Skip to main content
Glama
lantean-code

Roslyn Workbench MCP

by lantean-code
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Local

Get Symbol Members

get-symbol-members
Read-onlyIdempotent

List declared members of a resolved symbol, and optionally inherited or explicit interface members, to inspect available APIs.

Instructions

Lists declared members and optional inherited or interface members for a resolved symbol.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
symbolYesThe symbol selector.
workspaceNoProvide workspaceId, alias, path, or any combination.
membersLimitNoMaximum number of results to return.
expectedSnapshotNoEcho the snapshot returned with the data or transaction state used to construct this request.
includeInheritedNoWhether inherited members should be included.
includeExplicitInterfaceNoWhether explicit interface members should be included.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv1.0.4
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "$defs": {
+    "warningInfo": {
+      "properties": {
+        "code": {
+          "description": "The stable machine-readable warning code.",
+          "type": "string"
+        },
+        "message": {
+          "description": "The human-readable warning message.",
+          "type": "string"
+        }
+      },
+      "required": [
+        "code",
+        "message"
+      ],
+      "type": "object"
+    }
+  },
+  "oneOf": [
+    {
+      "properties": {
+        "data": {
+          "description": "Tool-specific result payload.",
+          "properties": {
+            "members": {
+              "description": "The resolved members.",
+              "properties": {
+                "hasMore": {
+                  "description": "Whether additional items were available beyond this page.",
+                  "type": "boolean"
+                },
+                "items": {
+                  "description": "Items returned in this page.",
+                  "items": {
+                    "properties": {
+                      "displayName": {
+                        "description": "The display name of the symbol.",
+                        "type": "string"
+                      },
+                      "documentationCommentId": {
+                        "description": "The documentation comment identifier, when available.",
+                        "type": [
+                          "string",
+                          "null"
+                        ]
+                      },
+                      "kind": {
+                        "description": "The symbol kind.",
+                        "type": "string"
+                      },
+                      "location": {
+                        "$ref": "#/properties/request/properties/value/properties/symbol/properties/location",
+                        "description": "The optional source location of the symbol."
+                      }
+                    },
+                    "required": [
+                      "displayName",
+                      "kind"
+                    ],
+                    "type": "object"
+                  },
+                  "type": [
+                    "array",
+                    "null"
+                  ]
+                },
+                "totalCount": {
+                  "description": "Complete result count, when available without additional expensive work.",
+                  "type": [
+                    "integer",
+                    "null"
+                  ]
+                }
+              },
+              "type": "object"
+            },
+            "symbol": {
+              "description": "The queried symbol.",
+              "properties": {
+                "displayName": {
+                  "description": "The display name of the symbol.",
+                  "type": "string"
+                },
+                "documentationCommentId": {
+                  "description": "The documentation comment identifier, when available.",
+                  "type": [
+                    "string",
+                    "null"
+                  ]
+                },
+                "kind": {
+                  "description": "The symbol kind.",
+                  "type": "string"
+                },
+                "location": {
+                  "description": "The optional source location of the symbol.",
+                  "properties": {
+                    "column": {
+                      "description": "The one-based column number.",
+                      "type": "integer"
+                    },
+                    "document": {
+                      "description": "The resolved document.",
+                      "properties": {
+                        "documentId": {
+                          "description": "The document identifier.",
+                          "type": "string"
+                        },
+                        "path": {
+                          "description": "The normalized document path.",
+                          "type": "string"
+                        },
+                        "projectId": {
+                          "description": "The owning project identifier.",
+                          "type": "string"
+                        }
+                      },
+                      "required": [
+                        "documentId",
+                        "path",
+                        "projectId"
+                      ],
+                      "type": [
+                        "object",
+                        "null"
+                      ]
+                    },
+                    "line": {
+                      "description": "The one-based line number.",
+                      "type": "integer"
+                    },
+                    "selector": {
+                      "description": "The canonical selector that can resolve this source location again.",
+                      "properties": {
+                        "span": {
+                          "properties": {
+                            "document": {
+                              "description": "Provide exactly one of path or documentId.",
+                              "properties": {
+                                "documentId": {
+                                  "description": "Workspace-local document ID.",
+                                  "type": [
+                                    "string",
+                                    "null"
+                                  ]
+                                },
+                                "path": {
+                                  "description": "Workspace-relative path.",
+                                  "type": [
+                                    "string",
+                                    "null"
+                                  ]
+                                },
+                                "project": {
+                                  "description": "Disambiguates documents with matching paths or IDs.",
+                                  "properties": {
+                                    "name": {
+                                      "type": [
+                                        "string",
+                                        "null"
+                                      ]
+                                    },
+                                    "path": {
+                                      "description": "Workspace-relative path.",
+                                      "type": [
+                                        "string",
+                                        "null"
+                                      ]
+                                    },
+                                    "projectId": {
+                                      "type": [
+                                        "string",
+                                        "null"
+                                      ]
+                                    },
+                                    "targetFramework": {
+                                      "type": [
+                                        "string",
+                                        "null"
+                                      ]
