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Agent Preflight

by preflight.lorensaisolutions.com · remote · no sign-in to list tools · v1.1.0 · published by com.lorensaisolutions.preflight

Six paid URL-intelligence tools for autonomous agents and agent swarms.

Changes · 7
CompareRegistry entry

7 tools: 7 change things.

Scanned Oct 21, 2026

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

claude mcp add --transport http agent-preflight https://preflight.lorensaisolutions.com/mcp

Findings

Matches of fixed checks, with the text they matched.

2 warn
  • Warnchange_check

    The server marks "change_check" as not read-only (readOnlyHint: false), and its words say it reads.

    Matched text

    annotations: {"readOnlyHint":false,"destructiveHint":false,"openWorldHint":true}; The description's first verb is "fetch": a word for reading.

    What this check looks for
  • Warnbatch_preflight

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

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The description's first verb is "run": a word for a change.

    What this check looks for

Tools

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

7 tools

Changes things 7Claude Code: ask
  • access_checkLoss-leader URL access, login, and CAPTCHA check.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
    Loss-leader URL access, login, and CAPTCHA check. Price: $0.05 USDC. Example: GET /v1/access-check?url=https://example.com

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • api_discoveryDiscover OpenAPI, Swagger, GraphQL, MCP, and API documentation signals.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
    Discover OpenAPI, Swagger, GraphQL, MCP, and API documentation signals. Price: $0.10 USDC. Example: GET /v1/api-discovery?url=https://example.com

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • batch_preflightRun standard preflight against as many as 10 URLs in one paid request.1 finding

    Why it is in this group

    • The description's first verb is "run": 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 "batch_preflight" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The description's first verb is "run": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Run standard preflight against as many as 10 URLs in one paid request. Price: $0.35 USDC. Example: POST /v1/batch-preflight

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • change_checkFetch a URL and compare its content fingerprint with the prior KV observation.1 finding

    Why it is in this group

    • The description's first verb is "fetch": a word for reading.
    • The server marks it as not read-only (readOnlyHint: false).

    Findings

    • Warn

      The server marks "change_check" as not read-only (readOnlyHint: false), and its words say it reads.

      Matched text

      annotations: {"readOnlyHint":false,"destructiveHint":false,"openWorldHint":true}; The description's first verb is "fetch": a word for reading.

      What this check looks for
    Description, as the server wrote it
    Fetch a URL and compare its content fingerprint with the prior KV observation. Price: $0.10 USDC. Example: POST /v1/change-check

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • openWorldHint: true
  • preflightSingle-fetch URL intelligence, access checks, commerce signals, and risk.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
    Single-fetch URL intelligence, access checks, commerce signals, and risk. Price: $0.15 USDC. Example: GET /v1/preflight?url=https://example.com&intent=research

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • premium_preflightTriple-user-agent intelligence with five-hop redirect evidence, retries, access controls, commerce risk, can_proceed, and proof.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
    Triple-user-agent intelligence with five-hop redirect evidence, retries, access controls, commerce risk, can_proceed, and proof. Price: $0.75 USDC. Example: GET /v1/premium-preflight?url=https://example.com

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • product_intelExtract product price, availability, add-to-cart, and commerce risk signals.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
    Extract product price, availability, add-to-cart, and commerce risk signals. Price: $0.15 USDC. Example: GET /v1/product-intel?url=https://example.com

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: 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 1.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http agent-preflight https://preflight.lorensaisolutions.com/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": [],
    "ask": [
      "mcp__agent-preflight__access_check",
      "mcp__agent-preflight__api_discovery",
      "mcp__agent-preflight__change_check",
      "mcp__agent-preflight__preflight",
      "mcp__agent-preflight__product_intel",
      "mcp__agent-preflight__batch_preflight",
      "mcp__agent-preflight__premium_preflight"
    ],
    "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 agent-preflight. Review it before you use it.