markdown-for-agents-mcp (JohnnyFoulds/markdown-for-agents-mcp) 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.
MCP server for AI agents -- fetch any URL with full JavaScript rendering (Playwright/Chromium) and convert to clean, token-efficient markdown. Works on React, Vue, Angular, and any JS-heavy page. Includes web search, batch fetching, binary file download, LRU cache, SSRF protection, and structured output.
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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JohnnyFoulds
Source: Glama
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Playwright downloads and installs browsers without verifying the authenticity of the SSL certificate
HTTP_PORTHTTP Server Mode — Run as an HTTP server (--http [port] or env var) with optional bearer token authHTTP_PROXYMCP_AUTH_TOKENAll MCP traffic is handled at POSTGETDELETE /mcp. To require a bearer token, set :PLAYWRIGHT_PROXYProxy Support — Pass to route Playwright traffic through a proxyAll four hints declared on every tool
5/5 tools missing one or more hints — fetch_url (missing: destructiveHint, openWorldHint); fetch_urls (missing: destructiveHint, openWorldHint); health_check (missing: destructiveHint, openWorldHint), +2 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.
Tool inputs are validated
4/5 tool handlers declare input schemas (80%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
4/5 tool handlers wrap calls in try/catch (80%)
Wrap each tool handler body in try/catch and return a structured error response.
Tool test coverage
3/5 tools referenced in tests (60%)
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.
No arbitrary install scripts
Has postinstall/preinstall script — runs arbitrary code on npm install
Remove postinstall/preinstall hooks unless they’re essential.
Production dependencies are patched
0 critical, 1 high severity in production deps — playwright@1.40.0 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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