Rat Radar
tech.ratlabs/rat-radarratlabs.techstreamable-httpv1.4.0Scanned
Ask before you scrape: is a site open, may I fetch this URL, and how do I extract a page. No key.
8 tools: 4 change things and 4 only read.
- Reads private data · 0
- Reads text others write · 2
- Can send data out · 3
- No findings
Anlyon alternative
4 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
8 tools
Changes things 4Claude Code: ask
check_siteCan I scrape this site, and how?Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
What it can reach
- untrusted-inputThe description's first sentence says "scrape": it reads web pages, which anyone can write.
Description, as the server wrote it Can I scrape this site, and how? Returns a verdict (open, guarded, hostile, blocked), a hostility score, a recommended approach with steps and risks, bot protections, robots.txt and AI-crawler policy, machine-readable surfaces (sitemap, llms.txt, JSON-LD), and eu_ai_training: the signals the EDPB draft Guidelines 03/2026 on web scraping for generative AI count against collecting personal data (robots.txt, ai.txt, CAPTCHAs, login walls), as none, some or strong. Signals, not legal advice. Uses a weekly-probed dataset of several hundred sites; for any other domain it probes live from a datacenter IP.
summaryHeadline numbers across the dataset: verdict mix, how many sites block AI crawlers (and which), protection vendors, by category and country.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Headline numbers across the dataset: verdict mix, how many sites block AI crawlers (and which), protection vendors, by category and country.
xray_diagramDraw a page's anatomy as an Excalidraw diagram: its regions, the ranked ways to get its data, proof rows, the best route and what the page is made of.Can send data outNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
What it can reach
- outboundThe input takes a URL (input.url): a request to a URL can carry data to whoever runs it.
Description, as the server wrote it Draw a page's anatomy as an Excalidraw diagram: its regions, the ranked ways to get its data, proof rows, the best route and what the page is made of. Returns a download link for the .excalidraw file (give it to the user; it opens at excalidraw.com or in Obsidian) and a file_name. With include_scene, also the scene itself (a few hundred KB).
xray_pageHow do I extract the data from THIS page?Can send data outNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
What it can reach
- outboundThe input takes a URL (input.url): a request to a URL can carry data to whoever runs it.
Description, as the server wrote it How do I extract the data from THIS page? Fetches one public page and returns a ranked extraction plan: embedded JSON, JSON-LD, repeated records with CSS selectors and field names, tables, feeds, hidden API calls. Each source has a reliability, proof rows pulled from the real page, and the plan notes pagination and blockers. Set include_code for a starter Python script. Works on the raw HTML only, so JavaScript-built pages report a blocker instead of data. Use check_site first to learn whether the site allows scraping at all.
Only reads 4Show 4 read-only tools
can_fetchDoes robots.txt allow fetching this exact URL?Reads text others writeCan send data outNo findings
Why it is in this group
- The name "can_fetch" says "fetch": a word for reading.
What it can reach
- untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
- untrusted-inputThe input takes a URL (input.url), and the tool reads it: it reads web pages, which anyone can write.
- outboundThe input takes a URL (input.url): a request to a URL can carry data to whoever runs it.
Claude Code: ask, because it is tagged outbound.
Description, as the server wrote it Does robots.txt allow fetching this exact URL? Fetches the live robots.txt and applies the longest-match rule for a user agent (default: * plus GPTBot, ClaudeBot, Google-Extended, CCBot, PerplexityBot). Returns allowed or not, the rule that decided it, and any crawl delay. A courtesy check, not a legal opinion.
get_playbookWhat should I build with this site, and how?No findings
Why it is in this group
- The name "get_playbook" says "get": a word for reading.
Description, as the server wrote it What should I build with this site, and how? Give a domain and, optionally, a goal in plain words (for example "price alerts", "sales leads", "new jobs", "change log", "knowledge base"). Returns the best-matching workflow for that site: what it does, its cadence, a trigger, collect, shape, store, act pipeline, the fields to keep, and step-by-step build recipes for n8n, Make, Zapier and Apify (or just one with platform). Workflows marked found_on_this_site come from what the weekly probe saw on the site itself. Also returns the other workflows, the golden data, and the guardrails.
list_sitesList the sites in the dataset, optionally by category or verdict.No findings
Why it is in this group
- The name "list_sites" says "list": a word for reading.
Description, as the server wrote it List the sites in the dataset, optionally by category or verdict. Use it to find easy targets or to see what is covered.
search_sitesFind sites in the dataset by a word: a name, host, category (jobs, shop, news, gov), country or verdict.No findings
Why it is in this group
- The name "search_sites" says "search": a word for reading.
Description, as the server wrote it Find sites in the dataset by a word: a name, host, category (jobs, shop, news, gov), country or verdict. Use it to discover what is covered before calling check_site.
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write2
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out3
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.4.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http rat-radar https://rat-radar.github-a18.workers.dev/mcpclaude mcp add --transport http rat-radar https://rat-radar.github-a18.workers.dev/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__rat-radar__get_playbook",
"mcp__rat-radar__list_sites",
"mcp__rat-radar__search_sites"
],
"ask": [
"mcp__rat-radar__check_site",
"mcp__rat-radar__xray_page",
"mcp__rat-radar__xray_diagram",
"mcp__rat-radar__can_fetch",
"mcp__rat-radar__summary"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as rat-radar. Review it before you use it.
Capability tags behind 4 rules
- mcp__rat-radar__check_site untrusted-input
- mcp__rat-radar__xray_page outbound
- mcp__rat-radar__xray_diagram outbound
- mcp__rat-radar__can_fetch untrusted-input, outbound
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/tech.ratlabs/rat-radar/verify?hash=02cbfe759df2343d64eb6684fa2554e21ea5455b0d3bd296614cbd6ddd27e91b" | jq -e '.changed == false'Pinned hash 02cbfe759df2, from Oct 28, 2026, 22:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/tech.ratlabs/rat-radar/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/tech.ratlabs/rat-radar)Source: MCP Registry. Synced Oct 28, 2026, 22:18 UTC.