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Skill vs Agent vs Model: Understanding the Relationship at a Glance

The Relationship Between Building Blocks, Builder, and Brain

Skill vs Agent vs Model

The Roles

🧠 Model = Brain

  • Provides language understanding and reasoning capabilities
  • Examples: GPT-4o, Claude 3.5, DeepSeek-R1
  • Itself cannot perform actions, only think and generate text

    • 🤖 Agent = Builder

  • Receives goals, plans steps, calls tools, completes tasks
  • Examples: Manus, Devin, OpenClaw, AutoGPT
  • Driving force comes from Model, execution power comes from Skill

    • 🧩 Skill / MCP Server = Building Block

  • Provides specific capabilities: search the web, read/write files, control browser
  • Examples: filesystem MCP, github MCP, brave-search MCP
  • Has no intelligence on its own; only becomes effective when called by Agent

    • Real-World Example

    Goal: Analyze competitors and generate a report

  • Model (Claude) → Understands intent, plans steps
  • Agent (Manus) → Decomposes task: search → analyze → write → output
  • Skills call sequence: brave-search → fetch → filesystem (save results)

    • Also available in 中文.