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Csharp Project Expert by majiayu000

Name: Csharp Project Expert
Rating: 4.2 (5 reviews)
Author: majiayu000

Csharp Project Expert

ALWAYS use for ANY C# operation: renaming (files/classes/methods/properties/namespaces), finding references/usages ("where is X used"), finding definitions ("where is X defined"), understanding code structure (hierarchies/dependencies/relationships). Roslyn-powered semantic analysis ensures all references are updated correctly across the entire solution.

majiayu000 5c4a896 2 files · 4.9 KB Updated Sep 9, 2026 567 repo stars

File contents

C# Project Expert

Compiler-accurate semantic analysis for C# using Roslyn APIs. Not text search - understands C# semantics.

When to Use

Use this skill for:

Finding symbol definitions (classes, methods, interfaces, properties)
Finding all references before refactoring
Safe renaming across entire solution (always preview first!)
Understanding method signatures and type hierarchies
Checking compilation errors/warnings
Finding interface implementations
Analyzing method call chains (callers/callees)
Finding unused code

Don't use for: Non-C# files, simple text/comment searches, projects without .sln/.csproj

CLI Path (Cross-Platform)

Platform	Path
Linux x64	`./scripts/linux-x64/csharp-skill`
macOS x64	`./scripts/osx-x64/csharp-skill`
macOS ARM	`./scripts/osx-arm64/csharp-skill`
Windows x64	`./scripts/win-x64/csharp-skill.exe`

Command Syntax

<cli-path> [-s <solution.sln> | -p <project.csproj>] [-o json|text|markdown] <command> [options]

Auto-Discovery: If -s or -p is not specified, the tool automatically searches the current directory for a .sln file (preferred) or .csproj file.

All Commands (18)

Command	Purpose	Key Options
`find-definition <name>`	Where is symbol defined	`--type class
`find-references <name>`	All usages of symbol	`--type`, `--in-namespace`
`rename <old> <new>`	Rename across solution	`--preview` (use first!), `--type`, `--rename-file`
`signature <name>`	Method/type signature	`--include-overloads`, `--include-docs`
`list-members <type>`	Members of a type	`--kind method
`diagnostics`	Compilation errors/warnings	`--severity error
`check-symbol-exists <name>`	Verify symbol exists	`--type`
`find-implementations <name>`	Interface implementations	-
`inheritance-tree <type>`	Type hierarchy	`--direction ancestors
`find-callers <method>`	Who calls this method	-
`find-callees <method>`	What does method call	-
`dependencies <target>`	Type/file dependencies	-
`unused-code`	Find dead code	-
`generate-interface <class>`	Extract interface	-
`implement-interface <iface>`	Generate stubs	-
`list-types`	Types in namespace/file	`--namespace`
`namespace-tree`	Namespace hierarchy	-
`analyze-file <path>`	Quick file analysis	-

Critical Workflows

Safe Rename (Always Follow)

Check usage: find-references OldName --type method
Preview changes (REQUIRED): rename OldName NewName --type method --preview
Apply: rename OldName NewName --type method
When renaming classes/types: Add --rename-file to also rename the file
Verify: diagnostics --severity error

Understand Unknown Code

What is it? find-definition ClassName --type class
What can it do? list-members ClassName
How does it fit? inheritance-tree ClassName
What does it need? dependencies ClassName

Output Formats

json (default) - Machine-readable
text - Human-readable terminal
markdown - Documentation format

Requirements

.NET 10.0 runtime
Valid .sln or .csproj file
Solution must compile

Exit Codes

0 Success | 1 Error | 2 Not found

Detailed References

COMMANDS.md - Full command reference
WORKFLOWS.md - Step-by-step workflows
EXAMPLES.md - Real-world scenarios

