Life & fun · September 23, 2026
mcpgawk
Catch MCP servers that change after you approved them
mcpgawk launched on September 23, 2026 with 77 votes, #429 of 8,097 launches that month and more than 95% of that year's launches.
What it does
mcpgawk sits between your agents and their MCP servers. If a tool changes after you approved it, mcpgawk holds that call until you say so. Free, on your machine, nothing uploaded.
Does a similar job
all alternatives →
SineFrame M314d ago · m3.sineframe.com · ▲63Test MCP servers and the agents that call them in pytest
MCP-Shield – Detect security issues in MCP servers2025 · github.com · ▲134I noticed the growing security concerns around MCP (https://news.ycombinator.com/item?id=43600192) and built an open source tool that can detect several patterns of tool poisoning attacks, exfiltration channels and cross-origin manipulations. MCP-Shield scans your installed servers (Cursor, Claude Desktop, etc.) and shows what each tool is trying to do at the instruction level, beyond just the API surface. It catches hidden instructions that try to read sensitive files, shadow other tools' behavior, or exfiltrate data. Example of what it detects: - Hidden instructions…
MCPGod: Fine-grained control over MCP clients, servers, and tools2025 · github.com · ▲37Hey everyone, I've wanted an easy way to control which mcp server tools are available to clients. So for example, I might want a gmail server to only expose the read tool (but not send, delete etc). I figured if I create a cli for spawning mcp servers, I could intercept the stdin, stdout, stderr etc and modify what the clients see when they are making calls to list tools, resources, and prompts. Well it worked! In the initial version you can easily add a server to claude with a safe list of tools: npx -y mcpgod add @modelcontextprotocol/server-everything --client claude --tools=echo,add…
Mcpsnoop – Wireshark for MCP (transparent proxy and live TUI)Jul 2026 · github.com · ▲64Wireshark for MCP. A transparent proxy that shows every real tool call between your AI client and your MCP servers, live in your terminal. - kerlenton/mcpsnoop
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