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About prompt
The Agent Skill Designer is a specialized prompt template for designing portable, reusable skills that AI agents can load on demand without bloating their default context. Developed with insights from Anthropic and Google's agent documentation, this prompt guides the creation of skill definitions that include clear entry/exit conditions, operational knowledge, decision rules, safety constraints, and verification checklists. The output is a structured SKILL.md file that encodes a narrow responsibility workflow, optimized for execution in agent repositories. It emphasizes minimizing context load, tool awareness, and domain-specific mistake encoding.
Key Features
Encodes a narrow responsibility with clear entry and exit conditions
Includes operational knowledge such as task sequence and decision rules
Minimizes context load by excluding transient state and generic filler
Specifies when to use or not use tools, with verification steps
Outputs a structured SKILL.md in plain Markdown
Prioritizes checklists and decision rules over prose
Enforces domain-specific mistake avoidance
Optimized for reuse across repositories
Pros & Cons
Pros
- Reduces agent context bloat by loading skills on demand
- Includes actionable safety rules and verification checklists
- Provides a concrete workflow template for consistency
- Encodes domain-specific pitfalls to avoid
- Optimized for reuse and portability
Cons
- Requires familiarity with agent frameworks and skill architectures
- Output is a text definition, not executable code
- May need adaptation to specific agent platforms
- Not a ready-to-use agent; requires integration
Best For
Creating reusable skill definitions for AI agents in production systemsStandardizing agent workflows across teams or repositoriesPackaging expertise for on-demand agent loadingDesigning safe and verifiable agent behaviors
FAQ
What is the Agent Skill Designer prompt used for?
It is used to design portable skills that AI agents can load on demand, guiding the creation of a structured SKILL.md file with workflow, safety rules, and verification steps.
What frameworks are referenced in this prompt?
The prompt references Anthropic Agent Skills Docs (platform.claude.com), Anthropic Equipping Agents for the Real World (anthropic.com), and Google Building ADK Agents with Skills (developers.googleblog.com).
What sections does the skill output require?
The output must include: Skill Name, Purpose, When to Use, When NOT to Use, Inputs Expected, Required Tools or Capabilities, Workflow, Safety Rules, Verification Checklist, Output Contract, and Failure/Escalation Conditions.
Is this prompt executable code?
No, it is a prompt template that generates a Markdown file (SKILL.md) containing guidelines for agent behavior, not executable code.