Skills/Glama/modularsynth-mcp

modularsynth-mcp@1.4.0

VERIFIED

Publisher claims: "Lets AI clients build, edit, and play browser-based modular synth patches by adding modules, wiring connections, adjusting parameters, and controlling playback." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry GlamaPublisher gregorybruneau · publishing for 3 daysInstalls 0Last detonated 3d ago
$npx skills add modularsynth-mcp
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Coverage

Server started and answered tools/list.
Tested
MCP initialize and tools/list · every tool description, for hidden instructions · every file read, file written and host contacted by what ran
Not tested
what the tools do when called with real credentials

Before you give it your token

It will ask for
no credential variables read in the code
Where it talks to
modularsynth.app (its own)Also workers.dev, evil.example — not the publisher's domain; check what for before connecting.
What the honeypot saw
no credential files read · no network
What we could not test
what the tools do when called with real credentials

Connect it under the guard; read the third-party hosts first. The code names workers.dev, evil.example as well as its own vendor. The guard pins the network to the hosts the honeypot saw.

$vet-skills run --net declared -- <the server's command>

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-11-11 and scored it 91/100 (Verified). It did what it claims and nothing else we could detect: no undeclared network egress, no credential reads, no persistent instruction writes. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 23 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
2.8sprocessdependency install exit 0
23sclaimed22 tools: describe_patch, list_module_types, list_presets, load_preset, new_patch, add_module, remove_module, connect, disconnect, set_param, set_bypass, set_notes, play_notes, save_scene, recall_scene, set_song, play_song, highlight, list_sounds, set_sample, set_transport, undo
23sprocessscript backend runs setup only
23sprocessno install scripts to re-run

Static findings

MEDIUM
npx invocation of non-well-known packageserver.js:229 · npx invocation of non-well-known package — may execute untrusted code// Lancé directement (npx modularsynth-mcp, extension Claude Desktop) : stdio vers l'IA.Fix: Pin versions and sources; vendor anything fetched at install time.
AST06

No other findings across 2,513 lines in 10 files.

Cost to the agent

Instructions loaded
≈42 tok
1 file · 10 in bundle
Tool list per prompt
≈2,847 tok
22 tools · 129 per tool
Handshake
499 ms
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 238

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

Vulnerability advisories (OSV) cover npm and PyPI packages; this registry has no advisory database.