AI Plugin Index
Agent Warden
Verified · npm:@shivdevMCP server by ShivShankarDash · updated · ★ 0 · 2.4k downloads a week
A firewall for AI agents. Detects and blocks prompt injection in email, web pages, documents and MCP tool results before they reach your model. Agent Warden is published by npm:@shivdev from its verified domain in the official MCP Registry.
Last commit 3 days ago
MIT: permissive, fine for commercial use
Clear description, published package or server URL, original repository
Tells the assistant to ignore its instructions or hide actions from you
Install Agent Warden
Built from the published package, never by AIclaude mcp add agent-warden -- npx -y @shivdev/agent-wardenRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"agent-warden": {
"command": "npx",
"args": [
"-y",
"@shivdev/agent-warden"
]
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"agent-warden": {
"command": "npx",
"args": [
"-y",
"@shivdev/agent-warden"
]
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"agent-warden": {
"command": "npx",
"args": [
"-y",
"@shivdev/agent-warden"
]
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add agent-warden -- npx -y @shivdev/agent-warden{
"mcpServers": {
"agent-warden": {
"command": "npx",
"args": [
"-y",
"@shivdev/agent-warden"
]
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add agent-warden npx -y @shivdev/agent-wardenGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the agent-warden block.
Security check
D- Tells the assistant to ignore its instructions or hide actions from youIn
README.md:Ignore all previous instructions - Downloads a script from the internet and runs it (a well-known installer)In
README.md:curl -fsSL https://bun.sh/install | bash
Checked automatically: README.md, package.json. This looks for known risky patterns and is not a full audit. How grades work
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Agent Warden: common questions
How do I install Agent Warden?
In Claude Code run claude mcp add agent-warden -- npx -y @shivdev/agent-warden. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is Agent Warden the official server?
Agent Warden is published by npm:@shivdev from its verified domain in the official MCP Registry.
Is Agent Warden free?
The code is published under the MIT licence. The service it connects to may have its own pricing.
Is Agent Warden safe to use?
It scores 84 of 100. Grades: maintenance A, licence A, quality C. Security check: grade D (tells the assistant to ignore its instructions or hide actions from you). Review the code before you install. How grades work.
What are alternatives to Agent Warden?
Similar MCP servers: OpenWork MCP Gateway, Modelcontextprotocol Core, Agents MCP, MCP Remote.
Does Agent Warden work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.