CSharpener - C# Code Analysis
Roslyn-based static analysis for C# solutions: call graphs, unused-code detection, impact analysis, HTML docs, Graphviz export.
Executable
Primary: Y:/CSharpDLLs/CSharpener/CSharpener.exe — use forward slashes for the exe path in bash; the --solution argument takes a normal Windows path. Don't search for the executable, use this path directly.
Fallback if Y: is unavailable — build from https://github.com/lawless-m/CSharpener with dotnet build -c Release; output is CSharpCallGraphAnalyzer\bin\Release\net9.0\win-x64\csharp-analyzer.exe.
Commands
"Y:/CSharpDLLs/CSharpener/CSharpener.exe" <command> --solution "<path>" --format console
| Command |
Purpose |
Extra options |
analyze |
Full analysis: call graph, unused methods, stats |
--include-call-graph (default true), --exclude-namespace |
unused |
Find unused methods with confidence levels |
--exclude-namespace |
callers |
Who calls a method |
--method, -m (partial name OK, case-insensitive) |
dependencies |
What a method calls |
--method, -m |
impact |
What breaks if a method is removed (direct/transitive callers, affected entry points) |
--method, -m |
document |
HTML docs with cross-referenced code and call graphs |
--output, -o (required), --include-unused, --include-tests |
Common options: --solution, -s (required, .sln or .csproj, absolute path), --format, -f (json default; console, dot/graphviz, html), --output, -o.
Confidence levels (unused)
| Level |
Meaning |
| High |
Private methods never called — safe to remove |
| Medium |
Internal methods not called within assembly — review |
| Low |
Public methods — might be external API, caution |
Environment notes
- Cache lives in
.csharpener-cache/ in the solution directory. First run is slow; subsequent runs fast. Delete the cache to force a refresh; it invalidates on file changes.
- For large solutions, use
--exclude-namespace "*.Tests,*.Test" or analyze individual projects.
- Reflection usage causes false positives in unused detection (the tool warns). DI registration patterns (AddTransient, AddScoped, etc.) are recognized.
- If "no methods found", run
dotnet build first — the solution may not compile.
1---2name: csharpener3description: Use when you need to find unused methods in a C# solution, trace who calls a method, assess removal impact before refactoring, or generate call-graph documentation/diagrams for C# code.4---56# CSharpener - C# Code Analysis78Roslyn-based static analysis for C# solutions: call graphs, unused-code detection, impact analysis, HTML docs, Graphviz export.910## Executable1112**Primary**: `Y:/CSharpDLLs/CSharpener/CSharpener.exe` — use forward slashes for the exe path in bash; the `--solution` argument takes a normal Windows path. Don't search for the executable, use this path directly.1314**Fallback** if Y: is unavailable — build from https://github.com/lawless-m/CSharpener with `dotnet build -c Release`; output is `CSharpCallGraphAnalyzer\bin\Release\net9.0\win-x64\csharp-analyzer.exe`.1516## Commands1718```bash19"Y:/CSharpDLLs/CSharpener/CSharpener.exe" <command> --solution "<path>" --format console20```2122| Command | Purpose | Extra options |23|---------|---------|---------------|24| `analyze` | Full analysis: call graph, unused methods, stats | `--include-call-graph` (default true), `--exclude-namespace` |25| `unused` | Find unused methods with confidence levels | `--exclude-namespace` |26| `callers` | Who calls a method | `--method, -m` (partial name OK, case-insensitive) |27| `dependencies` | What a method calls | `--method, -m` |28| `impact` | What breaks if a method is removed (direct/transitive callers, affected entry points) | `--method, -m` |29| `document` | HTML docs with cross-referenced code and call graphs | `--output, -o` (required), `--include-unused`, `--include-tests` |3031Common options: `--solution, -s` (required, .sln or .csproj, absolute path), `--format, -f` (json default; console, dot/graphviz, html), `--output, -o`.3233## Confidence levels (`unused`)3435| Level | Meaning |36|-------|---------|37| High | Private methods never called — safe to remove |38| Medium | Internal methods not called within assembly — review |39| Low | Public methods — might be external API, caution |4041## Environment notes4243- Cache lives in `.csharpener-cache/` in the solution directory. First run is slow; subsequent runs fast. Delete the cache to force a refresh; it invalidates on file changes.44- For large solutions, use `--exclude-namespace "*.Tests,*.Test"` or analyze individual projects.45- Reflection usage causes false positives in unused detection (the tool warns). DI registration patterns (AddTransient, AddScoped, etc.) are recognized.46- If "no methods found", run `dotnet build` first — the solution may not compile.
lawless-m