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shadcn-brief: Instructions file for Codex

AGENTS.md

shadcn-brief AGENTS.md is an instructions file for Codex, OpenCode from xiaojiou176-open/shadcn-brief. It costs 2,735 tokens per session, scanned A, original, MIT.

Repository instructions for ShadcnBrief, a local tool that turns plain-language interface requests into frontend files and checks the result. It targets Next.js, React, Tailwind, and shadcn projects.

In plain words
What is it for?
Use them when changing ShadcnBrief, generating frontend interfaces, navigating its services, or running its smoke tests and visual checks.
Why use it?
They explain the project structure, source-of-truth rules, and required quality checks so agents can work consistently and safely.

Instructions file for CodexOpenCode

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

This is xiaojiou176-open/shadcn-brief's own configuration. It tells Codex and OpenCode how to work on shadcn-brief 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 shadcn-brief configures →

not rated 1repo 3mo ago A scan 2,735 tokens original MIT
View source ↗ xiaojiou176-open/shadcn-brief xiaojiou176-open.github.io
Reuse

Borrowing it

Nothing to install: this file belongs to xiaojiou176-open/shadcn-brief. 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/xiaojiou176-open/shadcn-brief/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/xiaojiou176-open/shadcn-brief

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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Per session 2,735 This file is loaded in full into every session.
When invoked 2,735 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 $0.02735 $0.02735
Opus 5 $0.01367 $0.01367
Sonnet 5 $0.00547 $0.00547
Haiku 4.5 $0.00274 $0.00274

Measured 10d ago against content hash 5f23b15ee310, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

shadcn-brief 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 10d 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 · 319 lines

How it starts

The opening of the file, as written. The whole thing — 319 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS

This file is the shared AI-agent collaboration baseline for this repository. Its job is to keep delivery safe, verifiable, and low-drift across Codex, Claude Code, and other coding agents.

English is the canonical source of truth for repository governance and maintenance guidance. Localized entry documents may exist later, but they must not override this file.

1. Repository Positioning

  • Repository type: local stdio MCP server that packages ShadcnBrief capabilities
  • Primary outcome: turn natural-language UI requests into frontend files and run quality gates on the result
  • Technology target: Next.js App Router + React + Tailwind + shadcn
  • Model strategy: Gemini-only (see docs/environment-governance.md)
  • Default frontend target: apps/web
    • smoke:e2e
    • visual:qa
    • uiux:audit*
  • The repository no longer maintains a fixture/compat dual-track frontend entry

1.1 Module Navigation

  • Root baseline: AGENTS.md, CLAUDE.md
  • services/mcp-server/src/
    • services/mcp-server/src/next-smoke/AGENTS.md
    • services/mcp-server/src/providers/AGENTS.md
    • services/mcp-server/src/retrieval/AGENTS.md
    • services/mcp-server/src/tools/AGENTS.md
    • services/mcp-server/src/uiux/AGENTS.md
  • packages/
    • packages/contracts/AGENTS.md
    • packages/shared-runtime/AGENTS.md
    • packages/runtime-observability/AGENTS.md
  • tests/
    • tests/e2e/AGENTS.md
    • tests/visual-golden/AGENTS.md
  • tooling/
    • tooling/contracts/AGENTS.md
    • tooling/env-contract/AGENTS.md
    • tooling/shared/AGENTS.md
  • services/
    • services/gemini-sidecar/AGENTS.md
  • ops/
    • ops/AGENTS.md

2. Instruction Priority

Priority order:

  1. system/platform instructions
  2. root AGENTS.md
  3. nearest module-level guidance
  4. user task details

When rules conflict, prefer:

  1. safety
  2. rollbackability
  3. verifiability
  4. speed

3. 30-Minute Onboarding Path

npm install
cp .env.example .env
npx playwright install chromium firefox webkit
npm run build
npm start

Read the full file on GitHub · 319 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. 10d ago First seen · 319 lines · 2,735 tokens per session scan A 5f23b15ee310

Subscribe to this mod's changes

shadcn-brief AGENTS.md is an instructions file published in the GitHub repository xiaojiou176-open/shadcn-brief (1 stars, last pushed 3mo ago), licensed MIT. It adds 2,735 tokens to every session, about $0.0137 per session on Opus 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 2026-08-31.

CSS and stylingClaude CodeFrontendReactagent-toolsai-uicodexdesign-to-codedeveloper-tools
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