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io.github.gustavoatar/instafan

by gustavoatar · remote · no sign-in to list tools · v1.1.0 · published by GitHub user gustavoatar

Plan trips with friends: mood search, live briefs, top spots with photos, day-by-day itineraries.

Changes · 4
CompareRegistry entry

5 tools: 4 change things and 1 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 instafan https://instafan.app/mcp

Tools

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

5 tools

Changes things 4Claude Code: ask
  • build_itineraryBuild a day-by-day itinerary for a destination from its strongest real places.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
    Build a day-by-day itinerary for a destination from its strongest real places. Returns the plan plus links to run it as a group trip on Instafan.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • destination_briefA short brief on one destination: what it is like, typical weather now, official safety verdict.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
    A short brief on one destination: what it is like, typical weather now, official safety verdict. Use before or instead of a full itinerary.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • spot_photosReal photos of one spot — up to two shown inline plus direct photo links.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
    Real photos of one spot — up to two shown inline plus direct photo links. Name a specific place ("Belém Tower") or leave spot empty for a postcard of the destination itself.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • top_spotsThe strongest real places in a destination — top attractions by default, or a specific ask like "specialty coffee" or "rooftop bars".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
    The strongest real places in a destination — top attractions by default, or a specific ask like "specialty coffee" or "rooftop bars". Real Google-rated places, never invented.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
Only reads 1Claude Code: allow
  • find_destinationsSuggest 3-5 destinations for a trip mood or constraint set, e.g.No findings

    Why it is in this group

    • The name "find_destinations" says "find": a word for reading.
    Description, as the server wrote it
    Suggest 3-5 destinations for a trip mood or constraint set, e.g. "somewhere warm in November, food-first". Use when the traveller has not settled on a place yet.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: 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.

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 or untrusted-input or outbound.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0
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.

Install

Pinned to version 1.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http instafan https://instafan.app/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__instafan__find_destinations"
    ],
    "ask": [
      "mcp__instafan__destination_brief",
      "mcp__instafan__top_spots",
      "mcp__instafan__build_itinerary",
      "mcp__instafan__spot_photos"
    ],
    "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 instafan. Review it before you use it.