---name: csharp-project-expertdescription: ALWAYS use for ANY C# operation: renaming (files/classes/methods/properties/namespaces), finding references/usages ("where is X used"), finding definitions ("where is X defined"), understanding code structure (hierarchies/dependencies/relationships). Roslyn-powered semantic analysis ensures all references are updated correctly across the entire solution.--- # C# Project Expert Compiler-accurate semantic analysis for C# using Roslyn APIs. **Not text search** - understands C# semantics. ## When to Use **Use this skill for:** - Finding symbol definitions (classes, methods, interfaces, properties) - Finding all references before refactoring - Safe renaming across entire solution (always preview first!) - Understanding method signatures and type hierarchies - Checking compilation errors/warnings - Finding interface implementations - Analyzing method call chains (callers/callees) - Finding unused code **Don't use for:** Non-C# files, simple text/comment searches, projects without .sln/.csproj ## CLI Path (Cross-Platform) | Platform | Path | |----------|------| | Linux x64 | `./scripts/linux-x64/csharp-skill` | | macOS x64 | `./scripts/osx-x64/csharp-skill` | | macOS ARM | `./scripts/osx-arm64/csharp-skill` | | Windows x64 | `./scripts/win-x64/csharp-skill.exe` | ## Command Syntax ``` <cli-path> [-s <solution.sln> | -p <project.csproj>] [-o json|text|markdown] <command> [options] ``` **Auto-Discovery:** If `-s` or `-p` is not specified, the tool automatically searches the current directory for a `.sln` file (preferred) or `.csproj` file. ## All Commands (18) | Command | Purpose | Key Options | |---------|---------|-------------| | `find-definition <name>` | Where is symbol defined | `--type class|method|property|interface` | | `find-references <name>` | All usages of symbol | `--type`, `--in-namespace` | | `rename <old> <new>` | Rename across solution | `--preview` (use first!), `--type`, `--rename-file` | | `signature <name>` | Method/type signature | `--include-overloads`, `--include-docs` | | `list-members <type>` | Members of a type | `--kind method|property|field`, `--accessibility` | | `diagnostics` | Compilation errors/warnings | `--severity error|warning`, `--file`, `--code` | | `check-symbol-exists <name>` | Verify symbol exists | `--type` | | `find-implementations <name>` | Interface implementations | - | | `inheritance-tree <type>` | Type hierarchy | `--direction ancestors|descendants|both` | | `find-callers <method>` | Who calls this method | - | | `find-callees <method>` | What does method call | - | | `dependencies <target>` | Type/file dependencies | - | | `unused-code` | Find dead code | - | | `generate-interface <class>` | Extract interface | - | | `implement-interface <iface>` | Generate stubs | - | | `list-types` | Types in namespace/file | `--namespace` | | `namespace-tree` | Namespace hierarchy | - | | `analyze-file <path>` | Quick file analysis | - | ## Critical Workflows ### Safe Rename (Always Follow) 1. Check usage: `find-references OldName --type method` 2. Preview changes (REQUIRED): `rename OldName NewName --type method --preview` 3. Apply: `rename OldName NewName --type method` 4. **When renaming classes/types**: Add `--rename-file` to also rename the file 5. Verify: `diagnostics --severity error` ### Understand Unknown Code 1. What is it? `find-definition ClassName --type class` 2. What can it do? `list-members ClassName` 3. How does it fit? `inheritance-tree ClassName` 4. What does it need? `dependencies ClassName` ## Output Formats - `json` (default) - Machine-readable - `text` - Human-readable terminal - `markdown` - Documentation format ## Requirements - [.NET 10.0 runtime](https://dotnet.microsoft.com/download/dotnet/10.0) - Valid .sln or .csproj file - Solution must compile ## Exit Codes - `0` Success | `1` Error | `2` Not found ## Detailed References - [COMMANDS.md](references/COMMANDS.md) - Full command reference - [WORKFLOWS.md](references/WORKFLOWS.md) - Step-by-step workflows - [EXAMPLES.md](references/EXAMPLES.md) - Real-world scenarios

Frequently asked questions