llms-txt-implementation

name	llms-txt-implementation
description	Use when implementing the emerging llms.txt standard. llms.txt = website's instructions for LLMs.

llms.txt Implementation

llms.txt = explicit instructions for LLMs (like robots.txt for crawlers). Place at root. Specify: what site is, key pages, content priorities.

llms.txt format

Place at https://yoursite.com/llms.txt. Plain text or Markdown:

# CardPrepAI

AI-powered trading card pre-grading service. Pre-grade Pokemon, sports cards, MTG, Yu-Gi-Oh, and other TCGs before submission.

## What we do
- Pre-grading via computer vision
- Submission strategy (PSA vs BGS vs CGC vs SGC vs TAG)
- Crossover arbitrage analysis
- Pop report and pricing analytics

## Key pages
- /grading: service overview
- /pricing: tier pricing
- /methodology: how AI grading works
- /tools: 6 AI tools (Sniper, Concierge, Trade, Sentry, Break, Listing)

## Authority
- Built on 34-part Knowledge Base research
- Trained on 14,000+ graded comp examples
- Used by serious collectors and dealers

What to include

1. Brand identity (1-2 sentences)
2. Core offerings
3. Key page links (paths or full URLs)
4. Authority signals (data, customer base)
5. Content categories (so LLMs can route queries)
6. Brand voice notes
7. Update frequency

When LLMs use llms.txt

Emerging standard (2024-2026). Some LLMs already check it. Best practice to include. No downside to having it — only upside if LLMs adopt the standard.

Where this fits in the X3 empire

llms.txt implemented on CardPrepAI.