chat-gun (HsienW/chat-gun) is an MCP server listed on the M8ven Trust Index. It scores 62 out of 100, grade C. It declares 5 tools. No publisher has claimed this listing.

C
Caution
62/100

chat-gun

🤖 A full-stack Agent Chat Runtime for pre-production validation, built with act, TypeScript, and LangGraph JS combining streaming, multimodal, HITL, and tools with durable Task/Step execution, retry budgets, idempotency, compensation, distributed locks, context governance, OpenTelemetry tracing, model fallback, cost tracking, and Opik evaluation.

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.

How we verified

⚡ Live Monitored: not connected

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Who stands behind it

HsienW

Source: github_repo_search

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

Install from

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
⚠️
Known vulnerabilities in dependencies: 3 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
// tools this server exposes5 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

calculator_tool

計算 mathematical expression。支援 arithmetic、sqrt、sin、cos、tan、log、pi、e 與 parentheses。

weather_forecast

Get hourly or daily weather forecast for a city or location using Open-Meteo. Use this for tomorrow, tonight, weekend, date range, rain probability, temperature trend, or other forecast-backed weather questions. Do not use it for historical weather, climate knowledge, or standalone advice.

current_weather

Get real-time current weather for a city or location using Open-Meteo. Use this only for current weather, current temperature, humidity, current rain, or current wind questions. For tomorrow, tonight, weekend, date range, or rain probability forecast questions, use weather_forecast. Provide country

web_fetch

Fetch and extract readable text from a public HTTP/HTTPS URL. Use this after web_search to inspect source pages before answering.

web_search

Search the public web using Tavily Search API. Use this for current events, factual lookup, sources, product/news/law/regulation changes, and research tasks that need internet evidence.

// known CVEs in dependencies3 high10 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

highundici@5.29.0GHSA-v9p9-hfj2-hcw8

Undici has Unhandled Exception in WebSocket Client Due to Invalid server_max_window_bits Validation

highundici@5.29.0GHSA-vrm6-8vpv-qv8q

Undici has Unbounded Memory Consumption in WebSocket permessage-deflate Decompression

highundici@5.29.0GHSA-vxpw-j846-p89q

undici WebSocket client vulnerable to denial of service via fragment count bypass

lowundici@5.29.0GHSA-2mjp-6q6p-2qxm

Undici has an HTTP Request/Response Smuggling issue

lowundici@5.29.0GHSA-35p6-xmwp-9g52

undici vulnerable to HTTP response queue poisoning via keep-alive socket reuse

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// 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.
configCHAT_TEMPERATURE
configHTTPS_PROXY
configHTTP_PROXY
configMATH_TEMPERATURE
configMCP_AGENT_TEMPERATURE
confighttp_proxy
confighttps_proxy
// 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

5/5 tools missing one or more hints — calculator_tool (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); weather_forecast (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); current_weather (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +2 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.

No arbitrary install scripts

Has postinstall/preinstall script — runs arbitrary code on npm install

Remove postinstall/preinstall hooks unless they’re essential.

Production dependencies are patched

0 critical, 3 high severity in production deps — undici@5.29.0 (high), undici@5.29.0 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

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
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commit: 817b29fd7642ae3060be0b8cb4980e225e8e92c3
code hash: 7825742b3c5f1e2ecc28cb9f105a90bf70358ab4b95820f88356b75cbf6371c2
view raw JSON →
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