CatalogReady

Can AI shopping agents actually read your product page?

CatalogReady is the open-source Lighthouse for AI shopping. Point it at a product page and get a transparent 0–100 readiness score, the exact product data machines can and cannot read, unsupported marketing claims, and paste-ready fixes.

Offline · deterministic rules · no API key · never writes to your store.

Install the Chrome extension

CatalogReady — AI Readiness Score is now available in the Chrome Web Store. Audit any product page in one click, compare platform-specific readiness scores, inspect every deduction, and get actionable fixes.

Add CatalogReady to Chrome →

Related MCP server: merch-connector

The benchmark result

40 of 50 real product pages (80%) were not ready for AI shopping agents — even though every page was reachable and auditable.

The benchmark covers 50 different domains across fashion, electronics, home, beauty, and grocery. It uses one GET per page and the same deterministic audit as the CLI: no model, no synthetic data, and no points for generated fixes. See every score and the methodology →

Benchmark earns trust. The case makes it memorable. The scorecard makes it shareable.

A real skincare contrast: CeraVe Intensive Moisturizing Cream scored 16/100 with 4 high-severity findings. Another mainstream skincare page — The Ordinary Niacinamide 10% + Zinc 1% — scored 91/100 with no high-severity findings: a 75-point gap in machine-readable product identity and evidence.

Reproduce the full 50-page benchmark:

uv run python scripts/benchmark.py benchmark/urls.txt benchmark/BENCHMARK.md

The benchmark measures fetched static HTML, not product quality, popularity, or observed ranking in an AI answer.

See it in action

Audit a live product page from the CatalogReady browser extension, compare the platform-specific readiness scores, inspect every deduction, and generate evidence-backed fixes without writing to the storefront.

uvx --from catalogready-ai catalogready https://your-store.com/products/example

  Waterproof Commuter Shoe – Blue

  CatalogReady Score: 82/100 (ready)

  Product identity      16/20
  Offer completeness    20/20
  Structured data       20/20
  Decision evidence     14/15
  Media & variants       2/15
  Claim grounding       10/10

  0 critical · 2 recommended · 0 minor findings
  Full report: catalogready-report.html

The HTML report is a single self-contained file: score dial, per-pillar breakdown, every finding with a stable rule ID, the questions only the merchant can answer, a recommended Product JSON-LD block built strictly from evidence found on the page, and a downloadable PNG score card.

Why this exists

ChatGPT shopping, Google AI results, and Perplexity buy-flows read product pages with machines, not eyes. A page can look perfect to humans while being invisible or untrustworthy to an AI shopping agent: missing stable IDs, incomplete offers, absent Product JSON-LD, and marketing claims with no supporting evidence.

CatalogReady checks what the machines check — deterministically, locally, and with a score that survives scrutiny:

• Only your page earns points. Nothing CatalogReady generates contributes to the score.

• Blocking defects cap the score. Duplicate IDs, incomplete offers, missing structured data, or an unsupported high-risk claim hard-cap the number, no matter how complete everything else is.

• Every finding cites evidence and carries a rule ID you can grep for. docs/RULES.md documents every rule with its source — Google's merchant-listing requirements, OpenAI's Agentic Commerce feed spec, Bing's Copilot grounding guidelines, and the published crawler documentation of OpenAI, Perplexity, and Anthropic.

See docs/scoring-methodology.md for the full rubric and caps.

Quick start with ChatGPT, Claude, Gemini, or DeepSeek

Use CatalogReady with the chat app you already have open — no plugin, no account linking, no API key. The tool computes the real score; your chatbot explains it and plans the fixes.

Step 1 — install uv (once, skip if you have it):

# macOS / Linux
curl -LsSf https://astral.sh/uv/install.sh | sh

# Windows (PowerShell)
powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"

Step 2 — audit your product page (one command, replace the URL):

uvx --from catalogready-ai catalogready audit https://your-store.com/products/example --json > audit.json

This writes audit.json (the full result) and catalogready-report.html (a visual report you can open in a browser).

Step 3 — open your chatbox: chatgpt.com · claude.ai · gemini.google.com · chat.deepseek.com

Step 4 — copy this prompt into the chat:

I ran CatalogReady (github.com/PO-VINCENT/ai-shopping-audit), an
open-source auditor that scores product pages 0–100 for AI-shopping
readiness using deterministic rules. Below is the JSON result for my
product page. Act as my e-commerce consultant:
1. Explain the score, the pillar breakdown, and any caps in plain language.
2. Prioritize the findings into a fix list, most damaging first.
3. Show me the corrected Product JSON-LD using ONLY facts present in
   this JSON — do not invent product data.
4. Tell me which merchant questions I must answer and why they matter.
Here is the audit JSON:

Step 5 — paste the contents of audit.json right below the prompt and send. (Or attach audit.json as a file — ChatGPT, Claude, and Gemini all accept file uploads.)

