Field Notes for builders who actually ship.

Google Android CLI Guide: Build with AI Agents 3x Faster (2026)

Google rebuilt Android development tooling for AI agents in April 2026 — a CLI that cuts token usage by 70% and completes tasks 3x faster, paired with a modular SKILL.md system that gives agents precise instructions for complex migrations and a real-time Knowledge Base that keeps agents accurate on 2026 APIs.

6d ago

Cursor 3: The Agent-First IDE That Reimagines How Developers Work

Cursor 3 is not a version bump — it is a completely rebuilt product. Launched April 2, 2026, the new interface replaces the Composer pane with a dedicated Agents Window, enables parallel agent execution across local, cloud, and worktree environments, and adds a 30-plugin marketplace. Here is everything developers need to know.

Databricks Unity AI Gateway: MCP and Agent Governance Guide 2026

Databricks expanded its AI Gateway into Unity AI Gateway in April 2026, bringing MCP server governance, on-behalf-of user execution, and end-to-end MLflow tracing to enterprise AI agents. Here is the complete developer guide.

Grok 4.3 Beta: Developer Guide to xAI's Video, Documents & Voice APIs (2026)

xAI released Grok 4.3 Beta on April 17, 2026, adding three major capabilities: native document generation (PDFs, spreadsheets, slide decks), conversational video understanding, and standalone Speech-to-Text and Text-to-Speech APIs priced significantly below every comparable service on the market.

OpenAI Codex "For (Almost) Everything": Computer Use, 90+ Plugins, and the April 2026 Update Explained

On April 16, 2026, OpenAI shipped “Codex for (almost) everything” — a major update that lets Codex see, click, and type on your Mac, browse live pages, generate images, and remember your preferences across sessions. Here is what every developer needs to know.

OpenAI Agents SDK April 2026: Sandbox, Harness and Long-Running Agents

The April 2026 OpenAI Agents SDK update introduces native sandbox execution across seven cloud providers, a standardized harness with AGENTS.md support, and automatic state snapshotting for long-running agents.

Tutorials10 min

Graphify: Turn Any Codebase into a Knowledge Graph in 2026

Graphify is the fastest-growing AI coding skill of 2026 — 28k GitHub stars in two weeks. It turns any folder of code, docs, or papers into a queryable knowledge graph that cuts AI token usage by 71.5x.

Vibe Coding in 2026: The Complete Developer Guide to AI-First App Building

MIT Technology Review named vibe coding one of the 10 Breakthrough Technologies of 2026. Here is the complete developer guide to tools, workflow, and shipping to production — the right way.

Tutorials10 min

Harness Engineering 2026: The Key to Reliable AI Coding Agents

OpenAI engineers shipped a million lines of production code without typing a single line manually. The discipline that made it possible — harness engineering — is now the highest-leverage skill in AI-assisted development.

Google ADK for TypeScript: Build Multi-Agent Systems in 2026

Google's Agent Development Kit for TypeScript is the most complete open-source framework for building multi-agent systems in 2026 — type-safe, A2A-compatible, and production-ready.

Tutorials12 min

Computer Use AI Agents 2026: Browser and Desktop Automation Guide

Claude Computer Use, OpenAI Operator, and Gemini automate browsers in 2026. Real failure modes, cost breakdown, production patterns, and a go/no-go framework fo

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Tutorials11 min

Gemini 3.1 Ultra 2M Context Window: Developer Guide 2026

Google Gemini 3.1 Ultra ships the largest publicly available context window at 2M tokens. Complete developer guide: real use cases, cost math, and API code.

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