strudel-ai (bowmana/strudel-ai) is an MCP server listed on the M8ven Trust Index. M8ven graded this before, but the code is no longer public at the location we read it, so we cannot re-check it. No publisher has claimed this listing.

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strudel-ai

Enables AI agents to create and edit Strudel music code, render offline WAV audio, and obtain structured hearing reports with waveform, spectrogram, BPM, and onset analysis.

→ bowmana/strudel-ai· listed on glama

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Who stands behind it

bowmana

Source: Glama

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Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
⚠️
Known vulnerabilities in dependencies: 5 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
// tools this server exposes13 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

session_create

Create a new Strudel session for iterative write/render/analyze.

session_get

Get session metadata and revision list.

session_list

List all local sessions.

code_get

Read Strudel code for a revision (default: current).

code_set

Write a new full Strudel code revision.

code_patch

Edit current Strudel code via search/replace ops or a unified diff; creates a new revision.

render

Offline-render the current (or specified) revision to WAV via Strudel/superdough.

analyze

Run the full hearing pack on a rendered revision (waveform/spectrogram/dB/bands/onsets/BPM + JSON report).

render_analyze

Render then analyze in one call. Returns render metadata + hearing report (AI-primary).

hearing_get

Fetch the structured hearing.json for a revision.

session_diff

Diff code (and hearing metrics if both analyzed) between two revisions.

artifact_paths

Return absolute paths to WAV/PNG/JSON artifacts for a revision (for opening or reading as files).

session_open

After a render: open the pattern in the Strudel.cc REPL and play the WAV in a local media player (mpv/xdg-open).

// known CVEs in dependencies5 high4 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.12.1GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.12.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.1GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highfastify@5.3.3GHSA-247c-9743-5963

Fastify has a Body Schema Validation Bypass via Leading Space in Content-Type Header

highfastify@5.3.3GHSA-jx2c-rxcm-jvmq

Fastify's Content-Type header tab character allows body validation bypass

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configSTRUDEL_AI_HOST
configSTRUDEL_AI_PORT
configSTRUDEL_AI_SAMPLESDefault sample bank is github:tidalcycles/dirt-samples (override with ). Synths (sawtooth, sine, …) come from superdough.
configSTRUDEL_AI_SESSIONS
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

13/13 tools missing one or more hints — session_create (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); session_get (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); session_list (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +10 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tool inputs are validated

12/13 tool handlers declare input schemas (92%)

Declare an inputSchema with zod/joi/yup on every tool definition.

Tool handlers catch errors

Only 0/13 tool handlers wrap calls in try/catch (0%)

Wrap each tool handler body in try/catch and return a structured error response.

Tests exist

No test files found

Add tests that exercise each declared tool.

No arbitrary install scripts

Has postinstall/preinstall script — runs arbitrary code on npm install

Remove postinstall/preinstall hooks unless they’re essential.

Production dependencies are patched

0 critical, 5 high severity in production deps — @modelcontextprotocol/sdk@1.12.1 (high), @modelcontextprotocol/sdk@1.12.1 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Dependency freshness

2/15 production deps stale: fft.js@2022-06-18 (4.1y), pngjs@2023-02-20 (3.5y)

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 7 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/bowmana/strudel-ai)](https://m8ven.ai/mcp/bowmana/strudel-ai)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: 64af0a946c777156b5c029b0023f8ae00b92e1d5
code hash: c0f00e7da0bd3e6688d5f829ab2af627aa2a9fb2a638a80c1c04031ede4c2b10
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