--- title: "Misha (@markovvxow) | Hashnode" description: "AI Infra builder. Read the latest articles by Misha on Hashnode." url: "https://hashnode.com/@markovvxow" --- @markovvxow # Misha @markovvxow · Joined August 2026 AI Infra builder ### [I Benchmarked 9 Agent Sandboxes. “2 vCPU” Was Off by 3.2×](https://gobare.hashnode.dev/i-benchmarked-9-agent-sandboxes-2-vcpu-was-off-by-3-2?utm_source=hashnode&utm_medium=feed) Every few weeks someone posts a comparison of sandbox providers for AI agents. It’s usually a table: provider, \\(/vCPU-hour, \\)/GB-hour, maybe a cold start number pulled from the vendor’s own blog. So 9 min read · [gobare.hashnode.dev](https://gobare.hashnode.dev/i-benchmarked-9-agent-sandboxes-2-vcpu-was-off-by-3-2?utm_source=hashnode&utm_medium=feed) [Oct 7](https://hashnode.com/posts/i-benchmarked-9-agent-sandboxes-2-vcpu-was-off-by-3-2/6ac5aaad431ffc918cb90c69) ### [What is an agent runtime? What we learned splitting harness, runtime and sandbox into three processes](https://gobare.hashnode.dev/what-is-an-agent-runtime-what-we-learned-splitting-harness-runtime-and-sandbox-into-three-processes?utm_source=hashnode&utm_medium=feed) An agent runtime keeps an agent's work alive between turns. How it differs from a harness and a sandbox, from running all three separately. 7 min read · [gobare.hashnode.dev](https://gobare.hashnode.dev/what-is-an-agent-runtime-what-we-learned-splitting-harness-runtime-and-sandbox-into-three-processes?utm_source=hashnode&utm_medium=feed) [Sep 29](https://hashnode.com/posts/what-is-an-agent-runtime-what-we-learned-splitting-harness-runtime-and-sandbox-into-three-processes/6abb2d71a28e37cf0883c296) ### [I build a competing agent runtime. Here's what Claude Managed Agents' docs taught me](https://gobare.hashnode.dev/i-build-a-competing-agent-runtime-here-s-what-claude-managed-agents-docs-taught-me?utm_source=hashnode&utm_medium=feed) Where it's better than ours, the five cases where you need something else, and what the alternatives trade away 5 min read · [gobare.hashnode.dev](https://gobare.hashnode.dev/i-build-a-competing-agent-runtime-here-s-what-claude-managed-agents-docs-taught-me?utm_source=hashnode&utm_medium=feed) [Sep 29](https://hashnode.com/posts/i-build-a-competing-agent-runtime-here-s-what-claude-managed-agents-docs-taught-me/6abb2d5f0cf92c61cae49def) ### [Agent runtimes disagree on what a session is. I read the lifecycle docs.](https://gobare.hashnode.dev/agent-runtimes-disagree-on-what-a-session-is-i-read-the-lifecycle-docs?utm_source=hashnode&utm_medium=feed) Perplexity, OpenAI and Gobare answer one question differently: after the agent stops typing, does its machine exist? 9 min read · [gobare.hashnode.dev](https://gobare.hashnode.dev/agent-runtimes-disagree-on-what-a-session-is-i-read-the-lifecycle-docs?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/agent-runtimes-disagree-on-what-a-session-is-i-read-the-lifecycle-docs/6ab922b3e67a30764c533194) [Sep 27](https://hashnode.com/posts/agent-runtimes-disagree-on-what-a-session-is-i-read-the-lifecycle-docs/6ab922b3e67a30764c533194)