Vibresia

com.vibresia/music-visualizervibresia.comstreamable-httpv1.1.0Scanned 4 hours ago

Music visualiser (visualizer): write live GLSL music visualisations, shared as links that play.

8 tools: 4 change things and 4 only read.

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

Anlyon alternative

4 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 4Creates or changes something that can be changed back.Claude Code: ask

create_vibescapeUse this when somebody wants a music visualiser or music visualisation (visualizer, visualization, musicviz, audio-reactive visuals): it writes a GLSL vibescape and returns a live …Reads text others writeNo findings
Why it is in this group
- The name "create_vibescape" says "create": a word for a change.
- The input takes a statement or command to run (input.code), which can change anything it can reach.
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
Use this when somebody wants a music visualiser or music visualisation (visualizer, visualization, musicviz, audio-reactive visuals): it writes a GLSL vibescape and returns a live link to it. The link draws and animates the vibescape in a browser, so it works for anybody who opens it, with or without the app. The vibescape is not in the public gallery until `share_vibescape` is called on it. Call `vibescape_reference` first for the uniforms and helpers the language has — a vibescape that ignores the music will look like a still image, and there is a linter that says so.
Annotations the server declares
- title: Create a vibescape
- readOnlyHint: false
- destructiveHint: false
- openWorldHint: true
lint_vibescapeUse this after writing a vibescape, before sharing it.1 finding
Why it is in this group
- The input takes a statement or command to run (input.code), which can change anything it can reach.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "lint_vibescape" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The input takes a statement or command to run (input.code), which can change anything it can reach.
  What this check looks for
Description, as the server wrote it
Use this after writing a vibescape, before sharing it. It reads the code and says what would make it look wrong — most often that it never reads the music, so the picture is the same in silence as at full volume. Cheap to call and it catches most of what goes wrong.
Annotations the server declares
- title: Check a vibescape
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
share_vibescapeUse this when a vibescape should be listed in the public gallery, where anybody can find it at vibresia.com/vibescapes.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.
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
Use this when a vibescape should be listed in the public gallery, where anybody can find it at vibresia.com/vibescapes. A vibescape is created unlisted; this is the separate act of putting it in front of people. The name and the author go with it, so make sure they are right before calling this.
Annotations the server declares
- title: Share a vibescape
- readOnlyHint: false
- destructiveHint: false
- openWorldHint: true
vibescape_referenceUse this before writing a vibescape: it lists every uniform the music drives and every helper the language has, with what each is for.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
Use this before writing a vibescape: it lists every uniform the music drives and every helper the language has, with what each is for. Writing a vibescape without it usually takes two attempts instead of one.
Annotations the server declares
- title: The vibescape reference
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false

Only reads 4Looks things up and changes nothing.Show 4 read-only tools

get_appUse this when somebody wants the real thing: the app listens to the system audio directly, with no browser, and updates itself.Reads text others writeNo findings
Why it is in this group
- The name "get_app" says "get": a word for reading.
What it can reach
- untrusted-inputThe description's first sentence says "browser": it reads web pages, which anyone can write.
Description, as the server wrote it
Use this when somebody wants the real thing: the app listens to the system audio directly, with no browser, and updates itself. It gives the download link and the one-line install command for macOS.
Annotations the server declares
- title: Get the Vibresia app
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
get_paletteUse this to find out how a vibescape's colours are graded.No findings
Why it is in this group
- The name "get_palette" says "get": a word for reading.
Description, as the server wrote it
Use this to find out how a vibescape's colours are graded. Vibresia puts every vibescape through one of five palettes, so bright colours come out muted unless the shader accounts for it.
Annotations the server declares
- title: The palettes
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
get_vibescapeUse this to read somebody's vibescape, so it can be adapted or understood.No findings
Why it is in this group
- The name "get_vibescape" says "get": a word for reading.
Description, as the server wrote it
Use this to read somebody's vibescape, so it can be adapted or understood. Needs the id — the last part of the link.
Annotations the server declares
- title: Get a vibescape's code
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
list_vibescapesUse this when somebody wants to see music visualisations other people have made, or wants something to look at before writing their own.No findings
Why it is in this group
- The name "list_vibescapes" says "list": a word for reading.
Description, as the server wrote it
Use this when somebody wants to see music visualisations other people have made, or wants something to look at before writing their own. Returns the public gallery: each vibescape's name, who made it, and a link that plays it.
Annotations the server declares
- title: List the public vibescapes
- readOnlyHint: true
- destructiveHint: false
- 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.; create_vibescape
get_app
share_vibescape
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

Warnlint_vibescape
The server marks "lint_vibescape" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The input takes a statement or command to run (input.code), which can change anything it can reach.
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 1.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http music-visualizer https://vibresia.com/mcp

claude mcp add --transport http music-visualizer https://vibresia.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__music-visualizer__list_vibescapes",
      "mcp__music-visualizer__get_vibescape",
      "mcp__music-visualizer__get_palette",
      "mcp__music-visualizer__get_app"
    ],
    "ask": [
      "mcp__music-visualizer__create_vibescape",
      "mcp__music-visualizer__share_vibescape",
      "mcp__music-visualizer__lint_vibescape",
      "mcp__music-visualizer__vibescape_reference"
    ],
    "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 music-visualizer. Review it before you use it.

Capability tags behind 3 rules

mcp__music-visualizer__create_vibescape untrusted-input
mcp__music-visualizer__share_vibescape untrusted-input
mcp__music-visualizer__get_app 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.vibresia/music-visualizer/verify?hash=af3d504bf63f29a16be12f943bb116f05e8a5fb531165298205f639cebc16131" | jq -e '.changed == false'

Pinned hash af3d504bf63f, from Nov 2, 2026, 13:18 UTC.

Watch

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

https://anlyon.dev/servers/com.vibresia/music-visualizer/changes.xml

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Badge

[![anlyon.dev](https://anlyon.dev/badge/com.vibresia/music-visualizer.svg)](https://anlyon.dev/servers/com.vibresia/music-visualizer)

Source: MCP Registry · repository. Synced Nov 2, 2026, 13:17 UTC.