Claude Skills vs Projects vs MCP vs Custom Instructions: What To Use When
July 2026 · 9 min read
Quick answer
Use Claude Projects for persistent workspace context, Skills for reusable task packages, MCP for connecting tools and data sources, and custom instructions for broad preferences. Use ClaudeKit when you need browser-side workflow features like saved prompts, usage tracking, reset timers, and conversation forking.
The Short Decision Table
| Option | Best for | Example |
|---|---|---|
| Projects | Persistent context for one work area | A product, client, course, or research folder. |
| Skills | Reusable workflows and task expertise | A reporting workflow with instructions and templates. |
| MCP | External tools and live data | GitHub, docs, databases, files, or internal systems. |
| Custom instructions | General preferences | Tone, formatting, defaults, or role context. |
| ClaudeKit | Claude.ai workflow control | Usage tracking, prompts, exports, token counts, forks. |
When To Use Claude Skills
Skills are strongest when a task repeats and needs more than a prompt. A skill can package instructions, reference files, scripts, and a clear workflow so Claude can perform the same job consistently.
Use Skills for reports, document transformations, code review styles, launch checklists, data-cleaning workflows, or any task where you keep pasting the same context.
When To Use MCP
MCP is for connecting Claude to external context and actions. If Claude needs to read a private repo, query a database, inspect a file system, or use a tool, MCP can be the right layer.
Do not use MCP when a saved prompt would do. More power also means more permission and security decisions.
Where ClaudeKit Fits
ClaudeKit does not replace Projects, Skills, or MCP. It improves the browser experience around Claude.ai: tracking usage, inserting saved prompts, exporting chats, counting tokens, and forking conversations.
The best workflow is often layered: Project for context, Skill for repeatable method, MCP for data, and ClaudeKit for browser-side speed.
Sources and further reading
- Anthropic Help: What are Skills?
- Anthropic: Model Context Protocol
- Anthropic: Steering Claude Code
- Claude Code docs: Extend Claude Code
- Claude Code docs: How Claude Code works
FAQ
Are Claude Skills the same as Projects?
No. Projects organize persistent context for a workspace, while Skills package reusable workflows and instructions for specific tasks.
Is MCP better than Claude Skills?
MCP and Skills solve different problems. MCP connects tools and data; Skills package reusable expertise and workflows.
Where does ClaudeKit fit with Claude Skills?
ClaudeKit adds browser workflow features for Claude.ai, including prompt reuse, usage tracking, reset timers, exports, token counting, and conversation forking.
Claude power users
Use Claude harder without losing your place.
ClaudeKit adds usage tracking, reset timers, saved prompts, exports, and conversation forking to Claude.ai.
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