What Are Agent Skills? A Practical Guide to SKILL.md Files
Agent Skills and SKILL.md files are becoming one of the most useful ways to teach AI agents repeatable workflows. Here is what they are, what they are not, and how to create your first one.


Agent Skills and SKILL.md files are becoming one of the most useful ways to teach AI agents repeatable workflows. Here is what they are, what they are not, and how to create your first one.
MCP is the open standard that lets AI agents connect to external tools, data, and workflows. Here is the simple explanation developers need, with practical examples.
Static API keys and long-lived secrets are dying out. SPIFFE is the open standard quietly replacing them, and it's quickly becoming the foundation for how AI agents prove who they are. Here's what SPIFFE actually is, broken down for any developer.
Andrej Karpathy's Software 3.0 idea explains why AI is not just another developer tool. It is a new programming layer built around prompts, context, agents, and human verification.