Music Studio

Two-mode MCP music studio: scored composition (ABC notation) and live performance (Strudel). Interactive ext-apps UI with sheet music rendering, 30+ instruments, style presets, and live coding REPL.

MCP Servers TypeScript Listed AGPL-3.0

Is Music Studio safe? Strong public trust posture, backed by multiple independent signals.

OSSF Scorecard 5.7 / 10
Provenance Attested
Signed commits 1%
Last push 3d ago
Advisories None known
Compare Music Studio
Suggest a correction

In detail: Music Studio scores 79.9/100 (Grade B), ranked #166 of 1378 tracked open-source AI agent projects, on evidence coverage B (3 of 5 independent signal types). The public evidence: its packages ship with cryptographic provenance; OSSF Scorecard rates its supply-chain practices 5.7/10; 1% of recent commits are signed; no published advisory affects its latest release (mcp-music-studio); last pushed 2026-10-13. Every point is earned from checkable signals — never paid placement. How scoring works →

How Music Studio could raise its score

Each line changes one public signal and recomputes with the live scoring function. The gains don't add up exactly, because the score is capped near the top.

Chain of custody

Scanners check what the code says. This traces who ships Music Studio and whether that has changed: from the source repository, through how changes are reviewed and released, to the package you install. These are the checks for OWASP ASI04 Agentic Supply Chain Vulnerabilities.

  1. Source Partly signed

    github.com/linxule/mcp-music-studio, AGPL-3.0, last pushed 2026-10-13. 1% of the last 100 commits carry a verified signature; the rest can't be tied to a verified identity.

  2. Review and release Mixed

    OpenSSF Scorecard rates the repository's practices 5.7/10 (scanned Sep 29, 2026, refresh pending). The checks that decide who can get a change released:

    • Code Review0
    • Branch Protection0
    • Signed Releasesn/a
    • Dangerous Workflow10
    • Token Permissions9
    • Pinned Dependencies0
    All 18 Scorecard checks
    Binary-Artifacts 10
    Branch-Protection 0
    CI-Tests 10
    CII-Best-Practices 0
    Code-Review 0
    Contributors 3
    Dangerous-Workflow 10
    Dependency-Update-Tool 10
    Fuzzing 0
    License 10
    Maintained 10
    Packaging 10
    Pinned-Dependencies 0
    SAST 0
    Security-Policy 0
    Signed-Releases -1
    Token-Permissions 9
    Vulnerabilities 7
  3. Published packages Linked and attested

    • npm mcp-music-studio Source link points back to this repo Build provenance attested
  4. What you install today No known advisories

    Latest release checked: mcp-music-studio 0.12.4. No published advisory affects it (OSV, checked 2026-10-15).

Changes to this chain

  • 2026-09-26 License changed from MIT to AGPL-3.0
  • 2026-09-23 Package provenance attestation detected
  • 2026-09-01 OSSF Scorecard: 4.5/10

Evidence behind this score

Coverage B: 3 of 5 independent evidence types found.

  • GitHub repository data
  • Package downloads
  • Supply-chain checks
  • Public actions (missing)
  • Community mentions (missing)

Verify this score yourself

Every build re-issues Music Studio’s score as an Ed25519-signed credential, valid for 7 days. You can check it offline against HVTracker’s published key; if anyone changes a number after signing, verification fails.

What this score doesn’t check

It covers who ships the code, not what the code does. It doesn’t read tool descriptions or prompts for injected instructions, watch runtime behaviour, or find bugs nobody has disclosed yet. For that, run a content scanner before you connect it, such as Cisco MCP Scanner or Snyk Agent Scan.

How Music Studio compares in MCP Servers

  1. #79 Openzim MCP 80.1 +0.2
  2. #80 Obsidian Sync MCP 80.1 +0.2
  3. #81 Music Studio 79.9 this agent
  4. #82 CrowdStrike Falcon MCP Server 79.8 −0.1
  5. #83 Webdriverio MCP 79.8 −0.1

Bars show each HVTrust score; the tick marks Music Studio’s 79.9.

