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D
Caution
45/100
14 days ago

Tengu

Turns Claude into a penetration testing copilot with 80 security tools, safety controls, and automatic reporting.

→ rfunix/tengu· listed on glama

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

rfunix

Source: Glama

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// key findings
🚨
Reads files from sensitive locations
Touches: default_credentials.json
🔐
You'll be asked for 4 credentials: ZAP_API_KEY, ANTHROPIC_API_KEY, NVD_API_KEY, TENGU_SHODAN_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configZAP_BASE_URL
🔐 secretZAP_API_KEY
🔐 secretANTHROPIC_API_KEYEdit .env: set and TENGU_AGENT_TARGET
configTENGU_CONFIG_PATH
configTENGU_LOG_LEVEL
🔐 secretNVD_API_KEY
🔐 secretTENGU_SHODAN_API_KEY
configTENGU_ALLOWED_HOSTS"192.168.1.0/24,10.0.0.0/8" make docker-up
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

80/80 tools missing one or more hints — check_tools (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); validate_target (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); nmap_scan (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +77 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tests exist

No test files found

Add tests that exercise each declared tool.

No access to sensitive paths

Reads sensitive paths: default_credentials.json

Remove reads of sensitive system paths. If you genuinely need them, document why in the README.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 4 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Verified](https://m8ven.ai/badge/mcp/rfunix-tengu-1xhs22?variant=verified)](https://m8ven.ai/mcp/rfunix-tengu-1xhs22)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: c8d4f7e7bfbe6e2fc4f23c9ae9cd195433b980bf
code hash: 1d4c52e77ea44650ae8c856c5b6e9290848238718f313947fabd6a3a173991b0
verified: 8/6/2026, 5:33:11 AM
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