design-system-mcp-server@2.9.3
VERIFIED· not startedPublisher claims: "Centralized MCP server for ONEM/RVA Design System with stdio and HTTP transport support" Observed in sandbox: no network, touches nothing outside the project, writes no memory.
Coverage
Not started: dependency install failed; the server itself was not observed.- Tested
- the dependency install step · every file read, file written and host contacted by what ran
- Not tested
- server startup · the tool list · tool behavior
What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.
Before you give it your token
- It will ask for
MCP_ALLOW_UNAUTHENTICATED_HTTPMCP_API_KEYConfiguration, not credentials: ADMIN_KEY, CLAUDE_CODE_ENTRYPOINT, CLAUDE_MCP_CONFIG_PATH, CLAUDECODE, DESIGN_SYSTEM_PATH, DESIGN_SYSTEM_PATH_EXISTS, IDEA_INITIAL_DIRECTORY, INTELLIJ_ENVIRONMENT_READER, JETBRAINS_CONFIG_ROOT, JETBRAINS_MCP_CONFIG_PATH, MCP_ADMIN_KEY, MCP_AUTO_RESCAN, MCP_DATA_SOURCE, MCP_ENABLE_LEGACY_SSE, MCP_IDE, MCP_METRICS_FILE, MCP_PROJECT, MCP_REQUIRE_PROJECT, MCP_SETUP_PROFILE, MCP_TRANSPORT, MCP_URL, TERM_PROGRAM, TERMINAL_EMULATOR, VSCODE_MCP_CONFIG_PATH- Where it talks to
- no vendor host named in the codeAlso onemrva.priv, angular.dev — 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
- server startup · the tool list · tool behavior
Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names onemrva.priv, angular.dev as well as its own vendor. The guard injects MCP_ALLOW_UNAUTHENTICATED_HTTP, MCP_API_KEY only into requests to the host you bind (and its subdomains) and refuses the rest.
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; not started: dependency install failed; the server itself was not observed) on 2026-11-13 and scored it 87/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.
Behavior trace
Honeypot run · 12 s · 2 scenarios · 0 deviationsStatic findings
…never\n - … and 8 more lines\n - Affects: `assets`, `cookie-consent`, `package.json`, `theme`\n - Styles:\n - `theme/overrides/_cookie-consent.scss` › `.orejime-Env .orejime-Modal` › added `padding: var(--triple-spacer) !important`\n - `th…Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.… Files:\n - `mat-select-search/src/mat-select-search.component.ts`\n- **feat(mcp-server): refresh Figma sync data and harden DS migration tooling + JsonDOC on DS components** (`feeca79d`)\n - Affects: `card`, `flag-icon`, `layout`, `mat-av…Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.return ` on${toPascalCase(output.name)}(event: any) {\n console.log('${output.name}:', event);\n }`;Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.… the demo i18n assets.\n - Affects: `assets`\n - Files:\n - `assets/i18n/de.json`\n - `assets/i18n/en.json`\n - `assets/i18n/fr.json`\n - `assets/i18n/nl.json`\n- **feat(timeline): add full-size mode and refine layout, models and docs** (`…Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.npm install @onemrvapublic/design-system@latestFix: Pin the exact version (`[email protected]`, `==1.2.3`) so every install gets the bytes that were reviewed.…prise-number`, `mat-input-iban`, `mat-input-phone`, `mat-multi-select`, `package.json`, `shared`\n - Styles:\n - `jsonform-renderers/datepicker-renderer/datepicker-renderer.component.scss` › `DateControlRenderer` › removed `display: flex`\…Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.…rovider.ts` › `onemrvaThemeProvider()` › added `useValue: 'assets/mock/countries.json'`\n- **feat(deps): update dependencies and add new libraries to design system** (`9e058f3a`)\n - Affects: `package.json`\n - Files:\n - `package.json`\n\…Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.…X-Project": "<your-repo>" }` to this server in your MCP client config (e.g. .mcp.json / .cursor/mcp.json), or append ?project=<your-repo> to the URL if your client cannot send headers (JetBrains AI Assistant).', }, id: null, }; async funct…Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.Cost to the agent
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
No advisories in OSV for @onemrvapublic/design-system-mcp-server@2.9.3 as of 22 h ago. This is the package itself, not its dependencies.