Where the 79.9 comes from

HVTrust dimensions vs the MCP Servers average

79.9 / 100 · 100.0% confidence

Music Studio MCP Servers average (781 agents)

Safety / Integrity50% OSSF Scorecard · 30% provenance · 20% signed commits
14.7 / 25
4.2 above avg 10.5
Identity / Provenance60% listing status · 40% build provenance
18.0 / 18
4.5 above avg 13.5
Transparency50% declared license · 50% OSSF Scorecard
13.3 / 17
1.0 above avg 12.3
Maintenance60% last-push freshness · 40% commit activity
19.8 / 20
7.5 above avg 12.3
AdoptionLog-scaled stars · package downloads
8.1 / 20
0.7 above avg 7.4

Quick Trust Read

What Would Improve It
Increase the share of verified signed commits for clearer maintainer identity.
Recent Changes
2026-10-16
Grade Changed
Trust grade A → B
2026-10-13
Grade Changed
Trust grade B → A
2026-10-12
Grade Changed
Trust grade A → B
Maintainer Checklist
Raise Scorecard signals Current OSSF Scorecard is 5.7/10. Tighten the weakest checks to improve public safety evidence.
Increase signed commits Raise the share of verified-signed commits to make maintainer identity and release history easier to trust.
65.7
Activity sub-score · out of 100
#81

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption. Grade B reflects the trust score band: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Evidence coverage B is separate — it grades how many independent signal types back the score (3 of 5), so a high score on thin evidence stays visible. Full methodology →

Signals refreshed 2026-10-16 16:07 UTC · Repo last pushed 3 days ago

Rank Trend

2026-09-29 2026-10-16

Activity & Reach

Stars
74
Forks
10
Last Push
2026-10-13
3 days ago
Commits (4 wk)
135
Downloads (7d)
461
npm
HN mentions (30d)
—
Open Issues
0
Rank Change
▼1
was #165

Analysis

Activity Inputs

65.7 / 100
StarsRepository reach
11.3 / 30
FreshnessLast push recency
24.6 / 25
ActivityRecent commits
25 / 25
CommunityFork signal
4.8 / 20

Common questions about Music Studio

Public supply-chain signals for Music Studio are strong: it has multiple independent trust indicators in place. This does not replace your own security review, but Music Studio carries less obvious unverified-evidence risk than projects with thin signals.
Does Music Studio publish package provenance?
Yes. Music Studio's package releases carry build provenance attestations, which cryptographically link the published package back to its source repository and CI workflow.
Does Music Studio have an OpenSSF Scorecard?
Music Studio has an OpenSSF Scorecard score of 5.7/10. The Scorecard checks for branch protection, signed releases, dependency updates, fuzzing, code review, and other supply-chain hygiene items. See the full check breakdown on this page.
Is Music Studio actively maintained?
Actively maintained. The repository was pushed to within the last 3 day(s).
What license does Music Studio use?
Music Studio ships under AGPL-3.0. A declared, OSI-approved license is one of the transparency signals HVTrust scores.
Are Music Studio's commits signed?
1% of the last 100 commits to Music Studio are verified-signed (GPG, SSH, S/MIME, or GitHub's signing flow). Signed commits help confirm that code was authored by who the commit claims.

Not a safety endorsement. HVTracker describes what public signals show, not whether a project is safe for your use case. Run your own security review before adopting in production.

AI agent surface

MCP, providers, tool surface
Scored in HVTrust

These runtime-trust fields — detected from public repo docs and manifests — contribute a bounded adjustment to this project's HVTrust score alongside supply-chain evidence. The exact values each field can add or subtract are documented in the methodology → Compare this surface across every listed agent in the capability matrix →

MCP Server Support
high confidence
Implemented
Music Studio appears to expose MCP server capabilities.
Detailed evidence is not shown in the public view.
External Service Dependencies
None detected
No clear third-party provider dependency detected.
Credential signal: No explicit API-key/config marker detected.
Tool / Plugin Surface
None detected
No clear plugin system or broad tool surface detected.
Detailed evidence is not shown in the public view.
Package Provenance Drift
high confidence
Match
Published package metadata matches the tracked repo
Detailed evidence is not shown in the public view.
  • MCP signal live
  • External deps live
  • Tool / plugin surface live
  • Package provenance drift live
How this surface has changed

Detected changes to Music Studio's runtime surface and supply-chain posture, from daily public-signal snapshots. A change here means our detectors see something different — a genuinely changed capability, or better evidence of an existing one.

2026-10-03
Mcp Status Changed
Detected MCP server support changed: declared → implemented
2026-09-23
Mcp Status Changed
Detected MCP server support changed: none → declared
2026-09-23
Provenance Added
Package provenance attestation detected

Maintain Music Studio?

