Staruml (ezrabrilliant) MCP Server
staruml-mcp
npm
v0.3.3
Source verified
Published by ezrabrilliant — publish provenance cryptographically ties this package to that repository. That is proof of origin, not an official vendor package.
Model Context Protocol server for StarUML — generate UML diagrams from AI agents (Claude Code, Cursor, VS Code, Codex). Supports both stdio and Streamable HTTP transports.
The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.
1. Threat score — 100 − 0 = 100. What the published surface and source actually contain:
The deterministic scan raised no scored threat in the surface it inspected — the threat score stayed at 100. Capability observations and advisory notes are recorded but never lower it.
2. Client adoption risk — 100 − 6 = 94. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:
| Points | Adoption-risk factor |
|---|---|
| −6 | capability blast radius (high) — client exposure if the model is manipulated |
Capability observations and info notes are shown under Findings but never scored.
Open any row's finding below for the file, line and evidence behind a deduction.
Findings 2
high Tool "execute_command" exposes command/code executionMTC-CAP-001
Tool "execute_command" appears to run shell commands or evaluate code (keyword "execute command" in tool name). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.
Fix: Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.
Location: tool execute_command
low Mutating tool "execute_command" declares no destructiveHintMTC-CAP-005
Tool "execute_command" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.
Fix: Declare accurate annotations, and gate destructive tools on user confirmation regardless.
Location: tool execute_command
Tools 21
Each tool and what it can reach — statically extracted from the published source.
execute_commandruns code / shellopen_projectnetwork egressclose_diagramno sensitive capabilitycreate_diagramno sensitive capabilitycreate_edge_with_viewno sensitive capabilitycreate_elementno sensitive capabilitycreate_element_with_viewno sensitive capabilitydelete_elementno sensitive capabilityfind_elementsno sensitive capabilitygenerate_diagramno sensitive capability
Show 11 more tools ↓
get_all_commandsno sensitive capabilityget_all_diagrams_infono sensitive capabilityget_current_diagram_infono sensitive capabilityget_diagram_image_by_idno sensitive capabilityget_element_by_idno sensitive capabilityget_project_infono sensitive capabilitynew_projectno sensitive capabilitysave_projectno sensitive capabilitysave_project_asno sensitive capabilityswitch_diagramno sensitive capabilityupdate_elementno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (21 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Versions 1
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v0.3.3 latest |
A 94/100 | 2 | 1.13.0 | 2026-09-09 |
Embed this score
Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.
Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
npx mcptrustchecker scan staruml-mcp --onlineOther implementations of Staruml 1
Independent packages implementing the same tool, scanned with the same engine. Compare all 2 side by side →
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