Codex Build

CommunityPopular

chaseai-yt

codex-build

Have Codex implement a concrete work order and have Claude independently inspect the final changes. Preserves the explicit Codex builder choice; use claudex-loop for host-based planning and automatic reviewer selection.

Overview

Publisher	chaseai-yt
Repository	`claudex-loop`
Skill name	`codex-build`
Stars	2.1K
Forks	206
Bundled files	Instructions only
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
Self-contained
Everything the model needs lives in the instructions — no extra files to sync.
Open source
Published by chaseai-yt on GitHub. Read the source before you install it.

Installation

Install the Codex Build AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/chaseai-yt/claudex-loop.git /tmp/claudex-loop
mkdir -p .claude/skills
cp -r /tmp/claudex-loop/skills/codex-build .claude/skills/codex-build

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Codex Build in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Codex Build on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Codex Build is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Codex Build

Compatibility entry point: the builder is explicitly Codex. The shared workflow and executable live in the sibling claudex-loop skill; install that skill alongside this one.

Load the shared build reference and runtime reference. Preserve SPEC_FILE (mapped to the runner's --plan), LOG_FILE, PROOF_CMD, MAX_FIX_ROUNDS, and explicit model/effort arguments. The spec may have any filename; never substitute PLAN.md silently.

In Claude Code, Claude coordinates and delegates implementation to Codex through the runner's build --host claude --builder codex path. Claude then inspects all changes and independently runs proof checks. Log evidence and limitations. A fresh Claude CLI inspector is also available through the shared runner if useful.
In Codex, implement in the current host session with its normal tools, then use a fresh Claude inspector through inspect --host codex --builder codex. Do not ask Codex to certify its own changes as independent review.

Use the current valid plan approval when this follows claudex-loop. An explicitly requested standalone work order can use --unreviewed-spec, with that status recorded. If the spec still needs consequential decisions, settle those before delegating; do not build by inventing missing requirements.

Preserve unrelated changes, record the baseline, independently run the proof, inspect staged and new files as well as the unstaged diff, and keep fix rounds bounded. After a Claude takeover, require fresh Codex inspection of Claude's edits; if both contributed, log authorship and have each inspect the other's changes. Never present an earlier review as covering later fixes. Present the completed diff for any remaining sign-off required by the user's authorization.

Frequently asked questions

What does the Codex Build AI skill do?

Why use Codex Build on TypingMind?

Because you install it once and use it with any model. Codex Build is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Codex Build in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/chaseai-yt/claudex-loop/tree/main/skills/codex-build. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Codex Build?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Codex Build?

As many as you like. As long as a model supports skills, you can use Codex Build with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Codex Build AI skill free?

It is published on GitHub by chaseai-yt. Check the repository for licensing terms. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

View all

Continuous Learning V2

affaan-m

CommunityPopular

Sistema de aprendizaje basado en instintos que observa sesiones mediante hooks, crea instintos atómicos con puntuación de confianza y los evoluciona en skills/comandos/agentes. v2.1 agrega instintos…

Continuous Learning

[OBSOLETO - usar continuous-learning-v2] Extractor de skill por hook Stop v1 heredado. v2 es un superconjunto estricto con aprendizaje basado en instintos, con alcance de proyecto y hooks confiables.…

Database Migrations

Buenas prácticas de migración de base de datos para cambios de esquema, migraciones de datos, rollbacks y despliegues de tiempo cero en PostgreSQL, MySQL y ORMs comunes (Prisma, Drizzle, Kysely,…

Docker Patterns

Patrones de Docker y Docker Compose para desarrollo local, seguridad de contenedores, networking, estrategias de volúmenes y orquestación de múltiples servicios.

Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Codex Build

Frequently asked questions

Related AI Skills

Set up your own AI workspace now