All comparisons

AMP vs Codex

A head-to-head look at AMP and Codex — two popular AI coding agents — and how BuySkills fits into each workflow.

Agent framework

AMP

AMP is Sourcegraph's agentic coding tool, integrated with their code search and batch change platform. It combines agent workflows with large-scale code intelligence.

AMP plugins on BuySkills

Terminal CLI

Codex

OpenAI's Codex is a command-line coding agent built for autonomous software engineering tasks. It runs locally, executes tools in a sandbox, and pairs with GPT-class models.

Codex plugins on BuySkills

Side-by-side

Dimension AMP Codex
Surface Agent framework Terminal CLI
In a nutshell Sourcegraph's agentic coding tool OpenAI's coding agent CLI
BuySkills install command npx buyskills install <skill> npx buyskills install <skill>
Cross-agent skill sharing Yes — via BuySkills Yes — via BuySkills

Use both with a single skill catalog

You don't have to pick. BuySkills lets you install a skill once and use it across AMP, Codex, and every other supported AI coding agent — without repurchasing or reconfiguring.

  • One command to install in either agent: npx buyskills install <skill>
  • Skills pinned to a version you choose — AMP or Codex updates won't break your loop
  • Explore plugins by category: testing, refactoring, documentation, git workflows, and more

AMP vs Codex — FAQ

Should I pick AMP or Codex?

It depends on where you work. AMP is sourcegraph's agentic coding tool, while Codex is openai's coding agent cli. Many developers use both and share skills across them via BuySkills — so the choice is less binary than it used to be.

Can I use the same plugins in AMP and Codex?

Yes. BuySkills is designed for cross-agent portability. Install a skill once with the BuySkills CLI and it becomes available in both AMP and Codex — and every other supported agent — without a second purchase or install.

How is installing BuySkills skills different between AMP and Codex?

It isn't, from your side. You run `npx buyskills install <skill>`, and the CLI writes the skill to the directory each agent reads from. AMP and Codex pick up the skill without any extra config.

Does AMP's agent run BuySkills skills on indexed codebases?

Yes. AMP calls BuySkills skills as part of its agent plan, and the skills have access to the same indexed codebase context that AMP's native tools do. That makes refactor and analysis skills especially powerful in AMP.

Are BuySkills skills compatible with Codex's sandbox?

Yes. BuySkills skills are packaged as portable prompt + tool definitions that run inside Codex's sandbox the same way a local skill would. No special permissions are required beyond the ones the skill itself declares.

Still deciding?

Install BuySkills CLI once and the skills you discover today work in whichever agent you pick tomorrow.

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