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julien-mcp-excel

73
C

Install Excel MCP server via uvx. Use when user needs Excel file manipulation capabilities.

Marketplace

Third-Party Agent Skill: Review the code before installing. Agent skills execute in your AI assistant's environment and can access your files. Learn more about security

Installation for Agentic Skill

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skilz install theflysurfer/claude-skills-marketplace/julien-mcp-excel
skilz install theflysurfer/claude-skills-marketplace/julien-mcp-excel --agent opencode
skilz install theflysurfer/claude-skills-marketplace/julien-mcp-excel --agent codex
skilz install theflysurfer/claude-skills-marketplace/julien-mcp-excel --agent gemini

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Works with 14 AI coding assistants

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Extract and copy to ~/.claude/skills/ then restart Claude Desktop

1. Clone the repository:
git clone https://github.com/theflysurfer/claude-skills-marketplace
2. Copy the agent skill directory:
cp -r claude-skills-marketplace/archive/mcp-skills-individual/julien-mcp-excel ~/.claude/skills/
View on GitHub

Need detailed installation help? Check our platform-specific guides:

Claude Desktop Guide Claude Code Guide Troubleshooting

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Agentic Skill Details

Owner
theflysurfer (GitHub)
Repository
claude-skills-marketplace
Type
Non-Technical
Meta-Domain
productivity
Primary Domain
excel
Market Score
73
Agentic Skill Grades →

Agent Skill Grade

C
Score: 73/100 Click to see breakdown

Score Breakdown

Spec Compliance
11/15
PDA Architecture
20/30
Ease of Use
19/25
Writing Style
7/10
Utility
13/20
Modifiers: +3

Areas to Improve

  • Missing verification step
  • Duplicate JSON examples
  • Missing merge conflict handling

Recommendations

  • Add trigger phrases to description for discoverability
  • Add table of contents for files over 100 lines

Graded: 2026-01-05

Developer Feedback

I took a look at your julien-mcp-excel skill and wanted to share some thoughts.

Links:

The TL;DR

You're at 73/100, which puts you solidly in C territory. This is based on Anthropic's best practices for skill structure and clarity. Your Ease of Use is your strongest pillar (19/25) — the trigger phrases and workflow are pretty clear. Where you're losing points is in Progressive Disclosure (20/30) and Utility (13/20) — some redundancy in the examples and missing verification steps after installation.

What's Working Well

  • Clear triggers and discoverability — You've got three solid trigger phrases that cover the main use cases ("install excel mcp server", "add excel to .mcp.json", "set up excel for claude")
  • Good JSON examples — You provide complete, copy-paste-ready configuration, which is exactly what people need. The structure is grep-friendly and easy to follow
  • Proper naming conventions — Your hyphen-case naming follows the spec perfectly, and the metadata is valid YAML with no formatting issues

The Big One: Missing Verification After Installation

Right now, your Installation Procedure ends with "Restart Claude Code to activate the MCP server" — but there's no actual verification step. This is hurting your Utility score because users have no way to confirm it worked.

The fix: Add a Step 4 that explicitly tells users to verify installation:

Step 4: Verify installation by running `/mcp` and confirming the 'excel' server appears in the list.

This is a quick addition (~1 line) that would add +2 points and makes your skill significantly more useful in practice.

Other Things Wort...

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