Draw.io MCP Server (lgazo/drawio-mcp-server) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.
Enables AI agents to programmatically create, modify, and analyze Draw.io diagrams through the Model Context Protocol. Supports generating architectural diagrams, flowcharts, and visualizations with bidirectional communication between AI systems and Draw.io.
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lgazo
Source: Glama · also listed on modelscope
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Install from
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Node.js Adapter for Hono: Path traversal in `serve-static` on Windows via encoded backslash (`%5C`)
Hono: ReDoS in CORS middleware via Access-Control-Request-Headers
hono/jsx does not isolate context per request, leading to cross-request data disclosure
Hono: Server-Side XSS via JSX Escaping Bypass in cx() Utility
Hono: API Gateway v1 adapter can drop a distinct repeated request header value during de-duplication
DRAWIO_MCP_REPLY_TIMEOUT_MSHARNESS_HTTPSDependencies
28 dependencies, 1 flagged: @playwright/test
Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
28/28 tools missing one or more hints — add-cell-of-shape (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); add-edge (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); add-rectangle (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +25 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool inputs are validated
Only 0/4 tool handlers declare input schemas (0%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
Only 0/4 tool handlers wrap calls in try/catch (0%)
Wrap each tool handler body in try/catch and return a structured error response.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Tool test coverage
11/28 tools referenced in tests (39%)
Write tests that reference each tool by name so every tool has at least one test.
Shell command execution
1 child_process call — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Dependency freshness
1/9 production deps stale: cachedir@2023-07-24 (3y)
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