io.github.ezrabrilliant/staruml-mcp
NPM · STARUML-MCP
MCP server for StarUML — generate UML diagrams from AI agents via stdio or HTTP.
Available components
Last scanned (8 hours ago)
Scores higher than 93% of npm servers
Category Developer Tools
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 30 of 94 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to ezrabrilliant/staruml-mcp). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 198 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability82
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 1501 tokens (~79/item across 19 items; 19 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 2 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "execute_command" implies "execute" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 19 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Checks we ran (16)
- Malware scan
- Known CVEs
- Install scripts
- Dependency health
- Source repository
- Provenance
- License
- Maintenance
- Security disclosure
- Schema quality
- Stability
- Tool coverage
- Injection markers
- Destructive annotations
- Judged manipulation
- MCP protocol
Does not apply to this package (2)
- Endpoint SecurityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
- Transport & ReachabilityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
The score does not measure everything. What the score does not measure →
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 3 Nov 26 0
- Stability: 0.97 → pass security
- 2 Nov 26 0
- Stability: pass → 0.97 functional
- 27 Oct 26 0
- Stability: 0.97 → pass security
- 26 Oct 26 0
- Stability: pass → 0.97 functional
- 24 Oct 26 −5
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- 20 Oct 26 0
- Stability: 0.97 → pass security
- 19 Oct 26 0
- Stability: pass → 0.97 functional
- 17 Oct 26 +2
- Stability: 0.87 → pass security
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 6 Nov 2026 · Analysed npm/staruml-mcp@0.2.0
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | ezrabrilliant/staruml-mcp |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/ezrabrilliant/staruml-mcp/.github/workflows/publish.yml@refs/tags/v0.2.0 |
| Rekor log index | 1341707866 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:2a3eb7705ed1e8cb96d389dbef18f16456ecabc682873a8285838fd8f7e430a5b688ab72b617c0ef710744d29e06da6a1f766c201ed68356c244fae46 |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 94 packages
| Packages resolved | 94 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
close_diagram ~58
Close a diagram tab by its ID. Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Diagram _id |
No output schema declared.
No examples provided.
create_diagram ~201
Create a typed UML diagram. The 'type' is a metamodel class name (e.g. 'UMLClassDiagram', 'UMLUseCaseDiagram', 'UMLSequenceDiagram', 'UMLActivityDiagram', 'ERDDiagram'). Unlike generate_diagram (Mermaid), this gives a native empty diagram you can populate via create_element. Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | – | Diagram name |
| parentId | string | yes | Parent element's _id (usually the project or a package) |
| type | string | yes | Diagram metamodel type: 'UMLClassDiagram', 'UMLUseCaseDiagram', 'UMLSequenceDiagram', 'UMLActivityDiagram', 'UMLStateDiagram', 'UMLComponentDiagram', 'UMLDeploymentDiagram', 'ERDDiagram' |
No output schema declared.
No examples provided.
create_element ~121
Create a new UML model element. The 'type' is a metamodel class name (e.g. 'UMLClass', 'UMLPackage', 'UMLInterface'). Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | – | Optional element name |
| parentId | string | yes | Parent element's _id |
| type | string | yes | Metamodel type, e.g. 'UMLClass', 'UMLPackage' |
No output schema declared.
No examples provided.
delete_element ~58
Delete an element from the project. Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Element _id to delete |
No output schema declared.
No examples provided.
execute_command ~102
Execute any built-in StarUML command by its ID. Use get_all_commands to discover available IDs. Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
| Name | Type | Req | Description |
|---|---|---|---|
| args | array | – | Optional positional arguments passed to the command handler |
| id | string | yes | Command ID. Examples: 'project:save', 'view:fit-to-window', 'project:new' |
No output schema declared.
No examples provided.
find_elements ~108
Find elements by metamodel type and/or name. Examples: type='UMLClass', name='User'. Omit both to return all. Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | – | Exact name match |
| type | string | – | Metamodel type. Examples: 'Project', 'UMLModel', 'UMLClass', 'UMLPackage' |
No output schema declared.
No examples provided.
generate_diagram ~113
Generate a UML diagram in StarUML from Mermaid code. Supported Mermaid diagram types: classDiagram, sequenceDiagram, flowchart, erDiagram, mindmap, requirementDiagram, stateDiagram. StarUML must be running with apiServer enabled.
| Name | Type | Req | Description |
|---|---|---|---|
| code | string | yes | Mermaid diagram source code. Must start with one of: classDiagram, sequenceDiagram, flowchart, erDiagram, mindmap, requirementDiagram, stateDiagram. Example: "flowchart LR\n A[Start] --> B[End]" |
No output schema declared.
