#agentic-ai

Prompt engineering was the 2023 job that mostly meant typing nicely at a chatbot. In 2025 Karpathy and Shopify's CEO renamed the real version of it — context engineering — and the rename was a promotion.

Three protocols showed up to standardise agentic AI — MCP for agent-to-tool, A2A for agent-to-agent, ACP for lightweight agent messaging. One of them is already dead.

'Agentic' was the word of the year, and Gartner reckons only about 130 of the thousands of vendors selling agents are shipping one. Here is the precise definition — a loop with tools, planning, state, and retry — the line that separates a real agent from a single LLM call wearing a cost...

The Model Context Protocol went from an Anthropic side-project in November 2024 to 97 million monthly SDK downloads by March 2026. Here is what it actually is — JSON-RPC, three primitives, a client-server split — why it won by turning M×N integrations into M+N, and why just a protocol...

Apple's "do not hallucinate" prompt is funny. The same logic is why AI-written + AI-reviewed pipelines silently approve bugs, why long contexts compound errors, and why the real guardrails are deterministic.

Cursor, Kiro, Windsurf, Antigravity, Trae. All forks of VS Code, all wrapping one of three model APIs, all selling a long system prompt that does not move the model's ceiling. The vibe-coding tech-debt numbers were always pointing somewhere else.