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sh.knowngood/knowngood

by knowngood.sh · remote · no sign-in to list tools · v1.9.0 · published by sh.knowngood

Search agent-ready sites or fetch one site's report; every capability probe-verified, dated.

Changes · 1
CompareRegistry entry

3 tools: 1 change things and 2 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http knowngood https://knowngood.sh/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

3 tools

Changes things 1Claude Code: ask
  • check_webmcpCheck a website LIVE for WebMCP tools, and where a browser is available whether any tool actually registers when the page runs.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.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Check a website LIVE for WebMCP tools, and where a browser is available whether any tool actually registers when the page runs. Returns one of: registered, declared_only, declared, not_declared, could_not_ask, or excluded when the site's robots.txt refuses AI input. could_not_ask is a distinct answer and is never reported as a no. Tools are listed, never called. Reads only the site named plus published population figures — it does not consult the index, and running it changes no ranking or listing.

    Annotations the server declares

    • title: Check a site for WebMCP tools
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
Only reads 2Claude Code: allow
  • find_capabilityFind websites where an agent can accomplish a task.No findings

    Why it is in this group

    • The name "find_capability" says "find": a word for reading.
    Description, as the server wrote it
    Find websites where an agent can accomplish a task. Returns probe-verified agent-readiness signals, unverified apparent actions read from page content, the verification tier, how each site was found (it declared agent access, probe discovery, or it was submitted), and a report URL to cite. Returns count:0 with an empty_note when nothing in the index matches — never a nearest guess.

    Annotations the server declares

    • title: Find agent-ready websites
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • get_site_reportFetch Known Good's dated verification report for one listed website: which capabilities were tested, which passed, when it was probed, what an agent can apparently do there, and ho…No findings

    Why it is in this group

    • The name "get_site_report" says "get": a word for reading.
    Description, as the server wrote it
    Fetch Known Good's dated verification report for one listed website: which capabilities were tested, which passed, when it was probed, what an agent can apparently do there, and how the site was found: whether it declared agent access, came from probe discovery, or was submitted. Answers "is this specific host agent-ready?". Returns found:false for anything not in the index — it never guesses a nearest match. Cite the report URL and its date.

    Annotations the server declares

    • title: Fetch one site's verification report
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false

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.

Install

Pinned to version 1.9.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http knowngood https://knowngood.sh/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__knowngood__find_capability",
      "mcp__knowngood__get_site_report"
    ],
    "ask": [
      "mcp__knowngood__check_webmcp"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as knowngood. Review it before you use it.