Code Review Shared skill `kotlin-code-review` for Kotlin. Codex and Antigravity CLI both read `.agents/skills/kotlin-code-review/SKILL.md`. Install this one file. Codex calls it with `$kotlin-code-review` or `/skills`. Cursor, GitHub Copilot, and Devin also read `.agents/skills`. A second copy with the same name collides. Do n...

Kotlin Codex Instructions: Coroutines, Null Safety and Compose

Codex instructions for Kotlin: Coroutines, Null Safety and Compose. Append to AGENTS.md. Structure, security, and tests. Kotlin 2.4 stable line, Nov 2026.

# Kotlin Codex Instructions: Coroutines, Null Safety and Compose ## Install Install the native export at `AGENTS.md` as an appended section, not a replacement and not a custom agent. Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Kotlin Codex Instructions: Coroutines, Null Safety and Compose Section to append to `AGENTS.md` for Kotlin. This is project guidance, not a custom agent. ## Updated for Kotlin 2.4, Nov 2026 Do not upgrade dependencies or the framework version unless the task asks. Stay on the Kotlin version the Gradle build use...

Laravel Codex Instructions: Requests, Policies and Eloquent

Codex instructions for Laravel: Requests, Policies and Eloquent. Append to AGENTS.md. Structure, security, and tests. Laravel 13, Nov 2026.

# Laravel Codex Instructions: Requests, Policies and Eloquent ## Install Install the native export at `AGENTS.md` as an appended section, not a replacement and not a custom agent. Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Laravel Codex Instructions: Requests, Policies and Eloquent Section to append to `AGENTS.md` for Laravel. This is project guidance, not a custom agent. ## Updated for Laravel 13, Nov 2026 Do not upgrade dependencies or the framework version unless the task asks. Laravel 13 requires PHP 8.3 through 8.5. Read `compo...

Laravel Security Review Skill for Codex

Review a Laravel change for policies, Form Request validation, and mass assignment. Use for a Laravel security review. Do not use for a non-Laravel PHP script or to run a migration against production.

# Laravel Security Review Skill for Codex ## Install Install the native export at `.agents/skills/laravel-security-review/SKILL.md` (one file shared with Antigravity CLI). Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides. <!-- native:start --> # Laravel Security Review Shared skill `laravel-security-review` for Laravel. Codex and Antigravity CLI both read `.agents/skills/laravel-security-review/SKILL.md`. Install this one file. Codex calls it with `$laravel-security-review` or `/skills`. Cursor, GitHub Copilot, and Devin also read `.agents/skills`. A second copy wi...

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