Claude Agent Skills
Published on: 29 October 2025
Tags: #claude #agent-skills
The Claude Ecosystem: A Modular "Building Block" Architecture
graph TD
subgraph "The Claude Ecosystem"
direction TB
A["Claude (Core Intelligence/The Brain)"] -- "Directs & Uses" --> BB;
subgraph BB [Building Blocks]
direction TB
B["Skills
(Instruction Manuals
'How to do it')"];
C["MCPs/Tools
(External Capabilities
'What can be done')"];
end
BB -- "Are combined within" --> D["Project
(Dedicated Workspace)"];
D -- "Results in" --> E["Specific Ongoing Work
(e.g., Q3 Marketing Campaign)"];
end
%% Styling
style A fill:#c9c9ff,stroke:#333,stroke-width:2px
style D fill:#e0d4ff,stroke:#333,stroke-width:2px
style E fill:#f9f9f9,stroke:#333,stroke-width:1px
What is a Claude Skill?
graph TD
subgraph "What is a Claude Skill?"
direction TB
subgraph B [ ]
direction TB
B1["Instructions & Workflow
(e.g., Step-by-step process)"]
B2["Tools to Use
(e.g., Ahrefs MCP, Notion)"]
B3["Resources & Standards
(e.g., Brand Guidelines)"]
end
B -- "Are packaged into" --> C{"Claude Skill
(Reusable Manual)"};
C -- "Enables" --> D["Consistent & Automated
Task Execution"];
end
%% Styling to make the 'Skill' container visually distinct
style B fill:#f0e6ff,stroke:#9673d3,stroke-width:2px,stroke-dasharray: 5 5
How Skills Solve Portability Issues
graph LR
subgraph "How Skills Solve Portability: Before vs. After"
subgraph "After: Skills are Portable & Reusable"
direction TB
S["Reusable Skill"]
P3["Project A"] -- "Uses" --> S;
P4["Project B"] -- "Uses" --> S;
P5["Any New Chat"] -- "Uses" --> S;
style S fill:#e0ffe0,stroke:#0b0
end
subgraph "Before: Instructions are Trapped"
direction TB
subgraph P1 [Project A]
I1["Instructions"]
end
P2["Project B"] -- "Cannot Access" --x P1;
style I1 fill:#ffe0e0,stroke:#b00
end
end
How Skills Solve Stackability Issues
graph LR
subgraph "How Skills Solve Stackability: Before vs. After"
subgraph "After: Skills are Stackable Building Blocks"
direction TB
CS["Copywriting Skill"] --> NTP2["New Task Project"];
AS["Analysis Skill"] --> NTP2;
NTP2 ==> CO["Combined Output"];
end
subgraph "Before: Projects are Isolated"
direction TB
subgraph P1 [Copywriting Project]
I1["Instructions"]
end
subgraph P2 [Analysis Project]
I2["Instructions"]
end
NTP["New Task Project"]
NTP -- "Wants to combine, but cannot" --x P1
NTP -- "Wants to combine, but cannot" --x P2
end
end
%% Styling
style P1 fill:#fde7e7,stroke:#b00
style P2 fill:#fde7e7,stroke:#b00
style CS fill:#e0ffe0,stroke:#0b0
style AS fill:#e0ffe0,stroke:#0b0
The Three Types of Claude Skills
mindmap
root((Claude Skills))
::icon(fa fa-cogs)
Official Skills
::icon(fa fa-check-circle)
Built by Anthropic
(e.g., theme-factory, skill-creator)
Custom Skills
::icon(fa fa-user-edit)
Created by You
(e.g., branded-deck, keyword-research)
Community-Created
::icon(fa fa-users)
Shared by other users
(Use with caution)