+                                    }
+                                  },
+                                  "type": [
+                                    "object",
+                                    "null"
+                                  ]
+                                }
+                              },
+                              "type": "object"
+                            },
+                            "range": {
+                              "description": "Zero-based UTF-16 range.",
+                              "properties": {
+                                "length": {
+                                  "description": "UTF-16 code-unit length.",
+                                  "maximum": 2147483647,
+                                  "minimum": 0,
+                                  "type": "integer"
+                                },
+                                "start": {
+                                  "description": "Zero-based UTF-16 offset.",
+                                  "maximum": 2147483647,
+                                  "minimum": 0,
+                                  "type": "integer"
+                                }
+                              },
+                              "type": "object"
+                            }
+                          },
+                          "required": [
+                            "document",
+                            "range"
+                          ],
+                          "type": "object"
+                        }
+                      },
+                      "required": [
+                        "span"
+                      ],
+                      "type": [
+                        "object",
+                        "null"
+                      ]
+                    },
+                    "snapshot": {
+                      "description": "The exact immutable workspace snapshot associated with this location.",
+                      "properties": {
+                        "snapshotId": {
+                          "format": "uuid",
+                          "type": "string"
+                        },
+                        "transactionRevision": {
+                          "type": [
+                            "integer",
+                            "null"
+                          ]
+                        },
+                        "workspaceEpoch": {
+                          "type": "integer"
+                        },
+                        "workspaceId": {
+                          "format": "uuid",
+                          "type": "string"
+                        }
+                      },
+                      "required": [
+                        "workspaceId",
+                        "workspaceEpoch",
+                        "snapshotId",
+                        "transactionRevision"
+                      ],
+                      "type": "object"
+                    },
+                    "span": {
+                      "description": "The resolved text span.",
+                      "properties": {
+                        "length": {
+                          "description": "UTF-16 code-unit length.",
+                          "maximum": 2147483647,
+                          "minimum": 0,
+                          "type": "integer"
+                        },
+                        "start": {
+                          "description": "Zero-based UTF-16 offset.",
+                          "maximum": 2147483647,
+                          "minimum": 0,
+                          "type": "integer"
+                        }
+                      },
+                      "type": [
+                        "object",
+                        "null"
+                      ]
+                    }
+                  },
+                  "required": [
+                    "snapshot"
+                  ],
+                  "type": [
+                    "object",
+                    "null"
+                  ]
+                }
+              },
+              "required": [
+                "displayName",
+                "kind"
+              ],
+              "type": [
+                "object",
+                "null"
+              ]
+            }
+          },
+          "type": [
+            "object",
+            "null"
+          ]
+        },
+        "ok": {
+          "const": true,
+          "description": "Whether the tool invocation succeeded."
+        },
+        "snapshot": {
+          "description": "Exact immutable workspace snapshot associated with the result, when available.",
+          "properties": {
+            "snapshotId": {
+              "format": "uuid",
+              "type": "string"
+            },
+            "transactionRevision": {
+              "type": [
+                "integer",
+                "null"
+              ]
+            },
+            "workspaceEpoch": {
+              "type": "integer"
+            },
+            "workspaceId": {
+              "format": "uuid",
+              "type": "string"
+            }
+          },
+          "required": [
+            "workspaceId",
+            "workspaceEpoch",
+            "snapshotId",
+            "transactionRevision"
+          ],
+          "type": "object"
+        },
+        "warnings": {
+          "description": "Non-fatal warnings the agent should consider.",
+          "items": {
+            "$ref": "#/$defs/warningInfo"
+          },
+          "type": "array"
+        }
+      },
+      "required": [
+        "ok",
+        "data",
+        "snapshot"
+      ],
+      "type": "object"
+    },
+    {
+      "properties": {
+        "continuation": {
+          "description": "Action the agent should take before retrying or continuing.",
+          "oneOf": [
+            {
+              "additionalProperties": false,
+              "properties": {
+                "instruction": {
+                  "description": "Agent-facing instruction explaining how to continue.",
+                  "minLength": 1,
+                  "type": "string"
+                },
+                "kind": {
+                  "const": "CallTool",
+                  "description": "Action required before the original request can continue."
+                },
+                "tool": {
+                  "description": "Tool to call before continuing the original request.",
+                  "minLength": 1,
+                  "type": "string"
+                }
+              },
+              "required": [
+                "kind",
+                "tool",
+                "instruction"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "instruction": {
+                  "description": "Agent-facing instruction explaining how to continue.",
+                  "minLength": 1,
+                  "type": "string"
+                },
+                "kind": {
+                  "const": "ChooseTool",
+                  "description": "Action required before the original request can continue."
+                },
+                "tools": {
+                  "description": "Allowed tool choices from which the agent must select one.",
+                  "items": {
+                    "description": "Name of a tool the agent may choose.",
+                    "minLength": 1,
+                    "type": "string"
+                  },
+                  "minItems": 1,
+                  "type": "array",
+                  "uniqueItems": true
+                }
+              },
+              "required": [
+                "kind",
+                "tools",
+                "instruction"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "instruction": {
+                  "description": "Agent-facing instruction explaining how to continue.",
+                  "minLength": 1,
+                  "type": "string"
+                },
+                "kind": {
+                  "const": "RetryRequest",
+                  "description": "Action required before the original request can continue."
+                }
+              },
+              "required": [
+                "kind",
