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Cush

Show HN: Cush – curl your shell, an HTTP tunnel for AI agents

51 AI Score
Show_hn other Added Apr 15, 2026

Details

Sector
other
Total Funding
$0
Last Round
$0

About

I built cush because coding agents can be helpful to diagnose and troubleshoot server issues.<p>The problem is that getting said agents onto a remote server, especially one you don&#x27;t control, means dealing with VPNs, bastion hosts, firewall rules, access controls, or audit trails. That&#x27;s assuming SSH isn&#x27;t even blocked.<p>cush takes a different approach. Instead of a shell, it opens a temporary, outbound HTTPS tunnel that lets you and your AI agent run constrained CLI commands on the server:<p><pre><code> $ cush open --allow grep,cat,tail --expiry 2h tunnel: https:&#x2F;&#x2F;abc123.ngrok.io token: a3f9c2d1... allowed: grep, cat, tail expires: in 2h </code></pre> Now any agent or HTTP client can execute allowed commands:<p><pre><code> $ curl -X POST https:&#x2F;&#x2F;abc123.ngrok.io \ -H &quot;Authorization: Bearer a3f9c2d1...&quot; \ -H &quot;Content-Type: application&#x2F;json&quot; \ -d &#x27;{&quot;command&quot;: [&quot;grep&quot;, &quot;-r&quot;, &quot;ERROR&quot;, &quot;&#x2F;var&#x2F;log&#x2F;app.log&quot;]}&#x27; &gt;&gt;&gt; {&quot;stdout&quot;:&quot;ERROR database connection refused\n&quot;,&quot;stderr&quot;:&quot;&quot;,&quot;exit_code&quot;:0} </code></pre> Point any agent at the tunnel&#x27;s URL:<p><pre><code> $ claude &quot;use https:&#x2F;&#x2F;abc123.ngrok.io with token a3f9c2d1... to find what&#x27;s causing the 500 errors&quot; </code></pre> Tunnels are authenticated, constrained, and short-lived. No server-side infrastructure changes required. Just a 7MB Rust binary + ngrok.<p>Looking for feedback, and 2-3 design partners to build audit trails.

AI Score Reasoning

Cush addresses a high-friction bottleneck in the emerging AI-agent-for-DevOps market by simplifying secure remote access without infrastructure overhauls. While the product offers strong developer experience and addresses a clear pain point, it currently lacks a defensive moat and faces significant enterprise security hurdles compared to established incumbents like Tailscale or Teleport.

Source

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