Proxies the GitHub MCP server, returns compact schema instead of raw JSON, and enables agents to extract specific fields locally via query_response, reducing context size and cost.
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
process.env. You'll be asked to provide them before it can run.CACHE_SIZE— no 50 Max number of cached responses kept in memory before LRU eviction. Each cached entry is one upstream tool result.GITHUB_PAT— yes — Bearer token forwarded as the Authorization header on every upstream request.METRICS_CSV— no (off) If set to a file path, the proxy appends per-tool-call metrics (raw vs sketched response size, tokens, timing) to that CSV. Off by default — set it explicitly to opt in.UPSTREAM_MCP_URL— no https://api.githubcopilot.com/mcp Upstream MCP endpoint. Override for testing or self-hosted GitHub MCPs.[](https://m8ven.ai/mcp/markadelnawar-github-mcp-sketch-1r7e34)