Claude Skills Guide

How Do I Know Which Claude Skill Is Currently Active?

When working with Claude Code and its skill system, knowing which skill is currently active helps you understand how Claude will interpret your requests. The skill system transforms Claude’s behavior based on the loaded instructions, and recognizing the active context prevents miscommunication and improves workflow efficiency.

This guide covers practical methods to identify the active skill during your Claude Code sessions.

Understanding Claude Skills Context

Claude skills are Markdown files stored in ~/.claude/skills/ that contain instructions Claude follows when processing your requests. When you invoke a skill using its slash command (like /pdf or /tdd), Claude loads those instructions and applies them to your current conversation. Without an active skill, Claude uses its default behavior.

The skill context affects how Claude:

Methods to Identify the Active Skill

Check the Conversation Header

When you start Claude Code, the initial system message displays loaded skills. Look at the first few messages in your session—the system typically announces which skills are active.

➜ claude

Claude Code: Hey. To get started, I can help you with writing, code, and much more.
Loaded skills: tdd, frontend-design

If you see skill names listed after “Loaded skills,” those are currently active.

Ask Claude About Active Skills

You can ask Claude directly about its current context and which skills are active:

Which skill are you currently using?

Claude will respond with the name of the active skill if one was invoked in the session. You can also verify what skills are installed by checking the skills directory.

Inspect the Current Context

You can ask Claude to confirm its current instructions:

What instructions are currently guiding your behavior?

Claude will describe the active skill context if one is loaded. This method works well when you want a quick confirmation without navigating away from your task.

Check Skill File Presence

When a skill is active, certain behaviors change based on the skill’s instructions. You can also verify skills by checking which files exist in your skills directory:

ls ~/.claude/skills/

This shows all installed skills. The presence of a skill file doesn’t guarantee it’s active, but knowing which skills you have installed helps you recognize when behavior changes.

Common Skill Indicators

Different skills produce recognizable patterns in Claude’s responses:

The TDD Skill

When the tdd skill is active, Claude structures responses around test cases. You’ll notice:

Example prompt with active TDD skill:

Write a function that validates email addresses

Claude responds with test cases first, then implementation.

The PDF Skill

With the pdf skill loaded, Claude becomes proficient in PDF operations:

The skill activates PDF-specific capabilities in file operations.

The Frontend-Design Skill

The frontend-design skill changes how Claude approaches UI work:

You’ll see different questions about design requirements before generating code.

The Super Memory Skill

When supermemory is active, Claude:

This skill changes Claude’s memory management approach.

Practical Workflow Examples

Confirming Skill Before Complex Tasks

Before refactoring critical code, verify your active skill by asking Claude:

Which skill are you currently using?

If you’re about to write tests but haven’t invoked the tdd skill yet, switch to /tdd first:

/tdd
Now let's refactor the authentication module

Switching Skills Mid-Session

You can change skills at any time:

/pdf
Extract all tables from this financial report

Then switch to another skill:

/tdd
Now write tests for the parsing logic

Each skill command replaces the previous context.

Combining Skills Effectively

Some workflows benefit from skill combinations. After extracting data with /pdf, switch to /tdd to test your parsing code:

/pdf
Extract the data from report.pdf

/tdd
Write tests for the extracted data parser

The transition preserves context from the previous skill’s work.

Troubleshooting Skill Confusion

If Claude’s responses seem misaligned with your expectations:

  1. Ask Claude “Which skill are you using?” to verify the active skill
  2. Check recent commands — you may have accidentally activated a different skill
  3. Re-invoke the correct skill explicitly with /skillname
  4. Start a new session if context becomes confused

Remember that skills only affect Claude’s behavior within your current session. Each new Claude Code invocation starts fresh unless you restore a previous session.

Best Practices

Understanding your active skill context transforms Claude Code from a general-purpose AI assistant into a specialized tool that adapts to your specific needs. Whether you’re writing tests with the tdd skill, handling documents with the pdf skill, or building interfaces with frontend-design, knowing which skill is active puts you in control of your workflow.

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