Mercado Libre Monorepo (bue221/prueba-tecnica-mercado-libre) 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.
Esta es una prueba tecnica de mercado libre
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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bue221
Source: mcp.so
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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.
Trubo: Login callback CSRF/session fixation
Turbo: Unexpected local code execution during Yarn Berry detection
NEXT_PUBLIC_API_URLPORTTool 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
2/2 tools missing one or more hints — get-product-info (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); create-product (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint). 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 handlers catch errors
Only 0/2 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
Only 0/2 tools referenced in tests (0%)
Write tests that reference each tool by name so every tool has at least one test.
Secrets stay with their owner
2 secret/sensitive values flow into network calls (NEXT_PUBLIC_API_URL → dynamic, NEXT_PUBLIC_API_URL → dynamic)
Audit where credentials are sent. A NOTION_TOKEN should only reach api.notion.com — never a third-party host.
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