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NAIF Gravity Diagnostic — Free MCP/API/Webhook Triage

by naifgravity.com · remote · no sign-in to list tools · v1.0.0 · published by com.naifgravity

Free MCP, API auth, webhook and schema diagnostics with bounded checks and safe quote routing.

Changes · 4
CompareRegistry entry

4 tools: 4 change things.

Scanned Oct 21, 2026

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

claude mcp add --transport http diagnostic https://naifgravity.com/mcp/diagnostic

Findings

Matches of fixed checks, with the text they matched.

1 info

Tools

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

4 tools

Changes things 4Claude Code: ask
  • diagnose_api_auth_401Diagnose a sanitized HTTP 401 authentication failure without accepting credentials or contacting the target endpoint.1 finding

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.

    Findings

    • Info

      The description mentions "credentials".

      Matched text

      description: "...uthentication failure without accepting credentials or contacting the target endpoint."

      What this check looks for
    Description, as the server wrote it
    Diagnose a sanitized HTTP 401 authentication failure without accepting credentials or contacting the target endpoint.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • diagnose_json_schema_failureDiagnose a bounded JSON Schema or MCP input-schema type mismatch using only sanitized paths and types; no raw payload is required.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
    Diagnose a bounded JSON Schema or MCP input-schema type mismatch using only sanitized paths and types; no raw payload is required.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • diagnose_mcp_failureDiagnose sanitized MCP initialize, discovery, transport, capability and tool-schema failures.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
    Diagnose sanitized MCP initialize, discovery, transport, capability and tool-schema failures. Returns bounded free checks and never performs a repair or payment.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • diagnose_webhook_signatureDiagnose a sanitized webhook signature/delivery failure without accepting the raw payload, signature value or signing secret.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
    Diagnose a sanitized webhook signature/delivery failure without accepting the raw payload, signature value or signing secret.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true

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 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http diagnostic https://naifgravity.com/mcp/diagnostic

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": [],
    "ask": [
      "mcp__diagnostic__diagnose_mcp_failure",
      "mcp__diagnostic__diagnose_api_auth_401",
      "mcp__diagnostic__diagnose_webhook_signature",
      "mcp__diagnostic__diagnose_json_schema_failure"
    ],
    "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 diagnostic. Review it before you use it.