MCP-BPMN Server
Enables AI agents to create, manipulate, and manage BPMN 2.0 diagrams programmatically, with support for Mermaid conversion, auto-layout, and file persistence.
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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oisee
Source: Glama
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Install from
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.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
Mermaid improperly sanitizes sequence diagram labels leading to XSS
Mermaid: Improper sanitization of configuration leads to CSS injection
Mermaid does not properly sanitize architecture diagram iconText leading to XSS
Mermaid: Improper sanitization of `classDef` in state diagrams leads to HTML injection
MCP_BPMN_DIAGRAMS_PATHexport =/custom/pathTool 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
78/78 tools missing one or more hints — new_bpmn (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); new_from_mermaid (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); open_bpmn (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +75 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
33/78 tools referenced in tests (42%)
Write tests that reference each tool by name so every tool has at least one test.
Shell command execution
2 child_process calls — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Production dependencies are patched
0 critical, 1 high severity in production deps — @modelcontextprotocol/sdk@1.0.1 (high), mermaid@11.3.0 (medium)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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