io.github.ezrabrilliant/staruml-mcp

NPM · STARUML-MCP · SCANNED AUG 3

MCP server for StarUML — generate UML diagrams from AI agents via stdio or HTTP.

Available components

+33 this week 79 79 Trust /100

Trust breakdown (6 categories)

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 →

Supply Chain Security87

No malware found by supply-chain analysis.Pass
Only part of the dependency tree could be resolved (96 of 100), so this covers what we could see, not the whole tree.Partial
No install/post-install scripts declared.Pass
Only part of the dependency tree could be resolved (96 of 100), so this covers what we could see, not the whole tree. 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 103 days ago).Pass
Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail

Schema Quality & AI Usability71

AI-judged instruction clarity (good).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 Management27

Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial

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

Capabilities100

Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass

Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

npm · staruml-mcp

Claude Codex opencode OpenClaw Hermes Other

# add to Claude Code

claude mcp add ezrabrilliant-staruml-mcp -- npx -y staruml-mcp

# add to Codex CLI

codex mcp add ezrabrilliant-staruml-mcp -- npx -y staruml-mcp

// opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ezrabrilliant-staruml-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "staruml-mcp"
      ],
      "enabled": true
    }
  }
}

# add to OpenClaw

openclaw mcp add ezrabrilliant-staruml-mcp --command npx --arg -y --arg staruml-mcp

# ~/.hermes/config.yaml

mcp_servers:
  ezrabrilliant-staruml-mcp:
    command: "npx"
    args: ["-y", "staruml-mcp"]

// mcp.json

{
  "mcpServers": {
    "ezrabrilliant-staruml-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "staruml-mcp"
      ]
    }
  }
}

Changelog

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 Aug 26 +1

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
2 Aug 26 +52
- Provenance: unverified → pass ▲ security
- Install scripts: unverified → pass ▲ security
- Known CVEs: unverified → partial ▲ security
- Malware scan: unverified → pass ▲ security
- The attested source repository moved: ezrabrilliant/staruml-mcp security
- License: unverified → pass ▲ functional
- Stability: unverified → 0.23 ▲ functional
- Dependency health: unverified → partial ▲ functional
- Maintenance: unverified → pass ▲ functional
- Schema quality: unverified → good ▲ functional
- Licence: MIT functional
1 Aug 26 +5
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- MCP protocol: unverified → pass ▲ functional
31 Jul 26 −7
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
30 Jul 26 −18
- Malware scan: pass → unverified ▼ security
28 Jul 26 0
- Security disclosure: unverified → fail ▼ functional
27 Jul 26 46

First indexed and scored.

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Diagnostics

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 3 Aug 2026 · Analysed npm/[email protected]

Provenance verified

Ecosystem: npm · Outcome: verified

Reason: verified

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:: https://slsa.dev/provenance/v1
Subject digest:: sha512:2a3eb7705ed1e8cb96d389dbef18f16456ecabc682873a8285838fd8f7e430a5b688ab72b617c0ef710744d29e06da6a1f766c201ed68356c244fae46
Discovery method:: attestation_endpoint

Dependencies 96 packages

96 packages in the resolved dependency tree · 96 deprecated · 29 stale.

The dependency tree was only partially resolved, so these counts may be incomplete.

MCP tools — 19 exposed · ~1,501 tokens

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.

Tool Tokens

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

Input Output Examples

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

Input Output Examples

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

Input Output Examples

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

Input Output Examples

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

Input Output Examples

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

Input Output Examples

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.

Input Output Examples

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 Output Examples

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 Output Examples

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 Output Examples

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.

Input Output Examples

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

Input Output Examples

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 Output Examples

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 Output Examples

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

Input Output Examples

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

Input Output Examples

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

Input Output Examples

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

Input Output Examples

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

Input Output Examples

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.

On this page

Handy links

Scoring key

80+ high trust
60–79 medium
below 60 low

How we score

Score history · last 30 days

27 Jul 3 Aug