Compound Tools

Compound tools aggregate multiple queries into a single MCP call, reducing agent round-trips and token consumption. Each replaces 3-4 individual tool calls.

analyze_method

Returns a method's signature, callers, dependency graph, and complexity metrics in a single call.

Parameters

Name	Type	Required	Description
methodName	string	yes	Name of the method to analyze
className	string	no	Containing class to disambiguate overloads
depth	int	no	Dependency graph depth (default 2)

What it combines

Sub-result	Equivalent standalone tool
Detail	get_symbol_detail
Callers	find_callers
Dependencies	get_dependency_graph
Complexity	get_complexity_metrics

Example response

{
  "Detail": {
    "Name": "ExecuteAsync",
    "Kind": "Method",
    "FullSignature": "RoslynLens.FindSymbolTool.ExecuteAsync(...)",
    "ReturnType": "Task<string>",
    "Parameters": [
      { "Name": "workspace", "Type": "WorkspaceManager" },
      { "Name": "name", "Type": "string" }
    ]
  },
  "Callers": {
    "Symbol": "...",
    "Callers": [
      { "Method": "Main", "ContainingType": "Program", "File": "Program.cs", "Line": 12 }
    ],
    "Total": 1
  },
  "Dependencies": {
    "Root": { "Symbol": "ExecuteAsync", "Calls": [...] },
    "Depth": 2
  },
  "Complexity": {
    "Cyclomatic": 4,
    "Cognitive": 6,
    "MaxNesting": 2,
    "LogicalLoc": 25
  }
}

When to use

• Starting to understand an unfamiliar method
• Before refactoring — assess complexity and impact
• Code review — check who calls what and how complex it is

---

get_type_overview

Returns a type's public API, hierarchy, implementations, and diagnostics in a single call.

Parameters

Name	Type	Required	Description
typeName	string	yes	Name of the type to analyze

What it combines

Sub-result	Equivalent standalone tool
Api	get_public_api
Hierarchy	get_type_hierarchy
Implementations	find_implementations (interfaces only)
Diagnostics	get_diagnostics (file-scoped)

Example response

{
  "Api": {
    "Type": "RoslynLens.WorkspaceManager",
    "Members": [
      { "Name": "LoadSolutionAsync", "Kind": "method", "Signature": "..." },
      { "Name": "GetCompilationAsync", "Kind": "method", "Signature": "..." },
      { "Name": "State", "Kind": "property", "ReturnType": "WorkspaceState" }
    ],
    "Total": 8
  },
  "Hierarchy": {
    "Type": { "Name": "WorkspaceManager", "Kind": "class" },
    "BaseTypes": [],
    "Interfaces": [{ "Name": "IDisposable", "Kind": "interface" }],
    "DerivedTypes": []
  },
  "Implementations": null,
  "Diagnostics": { "Diagnostics": [], "Total": 0, "Scope": "file" }
}

When to use

• First encounter with a type — understand its shape quickly
• Reviewing an interface — see who implements it
• Checking for compiler issues on a specific type

---

get_file_overview

Returns all types defined in a file, compiler diagnostics, and anti-pattern violations in a single call.

Parameters

Name	Type	Required	Description
filePath	string	yes	File path or suffix (e.g., WorkspaceManager.cs)

What it combines

Sub-result	Equivalent standalone tool
Types	(custom — lists type declarations)
Diagnostics	get_diagnostics (file-scoped)
AntiPatterns	detect_antipatterns (file-scoped)

Example response

{
  "File": "/src/RoslynLens/WorkspaceManager.cs",
  "Types": [
    { "Name": "WorkspaceManager", "Kind": "class", "Line": 11 }
  ],
  "Diagnostics": { "Diagnostics": [], "Total": 0, "Scope": "file" },
  "AntiPatterns": {
    "Violations": [
      {
        "Id": "AP005",
        "Severity": "Warning",
        "Message": "Broad catch without re-throw",
        "File": "WorkspaceManager.cs",
        "Line": 173,
        "Suggestion": "Catch specific exceptions or re-throw"
      }
    ],
    "Total": 1
  }
}

When to use

• Opening a file for the first time — get the lay of the land
• Pre-commit check — any compiler warnings or anti-patterns?
• Code review — quick quality assessment of a file