No examples provided.
get_all_commands ~79
List all registered StarUML command IDs (e.g. 'project:save', 'view:fit-to-window', 'alignment:align-left'). Useful to discover what execute_command can trigger. Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_all_diagrams_info ~32
Get metadata (id, name, type) for all diagrams in the currently open StarUML project.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_current_diagram_info ~26
Get metadata for the currently active (focused) diagram in StarUML.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_diagram_image_by_id ~63
Retrieve a PNG image of a diagram by its ID. Use get_all_diagrams_info first to obtain IDs.
| Name | Type | Req | Description |
|---|---|---|---|
| diagramId | string | yes | Diagram ID. Obtain from get_all_diagrams_info tool (each diagram entry has an 'id' field). |
No output schema declared.
No examples provided.
get_element_by_id ~68
Retrieve a model element by its internal ID. Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Element _id as stored in the StarUML repository |
No output schema declared.
No examples provided.
get_project_info ~54
Get the current StarUML project's filename and top-level element summary. Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
new_project ~57
Create a new empty StarUML project (discards unsaved changes in current project). Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
open_project ~66
Open a StarUML project file (.mdj). Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
| Name | Type | Req | Description |
|---|---|---|---|
| filename | string | yes | Absolute path to the .mdj project file |
No output schema declared.
No examples provided.
save_project ~82
Save the current StarUML project. If filename is given, saves to that path. Otherwise saves to current path. Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
| Name | Type | Req | Description |
|---|---|---|---|
| filename | string | – | Optional absolute path. If omitted, saves to current project path. |
No output schema declared.
No examples provided.
save_project_as ~67
Save the current StarUML project to a new path. Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
| Name | Type | Req | Description |
|---|---|---|---|
| filename | string | yes | Absolute path for the .mdj file |
No output schema declared.
No examples provided.
switch_diagram ~61
Focus (open tab) a diagram by its ID. Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Diagram _id |
No output schema declared.
No examples provided.
update_element ~85
Set a property on an existing element. Requires staruml-mcp-extension to be installed in StarUML. Install from https://github.com/ezrabrilliant/staruml-mcp-extension
| Name | Type | Req | Description |
|---|---|---|---|
| field | string | yes | Property name, e.g. 'name', 'documentation', 'visibility' |
| id | string | yes | Element _id |
| value | – | – | New value |
No output schema declared.
No examples provided.
How do I install the io.github.ezrabrilliant/staruml-mcp server?
io.github.ezrabrilliant/staruml-mcp runs locally as an npm package, launched with npx -y staruml-mcp. The registry lists runner options for this package that are not in this command (they are not ones we reproduce, or they name another package). Check the registry entry before relying on it. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · staruml-mcp
claude mcp add ezrabrilliant-staruml-mcp -- npx -y staruml-mcp
The registry lists runner options for this package that are not in this command (they are not ones we reproduce, or they name another package). Check the registry entry before relying on it.
What is the io.github.ezrabrilliant/staruml-mcp server?
io.github.ezrabrilliant/staruml-mcp is listed in the public MCP registry as io.github.ezrabrilliant/staruml-mcp. MCP server for StarUML, generate UML diagrams from AI agents via stdio or HTTP. This page covers its npm package (staruml-mcp).
Is the io.github.ezrabrilliant/staruml-mcp server safe to use?
io.github.ezrabrilliant/staruml-mcp scores 89 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 6 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.ezrabrilliant/staruml-mcp server expose?
io.github.ezrabrilliant/staruml-mcp exposes 19 tools: generate_diagram, get_all_diagrams_info, get_current_diagram_info, get_diagram_image_by_id, get_all_commands, and 14 more. Their descriptions and schemas cost roughly 1,501 tokens of context every time the server is loaded.
Is the io.github.ezrabrilliant/staruml-mcp server still maintained?
io.github.ezrabrilliant/staruml-mcp is still listed as active in the MCP registry. We last reached this channel on 6 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.ezrabrilliant/staruml-mcp server under?
io.github.ezrabrilliant/staruml-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.
What did VerifyMCP test on the io.github.ezrabrilliant/staruml-mcp server?
VerifyMCP ran 16 checks on io.github.ezrabrilliant/staruml-mcp, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.