X1pheR/ms365-mcp (X1pheR/ms365-mcp) is an MCP server listed on the M8ven Trust Index. It scores 89 out of 100, grade B. It declares 3 tools. The publisher has proved control of what we score (Verified Publisher). It is connected through the M8ven GitHub App, so the listing is re-checked on every push.
Community-maintained container distribution for @softeria/ms-365-mcp-server with reproducible builds and release validation.
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.
How we verified
Monitored 14 days · every push re-verified
Install from
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All four hints declared on every tool
3/3 tools missing one or more hints — save-mail-attachment (missing: idempotentHint); promote-mail-attachment (missing: idempotentHint); cleanup-mail-attachment (missing: idempotentHint). 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.
Destructive tools are labelled
2 tools perform destructive updates without destructiveHint — save-mail-attachment deletes at line 363 (fs.rm(directory, { recursive: true, force: true })); promote-mail-attachment deletes at line 465 (fs.unlink(tempPath))
Add destructiveHint:true to any tool whose handler calls .delete(), .upsert(), .update(), unlink, rm, DELETE, DROP, REPLACE INTO, or any operation that overwrites existing data.
[](https://m8ven.ai/mcp/x1pher/ms365-mcp)?variant=verified from the URL.Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.
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