agentmods.dev

codex-studio-setup

A setup guide for bringing a Codex Studio checkout to a runnable state, including dependencies, local configuration, its library, database setup, the Codex command-line tool, authentication, and startup checks.

In plain words
What is it for?
Use it for first-run setup, dependency and migration checks, creating the default library and workspace, verifying Codex access, and checking that the UI and backend start.
Why use it?
It gives a new checkout a repeatable path from the welcome screen to a working local application, while stopping when user login or installation is required.

Skill for Claude CodeCodex

12 3d ago A scan 26 tokens original MIT
View the source file gvastethecreator/codex-studio
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/gvastethecreator/codex-studio/codex-studio-setup
Any agent
npx skills add gvastethecreator/codex-studio --skill codex-studio-setup
Clone the repo
git clone --depth 1 https://github.com/gvastethecreator/codex-studio

Made for: Claude Code, Codex.

Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,314 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00026 $0.01314
Opus 5 $0.00013 $0.00657
Sonnet 5 $0.00005 $0.00263
Haiku 4.5 $0.00003 $0.00131

Measured 2d ago against content hash 40a2d34f83a4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

codex-studio-setup scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/codex-studio-setup/SKILL.md · 140 lines

How it starts

The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Codex Studio Setup

Use when a user asks to make this repo ready for first run, or when the welcome screen provides a setup handoff prompt.

Objective

Bring a Codex Studio checkout to a runnable local state:

  • dependencies installed and repo scripts runnable
  • .env.local bootstrap present and sane
  • Studio Library initialized outside the repo
  • SQLite migrations, default library, and default workspace created
  • Codex CLI available, app-server-capable, and authenticated with ChatGPT login
  • codex app-server reachable through the backend
  • UI and backend start cleanly
  • closeout checks run once

Onboarding loop

Copy prompt and Ask Codex on the welcome surface use this skill as the Setup Prompt (CODEX_STUDIO_SETUP_SKILL_PATH in lib/onboardingSetupPrompt.ts). Keep that ownership. Do not move the prompt body into the renderer.

The product loop is detect, consent, mutate, stream, re-validate. One primary CTA:

  1. Missing Bun: open https://bun.sh/docs/installation. Never silent-install Bun.
  2. Missing Codex CLI: open https://github.com/openai/codex. Never silent-install Codex.
  3. Codex CLI present, ChatGPT login missing: stop and ask the user to run codex login and choose ChatGPT. Login is not bundled.
  4. Studio Library or Bootstrap Configuration missing: in-app Setup, or bun run studio:onboard --setup, after explicit consent.
  5. Everything else ready except Codex Product Runtime: start app-server through the local backend.
  6. Ready: Open Studio.

Ask Codex is an extra path when Codex CLI exists. Grok Imagine is an optional provider row, never a Studio installer.

Default Studio Library is a folder named Codex Studio in the user home. Existing STUDIO_LIBRARY_DIR is kept. Do not auto-migrate AI-Studio-Library. Preferred Output Path is not the generate destination. New generations go under outputs/<workspace>/ inside the Studio Library.

Safety

  • Preserve dirty worktree changes you did not make.
  • Never commit or print Provider Secret values.
  • Do not store Provider Secrets in SQLite, catalog metadata, logs, screenshots, docs, or committed files.
  • Do not delete, move, compact, or rewrite Studio Library data unless the user explicitly confirms that destructive operation.
  • Keep generated images, SQLite files, transcripts, logs, local outputs, and .env.local uncommitted.
  • Use apply_patch for manual repo edits.
  • Run broad gates only at closeout unless a focused failure requires a small targeted check.

Read the full file on GitHub · 140 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 140 lines · 26 tokens per session scan A 40a2d34f83a4

Subscribe to this mod's changes

codex-studio-setup is a skill published in the GitHub repository gvastethecreator/codex-studio (12 stars, last pushed 3d ago), licensed MIT. It adds 26 tokens to every session and 1,314 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Creative and mediaE-commerceFrontendbuncodexcodex-clidesktopimage-genimage-generation
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