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MCP-Signature-Cloaking
This research introduces MCP Signature Cloaking - a novel backdoor technique that allows attackers to exploit hidden parameters in MCP servers, concealing malicious behavior behind interfaces that app
11stars
4forks
ai-securityllm-securitymcpmcp-securitymcp-signature-cloakingpenetration-testingprompt-injection
Quality signals
StaleNo testsNo CIThin docsNo licenseNew
InstallMCPInstall as a Claude Code skill
Universal installANY TOOL
$ npx skillcity@latest alexdevassy/MCP-Signature-CloakingAuto-detects the skill or MCP server in this repo and installs it for Claude Code, Codex, Cursor, Cline, OpenCode, Gemini CLI, Anti-Gravity, OpenClaw and Hermes.
Requires Node.js 18+ (ships with npx).
Or install manually
# Install into ~/.claude/skills/ mkdir -p ~/.claude/skills/mcp-signature-cloaking curl -fsSL https://raw.githubusercontent.com/alexdevassy/MCP-Signature-Cloaking/main/README.md -o ~/.claude/skills/mcp-signature-cloaking/SKILL.md
Loading README…
Ask a simulated agent to run this skill. It loads the real SKILL.md and reasons over your task with NVIDIA.
mcp-signature-cloaking — sandboxAI sandbox
Pick a quick prompt below or type your own — watch the agent execute this skill step by step.
guest@skillcity:~$Try a prompt