PG-GMO (ShilinYang123/PG-GMO) is an MCP server listed on the M8ven Trust Index. It scores 54 out of 100, grade D. It declares 9 tools. No publisher has claimed this listing.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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ShilinYang123
Source: github_code
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The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.
get-selected-cellThis tool allows you to retrieve selected cell (whether vertex or edge) on the current page of a Draw.io diagram. The response is a JSON containing attributes of the cell.
add-rectangleThis tool allows you to add new Rectangle vertex cell (object) on the current page of a Draw.io diagram. It accepts multiple optional input parameter.
add-edgeThis tool creates an edge, sometimes called also a relation, between two vertexes (cells).
delete-cell-by-idDeletes a cell, whether it is a vertex or edge.
get-shape-categoriesRetrieves available shape categories from the diagram's library. Library is split into multiple categories.
get-shapes-in-categoryRetrieve all shapes in the provided category from the diagram's library. A shape primarily contains `style` based on which you can create new vertex cells.
get-shape-by-nameRetrieve a specific shape by its name from all available shapes in the diagram's library. It returns the shape and also the category it belongs.
add-cell-of-shapeThis tool allows you to add new vertex cell (object) on the current page of a Draw.io diagram by its shape name. It accepts multiple optional input parameter.
list-paged-modelRetrieves a paginated view of all cells (vertices and edges) in the current Draw.io diagram. This tool provides access to the complete model data with essential fields only, sanitized to remove circular dependencies and excessive data. It allows to filter based on multiple criteria and attribute boo…
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
nanoid: non-secure generators can loop indefinitely with negative size
nanoid: custom generators can loop indefinitely when size is zero
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
9/9 tools missing one or more hints — get-selected-cell (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); add-rectangle (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); add-edge (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +6 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.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Tool test coverage
Only 0/9 tools referenced in tests (0%)
Write tests that reference each tool by name so every tool has at least one test.
Production dependencies are patched
0 critical, 5 high severity in production deps — @modelcontextprotocol/sdk@1.10.1 (high), @modelcontextprotocol/sdk@1.10.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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