What problem does it solve?
Skill creation becomes slow and inconsistent when you lack a repeatable process for planning, writing Anthropic Agent Skills, validating triggers, and iterating to quality.
Core Features & Use Cases
- End-to-end skill development guidance: Plan use cases, define success criteria, and implement a high-quality SKILL.md structure aligned with Agent Skills expectations.
- Trigger-accuracy and iteration workflow: Improve under-triggering or over-triggering using targeted evaluation prompts and feedback-driven refinement.
- Operational correctness for portability: Ensure skills follow conventions like kebab-case folder naming, required YAML frontmatter fields, and progressive disclosure so the skill works across Claude surfaces.
Use Case Example: You want to create a new skill that turns a user’s project requirements into a structured plan and reusable deliverables, and you need a reliable method to write the right description triggers, instructions, and testing loop.
Quick Start
Use the skill-builder skill when you are asked to create a new skill or improve an existing one so you can generate a correct SKILL.md with proper triggers, instructions, and an iteration plan.