For maintainers

HVTrust scores Music Studio from public signals only — we never contact maintainers first. If a signal is wrong, stale, or missing (provenance you publish, a Scorecard you run, signed releases), tell us and we'll review it. Corrections are public and tracked on GitHub.

Reputation Timeline

Signal history
Rank 20Grade 7HVTrust 4Listed 2MCP 2Scorecard 1Score 1Delisted 1Provenance 1License 1
2026-10-16
Grade Changed
Trust grade A → B
2026-10-13
Grade Changed
Trust grade B → A
2026-10-12
Grade Changed
Trust grade A → B
2026-10-12
Rank Moved
Rank dropped 14 spots (#150 → #164)
2026-10-11
Rank Moved
Rank dropped 10 spots (#140 → #150)
2026-10-03
Mcp Status Changed
Detected MCP server support changed: declared → implemented
2026-10-03
Grade Changed
Trust grade B → A
2026-10-03
Rank Moved
Rank rose 32 spots (#163 → #131)
2026-09-28
Rank Moved
Rank rose 28 spots (#182 → #154)
2026-09-26
License Changed
License changed from MIT to AGPL-3.0
2026-09-23
Mcp Status Changed
Detected MCP server support changed: none → declared
2026-09-23
Provenance Added
Package provenance attestation detected
2026-09-23
Grade Changed
Trust grade D → B
2026-09-23
Rank Moved
Rank rose 504 spots (#681 → #177)
2026-09-23
HVTrust Changed
HVTrust up 46.5pts (31.2 → 77.7)
2026-09-22
Newly Listed
First tracked at rank #681
2026-09-21
Removed From Active Tracking
Removed from active tracking
2026-09-14
Rank Moved
Rank rose 37 spots (#217 → #180)
2026-09-08
Grade Changed
Trust grade C → B
2026-09-08
Rank Moved
Rank rose 274 spots (#486 → #212)
2026-09-08
HVTrust Changed
HVTrust up 12.2pts (63.1 → 75.3)
2026-09-08
Activity Score Changed
Activity score up 34pts (32 → 66)
2026-09-07
Rank Moved
Rank dropped 33 spots (#453 → #486)
2026-09-05
Rank Moved
Rank dropped 73 spots (#376 → #449)
2026-09-03
Grade Changed
Trust grade D → C
2026-09-03
Rank Moved
Rank rose 568 spots (#935 → #367)
2026-09-03
HVTrust Changed
HVTrust up 21.5pts (41.9 → 63.4)
2026-09-02
Rank Moved
Rank dropped 56 spots (#879 → #935)
2026-09-01
Scorecard Added
OSSF Scorecard: 4.5/10
2026-09-01
Rank Moved
Rank rose 107 spots (#986 → #879)
2026-09-01
HVTrust Changed
HVTrust up 6.3pts (35.7 → 42.0)
2026-08-31
Rank Moved
Rank dropped 30 spots (#956 → #986)
2026-08-30
Rank Moved
Rank dropped 46 spots (#910 → #956)
2026-08-29
Rank Moved
Rank dropped 54 spots (#856 → #910)
2026-08-28
Rank Moved
Rank dropped 27 spots (#829 → #856)
2026-08-27
Rank Moved
Rank dropped 22 spots (#807 → #829)
2026-08-26
Rank Moved
Rank dropped 104 spots (#703 → #807)
2026-08-16
Rank Moved
Rank dropped 13 spots (#678 → #691)
2026-08-10
Rank Moved
Rank dropped 31 spots (#645 → #676)
2026-08-08
Newly Listed
First tracked at rank #646

Embed Badge Badge guide for maintainers →

For maintainers
HVTrust 79.9 Grade B
Markdown:
[![HVTrust](https://hvtracker.net/badge/music-studio.svg)](https://hvtracker.net/agents/music-studio)
HTML:
<a href="https://hvtracker.net/agents/music-studio"><img src="https://hvtracker.net/badge/music-studio.svg" alt="HVTrust"></a>

Other agents in MCP Servers

Data sources
GitHub REST API (repo, commits, stars, forks, license) · npm Registry (downloads, provenance) · OpenSSF Scorecard CLI
Each agent's signals refresh once daily across 6 staggered batches. Methodology v4.4 · Raw JSON