Find Unused Symbols

find-unused-symbols · Query · CorePlugin · Code analysis

Returns candidate unused locals and members from compiler diagnostics.

Availability: Built in and published in every operational mode.

Generated from Roslyn Workbench MCP 1.0.0 (1.0.0).

Behaviour annotations

Annotation	Value
`destructiveHint`	`false`
`idempotentHint`	`true`
`openWorldHint`	`false`
`readOnlyHint`	`true`
`title`	`"Find Unused Symbols"`

Request

Property	Type	Required	Description
`scope`	`object \| null`	No	The optional search scope.
`includeInternal`	`boolean`	No	Whether internal members should be included.
`excludeGenerated`	`boolean`	No	Whether generated files should be excluded.
`candidatesLimit`	`integer \| null`	No	Maximum number of results to return.
`workspace`	`object \| null`	No	Provide workspaceId, alias, path, or any combination.

Response

Success response

Property	Type	Required	Description
`ok`	`boolean constant (true)`	Yes	Whether the tool invocation succeeded.
`data`	`object \| null`	Yes	Tool-specific result payload.
`snapshot`	`object`	Yes	Exact immutable workspace snapshot associated with the result, when available.
`warnings`	`array`	No	Non-fatal warnings the agent should consider.

Error response

Property	Type	Required	Description
`ok`	`boolean constant (false)`	Yes	Whether the tool invocation succeeded.
`error`	`object`	Yes	Structured error details when the invocation failed.
`continuation`	`oneOf`	No	Action the agent should take before retrying or continuing.
`diagnostics`	`array`	No	Diagnostics that explain the failed invocation.
`warnings`	`array`	No	Non-fatal warnings the agent should consider.

Error response

Property	Type	Required	Description
`ok`	`boolean constant (false)`	Yes	Whether the tool invocation succeeded.
`error`	`object`	Yes	Structured error details when the invocation failed.
`diagnostics`	`object`	Yes	Diagnostics that explain the failed invocation.
`reporting`	`object`	No	Error-reporting workflow available for an unhandled failure.

Bounded collections and continuation

These response locations publish returned items with explicit bounds and continuation state:

$/oneOf/0/properties/data/properties/candidates

Continuations and required actions

A response may include a structured continuation at the following schema location. Follow its tool call or user-action instruction instead of guessing how to continue:

$/oneOf/1/properties/continuation

Complete input schema

{
  "type": "object",
  "properties": {
    "scope": {
      "description": "The optional search scope.",
      "type": [
        "object",
        "null"
      ],
      "properties": {
        "kind": {
          "type": "string",
          "enum": [
            "Solution",
            "Project",
            "Document",
            "Projects"
          ],
          "default": "Solution"
        },
        "project": {
          "description": "Used only when kind is Project.",
          "type": [
            "object",
            "null"
          ],
          "properties": {
            "projectId": {
              "type": "string"
            },
            "name": {
              "type": "string"
            },
            "path": {
              "description": "Workspace-relative path.",
              "type": "string"
            },
            "targetFramework": {
              "type": "string"
            }
          }
        },
        "document": {
          "description": "Used only when kind is Document.",
          "type": [
            "object",
            "null"
          ],
          "properties": {
            "project": {
              "description": "Disambiguates documents with matching paths or IDs.",
              "type": [
                "object",
                "null"
              ],
              "properties": {
                "projectId": {
                  "type": "string"
                },
                "name": {
                  "type": "string"
                },
                "path": {
                  "description": "Workspace-relative path.",
                  "type": "string"
                },
                "targetFramework": {
                  "type": "string"
                }
              }
            },
            "path": {
              "description": "Workspace-relative path.",
              "type": "string"
            },
            "documentId": {
              "description": "Workspace-local document ID.",
              "type": "string"
            }
          }
        },
        "projects": {
          "description": "Used only when kind is Projects.",
          "type": [
            "array",
            "null"
          ],
          "items": {
            "description": "Provide projectId, name, path, targetFramework, or any combination.",
            "type": [
              "object",
              "null"
            ],
            "properties": {
              "projectId": {
                "type": "string"
              },
              "name": {
                "type": "string"
              },
              "path": {
                "description": "Workspace-relative path."