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UND Assay

com.undassay/und-assayundassay.comstreamable-httpv0.12.0Scanned

Evidence on MCP servers before you install: publisher, source, provenance, advisories, changes.

8 tools: 1 change things and 7 only read.

Tools: 0 delete, 0 irreversible, 1 write, 7 read.
  • Reads private data · 2
  • Reads text others write · 3
  • Can send data out · 0
  • 2 findings

Anlyon alternative

1 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.

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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 1Claude Code: ask
  • check_before_installEvidence summary for an MCP server before you install or connect it: publisher identity level, provenance, known vulnerabilities, install scripts, maintenance, open warnings, check…1 finding

    Why it is in this group

    • The name "check_before_install" says "install": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "check_before_install" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "check_before_install" says "install": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Evidence summary for an MCP server before you install or connect it: publisher identity level, provenance, known vulnerabilities, install scripts, maintenance, open warnings, checks that could not run, and recent changes. No warnings is NOT a safety guarantee.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • title: Check a tool before installing it
Only reads 7Show 7 read-only tools
  • get_changesMetadata changes between consecutive published versions: new network hosts, replaced or added artifact sources, newly requested credentials.Reads private data1 finding

    Why it is in this group

    • The name "get_changes" says "get": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "credential": it reads secrets.

    Findings

    • Info

      The description mentions "credentials".

      Matched text

      description: "...added artifact sources, newly requested credentials."

      What this check looks for
    Description, as the server wrote it
    Metadata changes between consecutive published versions: new network hosts, replaced or added artifact sources, newly requested credentials.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • title: What changed between versions
  • get_evidenceA single assertion of a tool (by field name) with the evidence records behind it: URL, fetch time, SHA-256.Reads text others writeNo findings

    Why it is in this group

    • The name "get_evidence" says "get": a word for reading.

    What it can reach

    • untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
    Description, as the server wrote it
    A single assertion of a tool (by field name) with the evidence records behind it: URL, fetch time, SHA-256.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • title: One assertion with its evidence
  • get_publisherHow a publisher is identified across ecosystems (MCP namespace, domain, GitHub, packages) and the state of each link.No findings

    Why it is in this group

    • The name "get_publisher" says "get": a word for reading.
    Description, as the server wrote it
    How a publisher is identified across ecosystems (MCP namespace, domain, GitHub, packages) and the state of each link.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • title: Publisher identity
  • get_setupOne stable answer (schema_version 1) for connecting an MCP server: its validated remote URL and transport, packages, copy-paste setup for Claude Code and JSON configs, warnings by …Reads text others writeNo findings

    Why it is in this group

    • The name "get_setup" says "get": a word for reading.

    What it can reach

    • untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
    Description, as the server wrote it
    One stable answer (schema_version 1) for connecting an MCP server: its validated remote URL and transport, packages, copy-paste setup for Claude Code and JSON configs, warnings by severity, checks that could not run, and contradicted claims. auth is null until Assay has checked the sign-in metadata of the server. Never a safety rating.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • title: How to connect a tool
  • get_toolEvery assertion for a tool with its state (VERIFIED, CLAIMED, CONTRADICTED, STALE, UNKNOWN), reason, check and evidence records.No findings

    Why it is in this group

    • The name "get_tool" says "get": a word for reading.
    Description, as the server wrote it
    Every assertion for a tool with its state (VERIFIED, CLAIMED, CONTRADICTED, STALE, UNKNOWN), reason, check and evidence records.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • title: Full evidence for a tool
  • resolve_identifierResolve an MCP server name, catalog id or GitHub repository URL to the real registry entry.Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "resolve_identifier" says "resolve": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "resolve" and "repository": it reads repositories.
    • untrusted-inputThe description's first sentence says "resolve" and "url": it reads web pages, which anyone can write.
    Description, as the server wrote it
    Resolve an MCP server name, catalog id or GitHub repository URL to the real registry entry. If there is no exact match, returns the closest real names so look-alikes and invented names can be caught. No account needed.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • title: Does this tool really exist?
  • search_toolsSearch cataloged MCP servers by keywords.No findings

    Why it is in this group

    • The name "search_tools" says "search": a word for reading.
    Description, as the server wrote it
    Search cataloged MCP servers by keywords. Returns classification (verified_publisher = the publisher proved control of a domain or verified GitHub org, NOT that a company named in the tool made it / community / not_analyzed), identity level and warning counts.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • title: Search tools

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 outbound.

Reads private data2
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write3
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
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.

1 warn1 info
  • Warncheck_before_install

    The server marks "check_before_install" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "check_before_install" says "install": a word for a change.

    What this check looks for
  • Infoget_changes

    The description mentions "credentials".

    Matched text

    description: "...added artifact sources, newly requested credentials."

    What this check looks for

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.

All changes to this server

Install

Pinned to version 0.12.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http und-assay https://undassay.com/mcp
claude mcp add --transport http und-assay https://undassay.com/mcp

Run 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.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__und-assay__get_setup",
      "mcp__und-assay__resolve_identifier",
      "mcp__und-assay__search_tools",
      "mcp__und-assay__get_tool",
      "mcp__und-assay__get_publisher",
      "mcp__und-assay__get_changes",
      "mcp__und-assay__get_evidence"
    ],
    "ask": [
      "mcp__und-assay__check_before_install"
    ],
    "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 und-assay. Review it before you use it.

Capability tags behind 4 rules
  • mcp__und-assay__get_setup untrusted-input
  • mcp__und-assay__resolve_identifier private-data, untrusted-input
  • mcp__und-assay__get_changes private-data
  • mcp__und-assay__get_evidence untrusted-input

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/com.undassay/und-assay/verify?hash=11cc8c92e825192d121ae010c1250d7a210a84c5666fdcbcb0cba8272f2551de" | jq -e '.changed == false'

Pinned hash 11cc8c92e825, from Oct 31, 2026, 17:18 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.undassay/und-assay/changes.xml

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Badge

anlyon.dev badge for com.undassay/und-assay
[![anlyon.dev](https://anlyon.dev/badge/com.undassay/und-assay.svg)](https://anlyon.dev/servers/com.undassay/und-assay)

Source: MCP Registry. Synced Oct 31, 2026, 17:17 UTC.