hato

Item: hato
Rating: 72
Author: M8ven

Enables inter-session messaging for Claude Code, allowing sessions on different machines to send messages to each other, with delivery as user turns and support for offline queuing.

→ severzemlya/hato · listed on glama

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// key findings

⚠️

Known vulnerabilities in dependencies: 2 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.

🔐

You'll be asked for 1 credential: HATO_TOKEN

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// known CVEs in dependencies2 high

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

high@modelcontextprotocol/sdk@1.0.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.0.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configHATO_DATA_DIR— ~/.local/share/hato hub SQLite location

configHATO_HOST— loopback or Tailscale IP>

configHATO_HUB— export =http://laptop:8790

configHATO_MSG_TTL_DAYS— 7 messages older than this are swept

configHATO_NAME— (random bird) requested session name

configHATO_PORT— / HATO_HOST 8790 / 0.0.0.0 hub bind — prefer the loopback or Tailscale IP; /hato:setup asks

configHATO_SESSION_TTL_DAYS— 14 offline session rows older than this are swept

🔐 secretHATO_TOKEN— openssl rand -hex 16>

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 6 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 Score](https://m8ven.ai/badge/mcp/severzemlya-hato-1kvccp)](https://m8ven.ai/mcp/severzemlya-hato-1kvccp)

commit: cc6d271ac2eaf38b18ff26bc7e3b977d7177df6f

code hash: d3c754aa2d0cde6965a3f76713107e7e9edc2a43ce1f541aa01a17e1d9e8757b

verified: 7/9/2026, 10:08:01 AM

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