Builder notes.

Practical guides to building with AI, with examples you can explore. Pick the question on your mind.

Plugins: 2 articlesClear filter

MCP, skills and plugins: how are they different?

A shopping example to explain what MCP, skills, and plugins add to an agent, and when you might need them.

Rajat23 Sept 20269 min + explore

calendar-assistant/
├─ .codex-plugin/plugin.json
├─ skills/find-time/SKILL.md
└─ .mcp.json

I installed a plugin. What did I actually install?

Unpack instructions and connections, then compare plugins in Codex, Claude Code, and DeepSeek Harness. Understand installation, account access, and action approval.

Rajat23 Sept 20265 min + explore

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