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Diogenes Agent Guardrails & Sandbox MCP

warnings

diogenes-micro-gateway.corinth.workers.dev

Autonomous agent guardrails, bash sandboxing, MCP rugpull diffing & prompt firewalls.

https://diogenes-micro-gateway.corinth.workers.dev/mcp/agent-guardrailsWebsiteNo authMCP 2024-11-05v2.5.0last checked 21 Oct 2026spoke MCP on 100% of 5 checks (30 days)initialize in 212 ms

Last checked 21 Oct 2026

✓Answered the MCP handshake (MCP 2024-11-05)
✓Auth detected: No auth
✓Lists 12 tools
!1 warning
✓Spoke MCP on 5 of 5 checks (30 days)

Will my client connect?

Decided from what the probe found at the endpoint, and from what each client's own documentation says it can complete. Every row carries the day that documentation was read.

✓Claude CodeConnects

The endpoint answers an anonymous handshake, so no credential is needed.

claude mcp add --transport http diogenes-agent-guardrails-sandbox-mcp https://diogenes-micro-gateway.corinth.workers.dev/mcp/agent-guardrails

Claude Code docs · read on 2026-08-30

✓Claude (claude.ai & Desktop)Connects

The endpoint answers an anonymous handshake, so no credential is needed.

Settings → Connectors → Add custom connector, then paste https://diogenes-micro-gateway.corinth.workers.dev/mcp/agent-guardrails.

Claude (claude.ai & Desktop) docs · read on 2026-08-30

✓ChatGPTConnects

The endpoint answers an anonymous handshake, so no credential is needed.

Settings → Apps → Advanced settings → Developer mode, then create a connector pointing at https://diogenes-micro-gateway.corinth.workers.dev/mcp/agent-guardrails.

ChatGPT docs · read on 2026-08-30

✓CursorConnects

The endpoint answers an anonymous handshake, so no credential is needed.

{
  "mcpServers": {
    "diogenes-agent-guardrails-sandbox-mcp": {
      "url": "https://diogenes-micro-gateway.corinth.workers.dev/mcp/agent-guardrails"
    }
  }
}

Cursor docs · read on 2026-08-30

✓VS Code (Copilot)Connects

The endpoint answers an anonymous handshake, so no credential is needed.

{
  "servers": {
    "diogenes-agent-guardrails-sandbox-mcp": {
      "type": "http",
      "url": "https://diogenes-micro-gateway.corinth.workers.dev/mcp/agent-guardrails"
    }
  }
}

VS Code (Copilot) docs · read on 2026-08-30

How to authenticate

Checked against the endpoint by our probe on 21 Oct 2026. These are the capabilities the server advertises, not a prediction about any particular client.

Scheme	No auth
Protected-resource metadata	✕Not found Without it a client has to guess where the authorization server lives.
Anonymous access	Handshake succeeds; 12 tools listable
Credentials demanded in prose	✕verify_a2a_agent_card These tools are listed anonymously and their own descriptions ask for an account or key, but no challenge is issued — so a client has nothing to act on and the refusal arrives as a tool error.

What the probe found

warningTools needing credentials are listed without a challenge

1 of the 12 tools listed anonymously say in their own descriptions that they need an account or a key (verify_a2a_agent_card), but the endpoint issued no WWW-Authenticate challenge. The requirement is stated only in prose, so a call reaches the tool and comes back as a tool error instead of an authorization step.

Tools

audit_mcp_server_manifestaudit_outbound_egress_urlaudit_response_factualitydetect_agent_action_loopdetect_mcp_schema_rugpullexecute_python_sandboxredact_sensitive_piisanitize_tool_output_streamvalidate_mcp_sampling_requestvalidate_sql_query_astverify_a2a_agent_cardverify_agent_command_safety

Contract history

21 Oct 2026v2.5.09 breaking12 compatible

Breaking: agent_loop_circuit_breaker, agent_mcp_manifest_auditor, agent_sql_guard, code_sandbox, guardrail_verify, mcp_rugpull_diff, mcp_sampling_guard, scrub_pii, tool_output_firewall

20 Oct 2026v2.5.0first recorded contract

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Status badge

Status for a README, from the last probe — cached an hour, so up to seven hours behind the endpoint. Links back to this page.

[![MCP status](https://mcpi.app/servers/diogenes-agent-guardrails-sandbox-mcp/badge.svg)](https://mcpi.app/servers/diogenes-agent-guardrails-sandbox-mcp)