---
title: Codex CLI vs Antigravity IDE
slug: codex-vs-antigravity
type: agent-comparison
a: codex
b: antigravity
canonical: https://top-agent-skills.com/compare/codex-vs-antigravity
rubric: 1.0
---

# Codex CLI vs Antigravity IDE

Side-by-side for SKILL.md agent Skills: install model, shell access, native support, and how many Skills are verified on each.

## At a glance

| | Codex | Antigravity |
| --- | --- | --- |
| Vendor | OpenAI | Antigravity |
| Native SKILL.md support | Yes | Yes |
| Verified skills indexed | 55 | 36 |
| Install model | Local folder | Local folder |
| Shell / Bash access | Yes | Yes |
| Tagline | OpenAI's coding agent CLI. Adopted the SKILL.md spec verbatim in Dec 2025. | Antigravity IDE ships with the awesome-skills bundle (1,234+ pre-installed) out of the box. |

## Overlap

- Verified on both: 15
- Only Codex: 40
- Only Antigravity: 21

## Which should you pick?

Both support SKILL.md natively, so the choice is about ecosystem fit. Pick Codex CLI for OpenAI integrations and the workflows it makes easiest; pick Antigravity IDE for Antigravity integrations and its specific surface.

Many teams use both — Skills with the SKILL.md spec are portable, and 15 of the skills indexed here are verified on both agents.

Per-agent rankings: https://top-agent-skills.com/skills-for-codex · https://top-agent-skills.com/skills-for-antigravity

## Common questions

**Which is better for SKILL.md skills, Codex CLI or Antigravity IDE?**

Both support SKILL.md natively. Codex CLI has 55 verified skills indexed here; Antigravity IDE has 36. 15 skills work on both.

**Can I use the same Skill on Codex CLI and Antigravity IDE?**

15 of the skills indexed here work on both. The SKILL.md spec is shared, so most skills run cleanly on both — the exceptions are skills that depend on agent-specific tools (Bash, Workflows, MCP patterns).

**How do I install a Skill on Codex CLI?**

Drop the Skill folder under ~/.codex/skills/ for user-wide or .codex/skills/ for project-scoped. Codex loads SKILL.md the same way Claude Code does.

**How do I install a Skill on Antigravity IDE?**

1,234+ as of the latest release. The bundle covers document processing, code quality, security, design, marketing, data and more — most users find what they need without installing anything.

**Which agent should I pick for cross-platform skill use?**

Both support skills natively. Pick by ecosystem fit: Codex CLI for OpenAI customers, Antigravity IDE for Antigravity customers.

---

_Top Agent Skills. Machine-readable twin of https://top-agent-skills.com/compare/codex-vs-antigravity._