Step 6 — keep the conversation going. Good follow-ups: "Rewrite my product title following the fix list" · "Explain rule GEO-PRODUCT-003" · "I fixed the JSON-LD — what should I verify after deploying?" (Re-run Step 2 after each fix to watch the score climb.)

Prefer your assistant to run the audit itself? (MCP)

Agentic assistants can call CatalogReady as a tool via its MCP server. Then just ask: "Fetch https://store.example/products/x and run the CatalogReady agent on the HTML — summarize the score and the top fixes." A matching Agent Skill teaches Claude Code, Codex CLI, and any other agentskills.io adopter when to reach for the tools and which guardrails apply — install snippets in QUICKSTART-AI-ASSISTANTS.md.

Claude Code — one line:

claude mcp add catalogready -- uvx --from catalogready-ai catalogready-mcp

Add to ~/.codex/config.toml (or a trusted project's .codex/config.toml):

[mcp_servers.catalogready]
command = "uvx"
args = ["--from", "catalogready-ai", "catalogready-mcp"]
startup_timeout_sec = 20
tool_timeout_sec = 120

ChatGPT's web/desktop connectors expect remote MCP servers; for a local audit tool, Codex CLI is the supported path today.

Add to claude_desktop_config.json → mcpServers:

{
  "mcpServers": {
    "catalogready": {
      "command": "uvx",
      "args": ["--from", "catalogready-ai", "catalogready-mcp"]
    }
  }
}

Add to .gemini/settings.json (this repo ships one):

{
  "mcpServers": {
    "catalogready": {
      "command": "uvx",
      "args": ["--from", "catalogready-ai", "catalogready-mcp"],
      "trust": false
    }
  }
}

Gemini Enterprise can use the A2A agent card instead — see docs/INTEROPERABILITY.md.

DeepSeek has no MCP client, so the integration runs the other way: use DeepSeek as the optional model powering CatalogReady's chat answers and listing drafts:

# .env next to where you run the server
DEEPSEEK_API_KEY=…
DEEPSEEK_MODEL=deepseek-chat

Then pick DeepSeek in the dashboard/extension, or --provider deepseek. The same pattern works for OpenAI, Gemini, and Claude keys — see docs/BYO-KEYS.md.

The full guide — including Copilot (VS Code agent mode) and each vendor as the BYO model inside CatalogReady — is docs/QUICKSTART-AI-ASSISTANTS.md.

Install and run

# one-off (recommended for a first try)
uvx --from catalogready-ai catalogready https://your-store.com/products/example

# or as a checkout
uv sync
uv run catalogready audit https://your-store.com/products/example

# fully offline: audit a saved page instead of fetching it
uv run catalogready audit https://your-store.com/products/example saved-page.html

# machine-readable output
uv run catalogready audit <url> [saved.html] --json

# also fetch product images to check marketplace size minimums (max 3 requests)
uv run catalogready audit <url> --online

Fetching is exactly one HTTP GET for the page you name. The audit engine itself makes no network calls — the test suite runs with networking disabled.

Try it on the bundled examples without touching the network:

uv run catalogready audit https://example.com/products/cr-001 examples/demo-store/index.html
uv run catalogready catalog examples/messy-apparel.csv   # scores 51/100, and shows exactly why

What gets checked

When facts are missing, CatalogReady asks instead of inventing: the report lists the questions only the merchant can answer, and --answers merchant-answers.json resumes the audit with verified values.

Interactive agent session

catalogready chat opens a Claude Code-style terminal session over the bounded agent — audit, ask, answer, fix:

catalogready> /audit https://your-store.com/products/example
● inspect_product_page — Extracted 3 evidence items ...
● audit_product — Measured readiness at 1/100 and produced 14 findings.

  CatalogReady Score: 1/100 (needs_work)
  ...
  [blocking] price: What is the current verified product price?

catalogready> why is offer completeness low?
Offer completeness: 0/20
  ✗ price
  ✗ currency
  ...

catalogready> /answers sku=CR-100 price=49.00 currency=AUD availability=in_stock
catalogready> /draft
Isolated preview validation: 1 → 29 (+28), status validated.

catalogready> /report

The agent pauses for facts it cannot verify instead of inventing them; /answers resumes it. Free-text questions are answered deterministically from the audit result; set /provider openai (or gemini, claude, deepseek — keys via server environment variables only) for open-ended, model-answered questions grounded strictly in the audit JSON.

