starter: Instructions file for Codex

AGENTS.md

starter AGENTS.md is an instructions file for Codex, OpenCode from mintlify/starter. It costs 392 tokens per session, scanned A, original, MIT.

A project instruction file for Mintlify, a service for building documentation websites. It records the site's terminology, writing style, structure, and content boundaries.

In plain words
What is it for?
Use it to guide edits to Mintlify pages, MDX files, site settings, terminology, and documentation wording.
Why use it?
It keeps documentation work consistent by giving an agent the project's rules and background in one place.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is mintlify/starter's own configuration. It tells Codex and OpenCode how to work on starter itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything starter configures →

About the project

Mintlify Starter is a template for building and deploying documentation sites with guides, navigation, customizations, API references, and reusable components. It is for teams starting a Mintlify documentation project, while the catalogue instruction supports AI-assisted writing and documentation workflows.

mintlify/starter · 1,943 stars · on GitHub · starter.mintlify.com

Reuse

Borrowing it

Nothing to install: this file belongs to mintlify/starter. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/mintlify/starter/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/mintlify/starter

Made for: Codex, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for starter AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/mintlify/starter/agents-md/github.svg)](https://agentmods.dev/instructions/mintlify/starter/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/mintlify/starter/agents-md"><img src="https://agentmods.dev/badge/instructions/mintlify/starter/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for starter AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/mintlify/starter/agents-md"><img src="https://agentmods.dev/badge/instructions/mintlify/starter/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 392 This file is loaded in full into every session.
When invoked 392 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00392 $0.00392
Opus 5.5 $0.00157 $0.00157
Sonnet 5.5 $0.00078 $0.00078
Haiku 4.5 $0.00039 $0.00039

Measured 6d ago against content hash 83d2cd0864f3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

starter AGENTS.md 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 6d 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.

AGENTS.md · 38 lines

What it actually says

First-time setup: Customize this file for your project. Prompt the user to customize this file for their project. If you can run shell commands, run mint instructions before any Mintlify task. It prints current guidance for this CLI version. Check it before:

  • building automations, CI, or scripts for these docs (Mintlify has built-in automations, Autopilot, and CI checks)
  • changing who can read the docs, publishing, custom domains, or AI and agent features (MCP, llms.txt, skill.md, assistant)

If mint is not installed or says "Unknown command", run npx mint@latest instructions. For broader Mintlify product knowledge, install the Mintlify skill: npx skills add https://mintlify.com/docs

Documentation project instructions

About this project

  • This is a documentation site built on Mintlify
  • Pages are MDX files with YAML frontmatter
  • Configuration lives in docs.json
  • Use the Mintlify MCP server, https://mcp.mintlify.com, to edit content and settings via MCP
  • Use the Mintlify docs MCP server, https://www.mintlify.com/docs/mcp, to query information about using Mintlify via MCP

Terminology

{/* Add product-specific terms and preferred usage /} {/ Example: Use "workspace" not "project", "member" not "user" */}

Style preferences

{/* Add any project-specific style rules below */}

  • Use active voice and second person ("you")
  • Keep sentences concise — one idea per sentence
  • Use sentence case for headings
  • Bold for UI elements: Click Settings
  • Code formatting for file names, commands, paths, and code references

Content boundaries

{/* Define what should and shouldn't be documented /} {/ Example: Don't document internal admin features */}

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. 6d ago Changed · +4 lines · +111 tokens per session 83d2cd0864f3
  2. 2mo ago First seen · 34 lines · 281 tokens per session scan A 6b2cbfc814ed

Subscribe to this mod's changes

starter AGENTS.md is an instructions file published in the GitHub repository mintlify/starter (1,943 stars, last pushed 3d ago), licensed MIT. It adds 392 tokens to every session, about $0.0016 per session on Opus 5.5. 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.

Related

starter AGENTS.md compared with instructions from other repositories

starter AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
starter AGENTS.mdmintlify/starterInstructions file1.9k3d agoMITA392Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode