AI Agents

If I had to choose quickly: Northflank is the enterprise and BYOC pick, Blaxel is the agent-native persistent sandbox pick, and Modal is the Python-first serverless compute and GPU pick. The right answer depends less on “can it run code?” and more on where state, network access, compliance, and cost boundaries live. What does AI agent sandbox infrastructure mean in 2026? An AI agent sandbox used to mean a short-lived container where an LLM could run a Python snippet, maybe install a package, and return stdout. That is still useful, but it is no longer enough for serious agent products. ...

The AI agent API cost horror story in 2026 is not a single expensive prompt. It is usually a loop: an agent retries a tool, hands off to another agent, grows context, and keeps spending after dashboards have already warned you. The fix is hard runtime limits, not better vibes around prompt engineering. Why Are AI Agent API Cost Horror Stories Surging In 2026? AI agent costs are surging because the unit of failure changed. A chatbot request fails once. An agent request can fail for hours. ...

Browser MCP snapshot token cost is not the price of one accessibility tree. In practice, it is tool schema tokens, page snapshots, chat history, model output, retries, and browser runtime added together. The right budget number is dollars per completed task, not dollars per million tokens. What are browser MCP snapshots and why do they cost tokens? Browser MCP servers give an LLM a controlled way to inspect and operate a browser. Microsoft’s Playwright MCP is the clearest example: it lets a model interact with pages through structured accessibility snapshots instead of relying only on screenshots or a vision model. That is useful because the model can see buttons, links, roles, labels, and text in a machine-readable form. ...

GitHub Copilot SDK reached GA on June 2, 2026, and it is best understood as an embeddable agent runtime, not a chat wrapper. It gives your app Copilot’s planning, tool calling, file edits, streaming, multi-turn sessions, MCP, hooks, and tracing across TypeScript, Python, Go, .NET, Java, and Rust. I have built enough agent integrations to be suspicious of “SDK” announcements that are mostly a thin prompt API with a nicer package name. The GitHub Copilot SDK is different because it exposes the same runtime layer behind Copilot CLI: your application talks to an SDK client, the SDK talks to Copilot CLI server mode over JSON-RPC, and the runtime handles the agent loop. That matters when you need an agent to inspect files, request permissions, stream events, call tools, and stay useful across multiple turns. ...

If you’re building AI agents that execute code — whether it’s a coding agent running tests, a data analysis pipeline spinning up Python interpreters, or a multi-agent system that needs isolated environments per task — the sandbox you pick directly determines your cost structure, your latency profile, and how much state management code you have to write yourself. Three providers dominate this space in 2026: E2B, Modal, and Fly.io. Each one has a fundamentally different pricing model, cold start story, and persistence strategy. I’ve been running production agent workloads on all three for the past six months, and the differences are bigger than the marketing suggests. ...

I’ve been testing terminal emulators for AI agent workflows since early 2025, and most of them fall into one of two camps: either they’re a traditional terminal with AI features bolted on, or they’re a cloud-dependent IDE pretending to be a terminal. Hyperia, forked from Vercel’s Hyper project and built by a solo developer (kordlessagain / DeepBlue Dynamics), takes a third path that I think is worth paying attention to. ...

On June 25, 2026, BrowserAct hit #1 Product of the Day on Product Hunt and entered the weekly Top 3. That’s not surprising — the market for AI agent infrastructure is red-hot — but what’s interesting is why it won. BrowserAct didn’t win on better agent reasoning, faster model inference, or cheaper tokens. It won because it solves the problem that every AI agent hits at the last mile: the real web. ...

If your AI coding agent needs to read a web page, take a screenshot, or crawl a site, you have two options: run a local browser stack (Playwright, Puppeteer) or call a hosted browser API. Cloudflare’s Browser Rendering MCP server splits the difference — it gives you a managed browser in the cloud, exposed as MCP tools your agent can call directly. I’ve been testing all three Cloudflare browser paths — the official Browser Rendering MCP server, the @cloudflare/playwright-mcp Worker, and the CDP-based chrome-devtools-mcp setup — across Claude Code, Cursor, and OpenCode. Here’s what works, what doesn’t, and how to pick the right path. ...

SonarQube MCP Server is SonarSource’s official open-source bridge between AI coding agents and SonarQube’s code quality engine. Instead of context-switching to a browser dashboard or running CLI scans manually, your AI agent can query issues, check quality gates, analyze code snippets, review security hotspots, and even change issue status — all through MCP tool calls. Version 1.19.0 ships with 20+ tools, supports every major AI client from GitHub Copilot to Claude Code, and works with both SonarQube Cloud and self-hosted Server instances. ...

Agent Skills supply chain security means treating every SKILL.md, referenced file, script, and marketplace update as executable influence over your AI agent. In practice, skills are closer to npm packages or CI actions than documentation, because a small metadata change can redirect planning, tool use, file access, and data movement. Why did Agent Skills become a supply chain problem in 2026? I’ve found that teams adopt Agent Skills for the same reason they adopted package managers: reuse beats rebuilding every workflow by hand. A skill can package conventions for code review, deployment, incident response, design handoff, or data analysis. The format is intentionally lightweight, which is exactly why it spreads quickly across tools such as Claude Code, OpenAI Codex, Cursor, GitHub Copilot, Gemini CLI, VS Code, Windsurf, and OpenClaw-style marketplaces. ...