Answer first: AGENTS.md is a project instruction file for AI coding agents. It explains how the agent should work in a repository, including coding standards, build and test commands, project rules, and workflow expectations.
README.md explains the project to humans. AGENTS.md explains the working rules to agents.
That split matters now because builders are asking agents to do real project work: inspect codebases, edit files, run apps, review changes, create docs, prepare releases, and preserve product taste across sessions. Without a durable instruction file, every session starts with guesswork.
less is more. Put the rules where the agent will actually read them, then stop repeating yourself.
What AGENTS.md should do
A good AGENTS.md gives the agent local operating context. It can include the project purpose, build commands, file map, product voice, safety rules, and done criteria.
- Use the existing design system.
- Run the app before claiming the UI works.
- Do not delete generated assets unless the task asks for cleanup.
- Check the current catalog before writing product copy.
- Keep changes scoped unless the user asks for a broad pass.
Those rules sound obvious to the person living inside the project. They are not obvious to a fresh agent session.
AGENTS.md is not a policy dump
The best AGENTS.md files are specific. Do not write “be careful” when the real rule is “do not delete customer data or generated ZIP packages.” Do not write “test your work” when the real rule is “for frontend changes, open the local app and verify the changed screen.”
Specific instructions reduce drift. Generic instructions create noise.
How this helps V8V work
For a V8V content or Shopify folder, AGENTS.md can preserve the facts that should not drift: 28 bundles, 93 verified skills, Complete Collection as the full-library offer, answer-first GEO structure, current product names, and the quiet brand voice.
That is exactly why this file matters for product copy, blog posts, images, and storefront polish. It keeps the work made for agents, by humans.
The bottom line
AGENTS.md is project memory in plain text. It lets Codex enter the folder with fewer assumptions and a better sense of how the work should feel.
V8V: less is more. Codex Agent Builder is the focused starting point for AGENTS.md and agent workflow systems. Complete Collection includes it with the full 93-skill library.
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