primitives: Instructions file for Codex

AGENTS.md

primitives AGENTS.md is an instructions file for Codex, OpenCode from radix-ng/primitives. It costs 148 tokens per session, scanned A, original, MIT.

A short instruction file for agents working on Radix NG Primitives, with rules for styling its Storybook component examples.

In plain words
What is it for?
Use it when creating or editing Storybook stories and component demonstrations in the Radix NG Primitives project.
Why use it?
It prevents inconsistent demos by specifying which Tailwind classes, design tokens, and shared demo shell to use, and when to ask before adding CSS.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions CLAUDE.md.

This is radix-ng/primitives's own configuration. It tells Codex and OpenCode how to work on primitives 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 primitives configures →

Reuse

Borrowing it

Nothing to install: this file belongs to radix-ng/primitives. 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/radix-ng/primitives/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/radix-ng/primitives

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.

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README.md
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Your own site
<a href="https://agentmods.dev/instructions/radix-ng/primitives/agents-md"><img src="https://agentmods.dev/badge/instructions/radix-ng/primitives/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.

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Per session 148 This file is loaded in full into every session.
When invoked 148 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 $0.00148 $0.00148
Opus 5.5 $0.00059 $0.00059
Sonnet 5.5 $0.00030 $0.00030
Haiku 4.5 $0.00015 $0.00015

Measured 2mo ago against content hash 7aed03fd76b4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

primitives 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 2mo 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 · 12 lines

What it actually says

Agent Guide

Read CLAUDE.md for the full project conventions.

Storybook Styling

  • Use Tailwind v4 utilities directly in story templates and standalone story components.
  • Do not add story-local CSS files, Angular styleUrl / styleUrls / styles, inline <style> blocks, or style="..." attributes.
  • Use semantic tokens such as bg-background, text-foreground, bg-muted, border-border, and text-primary-foreground.
  • Use packages/primitives/storybook/tailwind-demo.ts for the shared Storybook demo shell.
  • If a demo cannot reasonably be expressed with Tailwind utilities, explain why and ask before adding CSS.
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. 2mo ago First seen · 12 lines · 148 tokens per session scan A 7aed03fd76b4

Subscribe to this mod's changes

primitives AGENTS.md is an instructions file published in the GitHub repository radix-ng/primitives (277 stars, last pushed 2d ago), licensed MIT. It adds 148 tokens to every session, about $0.0006 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

primitives AGENTS.md compared with instructions from other repositories

primitives AGENTS.md next to 6 instructions from other repositories
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primitives AGENTS.mdradix-ng/primitivesInstructions file2772d agoMITA148Codex, OpenCode
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deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode