Live-code music patterns using TidalCycles mini-notation in JavaScript. Layer drums, synths, and bass with stack(). Choose from 72 drum machine banks, 128 GM instruments, built-in synths, and a full effects chain. Patterns play in a REPL the user can edit directly. Use get-strudel-guide for genre...
Risk signalsAccepts freeform code/query input (code)
Part of the Mcp Music Studio server.
Free to start. No card required.
AI agents use play-live-pattern to create or modify resources in Mcp Music Studio. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call play-live-pattern repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Mcp Music Studio.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"play-live-pattern": {
"limits": [
{
"counter": "play-live-pattern_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Mcp Music Studio policy for all 5 tools.
These attack patterns abuse exactly the kind of access play-live-pattern gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Live-code music patterns using TidalCycles mini-notation in JavaScript. Layer drums, synths, and bass with stack(). Choose from 72 drum machine banks, 128 GM instruments, built-in synths, and a full effects chain. Patterns play in a REPL the user can edit directly. Use get-strudel-guide for genre templates, sound references, and advanced features like visualization, arrangement, and sample loading. The Strudel REPL renders inline with an editable code editor, visualizations, and playback controls.. It is categorised as a Write tool in the Mcp Music Studio MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Mcp Music Studio MCP server in PolicyLayer and add a rule for play-live-pattern: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mcp Music Studio. Nothing to install.
play-live-pattern is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the play-live-pattern rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for play-live-pattern. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
play-live-pattern is provided by the Mcp Music Studio MCP server (linxule/mcp-music-studio). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 5 Mcp Music Studio tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.