cypress-design: Instructions file for Codex

AGENTS.md

cypress-design AGENTS.md is an instructions file for Codex, OpenCode from cypress-io/cypress-design. It costs 2,316 tokens per session, scanned A, original, MIT.

Repository-specific instructions for working on Cypress Design, including its architecture, components, pages, comments, and review checklists.

In plain words
What is it for?
Making UI changes, writing product proposals, preparing pull requests, and reviewing changes against the project's standards.
Why use it?
They tell coding agents which project guidance to read and which checks to run before declaring design or product work complete.

Instructions file for CodexOpenCode

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

This is cypress-io/cypress-design's own configuration. It tells Codex and OpenCode how to work on cypress-design 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 cypress-design configures →

Reuse

Borrowing it

Nothing to install: this file belongs to cypress-io/cypress-design. 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/cypress-io/cypress-design/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/cypress-io/cypress-design

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 cypress-design AGENTS.md

README.md
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Your own site
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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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Your own site · 80×15
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Per session 2,316 This file is loaded in full into every session.
When invoked 2,316 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 $0.02316 $0.02316
Opus 5.5 $0.00926 $0.00926
Sonnet 5.5 $0.00463 $0.00463
Haiku 4.5 $0.00232 $0.00232

Measured 4d ago against content hash a17801cc97b0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cypress-design 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 4d 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 · 97 lines

How it starts

The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent guidance

Before doing any work, you MUST read:

  • /.agents/architecture.md — repo structure, build, deploy.
  • /.agents/index.md — router for design, voice, and component guidance. Fetch only the pillars and components the task needs. Don't load them all preemptively.

Before claiming any UI / visual / content task is done, run /.agents/review-checklist.md against your own diff.

When the work is a product brief, initiative, or design proposal (not just a UI surface), also run /.agents/product-review-checklist.md — problem defined before solution, alternatives compared, success metric + measurement infrastructure, review date, and a post-launch keep/iterate/kill decision.

Before pushing, run the checks in ReadMe.md under "Before you push" — CI runs more than the pre-commit hook does — and add a changeset if the diff touches a published package (see /.agents/architecture.md under "Publishing"). Never bypass the hook with --no-verify.

PRs are squash-merged, so the PR title becomes the commit on main. Write it as a Conventional Commit, type(scope): sentence (for example docs(agents): recommend contrast steps that meet WCAG AA), following git log --oneline on main. Branch commit messages are discarded at merge; keep them short.

When opening a PR, lead the description with the problem and goal (why / what) before the implementation (how) — see .github/pull_request_template.md. Reviewers, human and AI, evaluate against the stated goal; a description that's all how steers them toward syntax nitpicks instead of substance.

Everything under /.agents/ is also served at https://design.cypress.io/agents/ for consumer repos to fetch — same files, single source of truth. Cross-doc links in these files use absolute https://design.cypress.io/agents/... URLs (not relative paths) so that agents fetching one doc over HTTP can follow links to the rest — keep new links absolute. scripts/copy-agents.mjs also generates llms.txt at the domain root listing every served doc, so the whole tree is discoverable from https://design.cypress.io/llms.txt.

Read the full file on GitHub · 97 lines

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. 4d ago Changed · +13 lines · +651 tokens per session a17801cc97b0
  2. 5d ago First seen · 84 lines · 1,665 tokens per session scan A bb29077a42fd

Subscribe to this mod's changes

cypress-design AGENTS.md is an instructions file published in the GitHub repository cypress-io/cypress-design (13 stars, last pushed 3d ago), licensed MIT. It adds 2,316 tokens to every session, about $0.0093 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 2026-10-24.

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