I've created a Claude Code Slash command /tools-used for myself, to check whether certain skills or MCPs were actually used during the execution of the prompt.
Here's the prompt, you may copy and paste it into Claude Code, just as a prompt:
List all MCP tools and Claude skills that were used in the last user prompt. Present them in a clear, organized format:
## MCP Tools
- List each MCP tool that was called (e.g., mcp__laravel-boost__database-schema, mcp__codex__codex)
- Include the parameters used if relevant
- Separately here, list MCP servers that exist in this project but were NOT used
## Skills
- List any skills that were invoked using the Skill tool
- Separately here, list skills that exist in this project but were NOT used
If no tools, agents, or skills were used in the last prompt, state that clearly.
But you can also put this into ~/.claude/commands/tools-used.md and then run it from Claude Code as /tools-used.
I also demonstrated this prompt/command in a YouTube video:
