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Skills let you package a prompt, tools, files, and configuration into a named capability Claude can invoke on demand.
Skills are Anthropic's 2025 answer to the question 'how do I teach Claude to do a thing really well, once, and have it work every time?' A Skill is a directory containing a SKILL.md definition file, optional helper scripts, and any reference files Claude needs.
---
name: weekly-report
trigger: When the user asks for a weekly status report
---
# Weekly Report Skill
When invoked:
1. Read the last 7 days of entries from `journal/` using `tools/read-journal.sh`
2. Summarize into 5 bullets: wins, struggles, surprises, next-week, ask.
3. Write output to `out/report-YYYY-MM-DD.md`
4. Return the path and a 1-line summary.A minimal SKILL.md| Concept | What it is | Use when |
|---|---|---|
| Claude Project | A persistent chat context with shared files | Repeated conversations on the same topic |
| Skill | Packaged expertise — invoke on demand | Specialized tasks with well-defined I/O |
| MCP Server | A tool-provider Claude can connect to | Integrating external systems (DBs, APIs, file systems) |
Skills run inside the Claude environment. MCP servers run outside and expose tools. Projects are Claude's working memory. You often use all three.
15 questions · take it digitally for instant feedback at tendril.neural-forge.io/learn/quiz/end-latest-claude-skills-creators
What is the core idea behind "Claude Skills — reusable specialized agents"?
Which term best describes a foundational idea in "Claude Skills — reusable specialized agents"?
A learner studying Claude Skills — reusable specialized agents would need to understand which concept?
Which of these is directly relevant to Claude Skills — reusable specialized agents?
Which of the following is a key point about Claude Skills — reusable specialized agents?
Which of these does NOT belong in a discussion of Claude Skills — reusable specialized agents?
What is the key warning about "Scope your agents tightly" in the context of Claude Skills — reusable specialized agents?
Which statement accurately describes an aspect of Claude Skills — reusable specialized agents?
What does working with Claude Skills — reusable specialized agents typically involve?
Which best describes the scope of "Claude Skills — reusable specialized agents"?
Which of the following is a concept covered in Claude Skills — reusable specialized agents?
Which of the following is a concept covered in Claude Skills — reusable specialized agents?
Which of the following is a concept covered in Claude Skills — reusable specialized agents?
Which of the following is a concept covered in Claude Skills — reusable specialized agents?
Which of the following is a concept covered in Claude Skills — reusable specialized agents?