PowerToys (microsoft/PowerToys) is an MCP server listed on the M8ven Trust Index. It scores 75 out of 100, grade B. It declares 2 tools. No publisher has claimed this listing.
Microsoft PowerToys is a collection of utilities that supercharge productivity and customization on Windows
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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microsoft
Source: github_code
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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.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
GITHUB_TOKENTool 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 — github_issue_images (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); github_issue_attachments (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.
Descriptions match behaviour
1 tool describes read intent but its handler mutates — github_issue_attachments (line 289: fs.mkdir(extractFolder, { recursive: true }))
Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.
README present
No README found
Add a README.md describing the server and its tools.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Tests exist
No test files found
Add tests that exercise each declared tool.
Shell command execution
1 call in production code run through a shell (launch.js:11)
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Secrets not written to files
1 secret value written to files
Avoid persisting secrets to disk. Keep them in memory or your secret manager.
Production dependencies are patched
0 critical, 1 high severity in production deps — @modelcontextprotocol/sdk@1.25.2 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Tool description accuracy
github_issue_attachments: description implies read-only but handler writes/deletes/executes
Update tool descriptions to accurately reflect all capabilities — especially write, delete, or execute operations.
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