Pick My Costume
com.pickmycostume/pick-my-costumepickmycostume.comstreamable-httpv1.0.1Scanned
Recommends Halloween costumes you can actually build, with step-by-step DIY build guides.
3 tools: 1 change things and 2 only read.
- Reads private data · 1
- Reads text others write · 0
- Can send data out · 0
- No findings
Tools listed without sign-in. Remote posture
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.
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.
3 tools
Changes things 1Claude Code: ask
pick_costumeRanks Halloween costume ideas from a fixed catalog of 169 against the supplied audience, interests, vibe, effort level, and owned materials, and returns the top 3 matches.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 Ranks Halloween costume ideas from a fixed catalog of 169 against the supplied audience, interests, vibe, effort level, and owned materials, and returns the top 3 matches. Each pick includes a why-line explaining the match, a thumbnail image, a link to its full build page, and the estimated time and effort. Owned items boost ranking: ideas whose materials are covered by the supplied owned items rank higher. Interest is the strongest ranking signal: ideas matching the stated interest outrank others.
Annotations the server declares
- title: Pick a costume
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
Only reads 2Show 2 read-only tools
get_build_guideReturns the step-by-step build instructions for one costume idea: the decision summary (time and effort level), the materials list with buy-vs-own tags, numbered build steps, safet…Reads private dataNo findings
Why it is in this group
- The name "get_build_guide" says "get": a word for reading.
What it can reach
- private-dataThe description's first sentence says "return" and "note": it reads notes.
Description, as the server wrote it Returns the step-by-step build instructions for one costume idea: the decision summary (time and effort level), the materials list with buy-vs-own tags, numbered build steps, safety notes, and common parent questions with answers. Accepts a costume idea id or a costume name.
Annotations the server declares
- title: Get a build guide
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
search_by_owningRanks the fixed costume catalog by how many of each idea's materials are covered by the supplied household items, so ideas needing the least extra shopping rank highest.No findings
Why it is in this group
- The name "search_by_owning" says "search": a word for reading.
Description, as the server wrote it Ranks the fixed costume catalog by how many of each idea's materials are covered by the supplied household items, so ideas needing the least extra shopping rank highest. Each result includes what the idea still needs, with each still-needed item tagged buy, own, either, or make. Common household basics are assumed present in every home; the exact assumed list is returned with each call. An optional audience narrows results to who the costume is for.
Annotations the server declares
- title: Search by owned items
- readOnlyHint: true
- destructiveHint: false
- 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 untrusted-input or outbound.
- Reads private data1
- 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.
Remote posture
What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.
Looked at Nov 5, 2026, 03:18 UTC, unchanged since Nov 5, 2026. No credentials were sent and no tool was called. What is looked at.
- Reachable
- yes
- HTTP status of an anonymous initialize
- 200
- tools/list served without credentials
- yes
- Tools that change things, listed without credentials
- 1
- Protocol version
- 2025-06-18
- WWW-Authenticate on 401
- not observed
- resource_metadata in WWW-Authenticate
- not observed
- RFC 9728 protected resource metadata
- not observed
- Authorization servers
- not observed
- Legacy HTTP+SSE transport
- no
- Dynamic client registration
- not observed
- Client ID metadata documents
- not observed
- WarnThe whole server
The endpoint served tools/list without credentials, and the list has 1 tool that changes things (1 write). Whether a call also works without credentials was not tested: tools are never called.
What this check looks forMatched text
https://mcp.pickmycostume.com/mcp: tools/list returned 3 tools to an anonymous client, including pick_costume (write)
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
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.
Install
Pinned to version 1.0.1. Values in angle brackets are yours to fill in.
claude mcp add --transport http pick-my-costume https://mcp.pickmycostume.com/mcpclaude mcp add --transport http pick-my-costume https://mcp.pickmycostume.com/mcpRun 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.
{
"permissions": {
"allow": [
"mcp__pick-my-costume__get_build_guide",
"mcp__pick-my-costume__search_by_owning"
],
"ask": [
"mcp__pick-my-costume__pick_costume"
],
"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 pick-my-costume. Review it before you use it.
Capability tags behind 1 rule
- mcp__pick-my-costume__get_build_guide private-data
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.pickmycostume/pick-my-costume/verify?hash=2ca266b9dced365237e9cc3f8dcffad245ca1ad7164d468ac2c8f13561d16dca" | jq -e '.changed == false'Pinned hash 2ca266b9dced, from Nov 5, 2026, 04:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/com.pickmycostume/pick-my-costume/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/com.pickmycostume/pick-my-costume)Source: MCP Registry · repository. Synced Nov 5, 2026, 04:18 UTC.