# mcp-server-excel Development Guidelines
Auto-generated from all feature plans. Last updated: 2025-12-19
## Active Technologies
- C# 14 / .NET 10.0 + ModelContextProtocol, Microsoft.Extensions.*, Application Insights (006-dotnet10-upgrade)
- N/A (Excel files managed via COM) (006-dotnet10-upgrade)
- Markdown/YAML (documentation only, no code) + None (static files following agentskills.io spec) (007-agent-skills)
- N/A (file-based skill package) (007-agent-skills)
- Markdown/YAML (documentation-only feature, no .NET code changes) + agentskills.io specification (YAML frontmatter + Markdown body) (007-agent-skills)
- File-based (`skills/excel-mcp/` directory at repo root) (007-agent-skills)
- C# / .NET 10 + Excel COM automation via `dynamic` + `ExcelMcp.ComInterop`, MCP SDK (`ModelContextProtocol`), `System.Text.Json`, CLI via `Spectre.Console.Cli` (001-rename-queries-tables)
## Project Structure
```text
src/
tests/
```
## Commands
# Add commands for C# / .NET 10
## Code Style
C# / .NET 10: Follow standard conventions
## Recent Changes
- 007-agent-skills: Added Markdown/YAML (documentation-only feature, no .NET code changes) + agentskills.io specification (YAML frontmatter + Markdown body)
- 007-agent-skills: Added Markdown/YAML (documentation-only feature, no .NET code changes) + agentskills.io specification (YAML frontmatter + Markdown body)
- 007-agent-skills: Added Markdown/YAML (documentation only, no code) + None (static files following agentskills.io spec)
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