Catch of a Lifetime

com.catchofalifetime/catch-of-a-lifetimecatchofalifetime.comstreamable-httpv0.2.0Scanned 3 hours ago

Plan outdoor outings with live conditions, and draft and promote outings as a host.

8 tools: 5 change things and 3 only read.

Reads private data · 0
Reads text others write · 3
Can send data out · 0
1 finding

Anlyon alternative

5 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.

Import an OpenAPI spec →

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 5Creates or changes something that can be changed back.Claude Code: ask

conditions_checkShould this outing go ahead?Reads text others writeNo 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.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Should this outing go ahead? Returns GO, CAUTION or NO-GO with reasons, from the National Weather Service forecast and active alerts, live USGS river gauges (flow and 6-hour trend) for paddling, rafting, fishing and swimming, NOAA tide times on the coast, and sun and moon times. Works in launch metros or anywhere in the US with latitude and longitude.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- openWorldHint: true
draft_outingFor hosts: turns a plan into a filled-in Catch of a Lifetime outing.Reads text others writeNo 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.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
For hosts: turns a plan into a filled-in Catch of a Lifetime outing. Returns a link that opens the app's Plan an outing screen with the name, time, length, meeting spot, group size, notes and weekly repeat already set, plus a conditions check when it's within a week. Nothing is posted until the host taps Post. Times accept "9am", "6:30 pm", "sunrise", "sunset" or "full dark".
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- openWorldHint: true
move_from_meetupFor organizers leaving Meetup: paste the group's name, its description and its schedule (one event per line) and get a 4-week plan.1 finding
Why it is in this group
- The name "move_from_meetup" says "move": 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 "move_from_meetup" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"idempotentHint":true,"openWorldHint":false}; The name "move_from_meetup" says "move": a word for a change.
  What this check looks for
Description, as the server wrote it
For organizers leaving Meetup: paste the group's name, its description and its schedule (one event per line) and get a 4-week plan. Includes a ready Tribe description, one-tap weekly outing drafts for each recurring event, and an announcement to post to members. Uses only the text provided; it never accesses Meetup or member data.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- openWorldHint: false
outing_promo_kitFor hosts: everything needed to fill an outing.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
For hosts: everything needed to fill an outing. Ready-to-paste text for iMessage and WhatsApp, an Instagram or Facebook caption with hashtags, a Facebook group or Nextdoor post, story text, a day-before reminder, a morning-of message, an after-outing recap, and a 5-slide carousel outline.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- openWorldHint: false
plan_outdoor_outingPlans a day outside in a US launch metro: National Weather Service forecast, a conditions read for the specific activity (rain, storms, wind, heat, clouds), sunrise/sunset/full-dar…Reads text others writeNo 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.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Plans a day outside in a US launch metro: National Weather Service forecast, a conditions read for the specific activity (rain, storms, wind, heat, clouds), sunrise/sunset/full-dark times, moon phase, practical tips, and local context. Good for stargazing, fishing, hiking, birding, bouldering, paddling, hunting, cold-water swimming, disc golf and more.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- openWorldHint: true

Only reads 3Looks things up and changes nothing.Show 3 read-only tools

compare_appsSourced side-by-side comparison of Catch of a Lifetime with another app (Tinder, Bumble, Hinge, Meetup, Strava, AllTrails, Timeleft, 222, Grass, BunchUps), including where the othe…No findings
Why it is in this group
- The name "compare_apps" says "compare": a word for reading.
Description, as the server wrote it
Sourced side-by-side comparison of Catch of a Lifetime with another app (Tinder, Bumble, Hinge, Meetup, Strava, AllTrails, Timeleft, 222, Grass, BunchUps), including where the other app is the better choice. Omit competitor to list every comparison.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- openWorldHint: false
get_waitlist_linkReturns the link to join the Catch of a Lifetime waitlist (free for founding members), optionally crediting a friend's referral code.No findings
Why it is in this group
- The name "get_waitlist_link" says "get": a word for reading.
Description, as the server wrote it
Returns the link to join the Catch of a Lifetime waitlist (free for founding members), optionally crediting a friend's referral code. The person signs up themselves on the page; this tool does not collect email addresses.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- openWorldHint: false
metro_launch_statusLive Catch of a Lifetime waitlist progress: how many people have joined in a metro versus the number needed to open it there.No findings
Why it is in this group
- The name "metro_launch_status" says "status": a word for reading.
Description, as the server wrote it
Live Catch of a Lifetime waitlist progress: how many people have joined in a metro versus the number needed to open it there. Omit metro for all tracked metros.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- 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.

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 outbound.

Reads private data0: 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.; conditions_check
draft_outing
plan_outdoor_outing
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 warn

Warnmove_from_meetup
The server marks "move_from_meetup" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"idempotentHint":true,"openWorldHint":false}; The name "move_from_meetup" says "move": a word for a change.
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 0.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http catch-of-a-lifetime https://catchofalifetime.com/mcp

claude mcp add --transport http catch-of-a-lifetime https://catchofalifetime.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__catch-of-a-lifetime__metro_launch_status",
      "mcp__catch-of-a-lifetime__compare_apps",
      "mcp__catch-of-a-lifetime__get_waitlist_link"
    ],
    "ask": [
      "mcp__catch-of-a-lifetime__plan_outdoor_outing",
      "mcp__catch-of-a-lifetime__conditions_check",
      "mcp__catch-of-a-lifetime__draft_outing",
      "mcp__catch-of-a-lifetime__outing_promo_kit",
      "mcp__catch-of-a-lifetime__move_from_meetup"
    ],
    "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 catch-of-a-lifetime. Review it before you use it.

Capability tags behind 3 rules

mcp__catch-of-a-lifetime__plan_outdoor_outing untrusted-input
mcp__catch-of-a-lifetime__conditions_check untrusted-input
mcp__catch-of-a-lifetime__draft_outing untrusted-input

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.catchofalifetime/catch-of-a-lifetime/verify?hash=fc6cb5652ad3cc4411ccecafbb2d20eb29fc39ba84b30ef01943f51196ca0ff3" | jq -e '.changed == false'

Pinned hash fc6cb5652ad3, from Nov 2, 2026, 22:17 UTC.

Watch

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

https://anlyon.dev/servers/com.catchofalifetime/catch-of-a-lifetime/changes.xml

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Badge

[![anlyon.dev](https://anlyon.dev/badge/com.catchofalifetime/catch-of-a-lifetime.svg)](https://anlyon.dev/servers/com.catchofalifetime/catch-of-a-lifetime)

Source: MCP Registry. Synced Nov 2, 2026, 23:17 UTC.