Interactive dashboard

One command serves the web UI and the local API on the same port and opens your browser:

uvx --from catalogready-ai catalogready dashboard   # or: uv run catalogready dashboard

Enter a product URL and press Audit — the local server fetches the page for you (one request). Or paste the HTML / load the built-in good/bad demos to stay fully offline. Every audit produces a plain-language summary conclusion, auto-drafted fix suggestions with an isolated preview validation, expandable per-pillar score explanations, inline merchant questions, a paste-ready JSON-LD patch, an "Ask the agent" chat window, and a downloadable HTML report. The UI follows your browser language (English / 中文, switchable in the header). Everything runs locally; the page never asks for API keys.

Why the extension and the URL fetch can score differently: the extension audits the rendered page (what a browsing agent sees); the URL fetch audits the static HTML (what non-rendering crawlers like OAI-SearchBot and PerplexityBot receive). Both views are labeled in the UI, and the gap between them measures your page's JavaScript dependence — content that only exists after rendering is invisible to most AI crawlers, which is why Google recommends putting Product data in the initial HTML.

How it compares

CatalogReady measures whether your product page is citable by an AI shopping agent — an input you control — not whether it happened to be cited, an outcome that changes on every run. That axis is what separates it from each neighbouring category:

Representative tools per column — Schema validators: Google Rich Results Test, google/schemarama, spatie/schema-org; GEO/AEO visibility: Profound, Peec.ai, Otterly, Adobe LLM Optimizer; Feed & PIM: Feedonomics, DataFeedWatch, Salsify, Akeneo; AI copy generators: Describely, Hypotenuse, Jasper; SEO suites: Screaming Frog, Semrush, Ahrefs.

No tool combines all seven rows: schema validators own row 3 only; GEO/AEO platforms measure the outcome this score is the input for; feed & PIM tools work the feed instead of the public page; generators create the very claims CatalogReady audits. The transactability row has no competition yet — the protocols it checks against (UCP, ACP checkout) are only months old.

Bring your own model key (optional)

Everything above runs with no key. To enable model-assisted planning, chat answers, and listing drafts, put a provider key in the server's .env — see docs/BYO-KEYS.md. Keys never enter the dashboard, the extension, or tool arguments.

Also in the box

The audit engine is a vendor-neutral service with several thin surfaces. These are secondary to the page audit and documented in docs/ROADMAP.md:

• catalogready catalog feed.csv — CSV catalog audit with the same deduction-and-cap scoring.

• catalogready-api — HTTP server with OpenAPI docs and an A2A agent card.

• A Chromium extension (browser-extension-standalone/, on the Chrome Web Store) — one click on any product page runs the deterministic audit fully in-browser: score, per-platform views, findings, merchant questions, and a rendered-vs-crawler comparison. No server needed; an optional local server adds AI fix drafts. Works on bot-protected storefronts because it reads what your browser rendered.

• An Agent Skill (skills/catalogready/) auto-discovered by Claude Code and Codex CLI inside this repo, and installable globally — see docs/QUICKSTART-AI-ASSISTANTS.md.

• Optional model-assisted listing drafts (OpenAI, Gemini, Claude, DeepSeek) with bring-your-own keys via server environment variables — never in tool arguments or browser storage — and deterministic claim evaluation with publishing safety caps.

Guarantees

• The deterministic core requires no API key and makes no network calls.

• CatalogReady never writes to a storefront, feed, or merchant system.

• It never invents product attributes, citations, or rankings.

• A readiness score is not a promise of ranking or citation by any AI system — and any tool that promises that is guessing.

Contributing

Rule proposals are the most valuable contribution — see CONTRIBUTING.md and the issue templates. Run the suite with python -m unittest discover -s tests -v; it must pass offline.

Architecture and module design: docs/repository-design.md · Rules with sources: docs/RULES.md · Metrics & landscape: docs/METRICS.md · Scoring: docs/scoring-methodology.md · Interoperability: docs/INTEROPERABILITY.md · Roadmap: docs/ROADMAP.md · Browser extension privacy: docs/PRIVACY.md

Contact

Built by Vincent Po Li. Questions, fix help, partnership, or feedback:

• Issues / discussions: github.com/PO-VINCENT/ai-shopping-audit

• Email: vincentli802@hotmail.com

• LinkedIn: vincent-po-li

• X: @Vincent_Po_Li

• 小红书 (Xiaohongshu): vincent726217

Licensed under Apache-2.0.