+                "instruction"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "instruction": {
+                  "description": "Agent-facing instruction explaining how to continue.",
+                  "minLength": 1,
+                  "type": "string"
+                },
+                "kind": {
+                  "const": "ReviseRequest",
+                  "description": "Action required before the original request can continue."
+                }
+              },
+              "required": [
+                "kind",
+                "instruction"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "instruction": {
+                  "description": "Agent-facing instruction explaining how to continue.",
+                  "minLength": 1,
+                  "type": "string"
+                },
+                "kind": {
+                  "const": "ResolveExternally",
+                  "description": "Action required before the original request can continue."
+                }
+              },
+              "required": [
+                "kind",
+                "instruction"
+              ],
+              "type": "object"
+            }
+          ]
+        },
+        "diagnostics": {
+          "description": "Diagnostics that explain the failed invocation.",
+          "items": {
+            "properties": {
+              "id": {
+                "description": "The diagnostic identifier.",
+                "type": "string"
+              },
+              "location": {
+                "description": "The optional source location of the diagnostic.",
+                "properties": {
+                  "column": {
+                    "description": "The one-based column number.",
+                    "type": "integer"
+                  },
+                  "document": {
+                    "description": "The resolved document.",
+                    "properties": {
+                      "documentId": {
+                        "description": "The document identifier.",
+                        "type": "string"
+                      },
+                      "path": {
+                        "description": "The normalized document path.",
+                        "type": "string"
+                      },
+                      "projectId": {
+                        "description": "The owning project identifier.",
+                        "type": "string"
+                      }
+                    },
+                    "required": [
+                      "documentId",
+                      "path",
+                      "projectId"
+                    ],
+                    "type": [
+                      "object",
+                      "null"
+                    ]
+                  },
+                  "line": {
+                    "description": "The one-based line number.",
+                    "type": "integer"
+                  },
+                  "selector": {
+                    "description": "The canonical selector that can resolve this source location again.",
+                    "properties": {
+                      "span": {
+                        "properties": {
+                          "document": {
+                            "description": "Provide exactly one of path or documentId.",
+                            "properties": {
+                              "documentId": {
+                                "description": "Workspace-local document ID.",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ]
+                              },
+                              "path": {
+                                "description": "Workspace-relative path.",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ]
+                              },
+                              "project": {
+                                "description": "Disambiguates documents with matching paths or IDs.",
+                                "properties": {
+                                  "name": {
+                                    "type": [
+                                      "string",
+                                      "null"
+                                    ]
+                                  },
+                                  "path": {
+                                    "description": "Workspace-relative path.",
+                                    "type": [
+                                      "string",
+                                      "null"
+                                    ]
+                                  },
+                                  "projectId": {
+                                    "type": [
+                                      "string",
+                                      "null"
+                                    ]
+                                  },
+                                  "targetFramework": {
+                                    "type": [
+                                      "string",
+                                      "null"
+                                    ]
+                                  }
+                                },
+                                "type": [
+                                  "object",
+                                  "null"
+                                ]
+                              }
+                            },
+                            "type": "object"
+                          },
+                          "range": {
+                            "description": "Zero-based UTF-16 range.",
+                            "properties": {
+                              "length": {
+                                "description": "UTF-16 code-unit length.",
+                                "maximum": 2147483647,
+                                "minimum": 0,
+                                "type": "integer"
+                              },
+                              "start": {
+                                "description": "Zero-based UTF-16 offset.",
+                                "maximum": 2147483647,
+                                "minimum": 0,
+                                "type": "integer"
+                              }
+                            },
+                            "type": "object"
+                          }
+                        },
+                        "required": [
+                          "document",
+                          "range"
+                        ],
+                        "type": "object"
+                      }
+                    },
+                    "required": [
+                      "span"
+                    ],
+                    "type": [
+                      "object",
+                      "null"
+                    ]
+                  },
+                  "snapshot": {
+                    "description": "The exact immutable workspace snapshot associated with this location.",
+                    "properties": {
+                      "snapshotId": {
+                        "format": "uuid",
+                        "type": "string"
+                      },
+                      "transactionRevision": {
+                        "type": [
+                          "integer",
+                          "null"
+                        ]
+                      },
+                      "workspaceEpoch": {
+                        "type": "integer"
+                      },
+                      "workspaceId": {
+                        "format": "uuid",
+                        "type": "string"
+                      }
+                    },
+                    "required": [
+                      "workspaceId",
+                      "workspaceEpoch",
+                      "snapshotId",
+                      "transactionRevision"
+                    ],
+                    "type": "object"
+                  },
+                  "span": {
+                    "description": "The resolved text span.",
+                    "properties": {
+                      "length": {
+                        "description": "UTF-16 code-unit length.",
+                        "maximum": 2147483647,
+                        "minimum": 0,
+                        "type": "integer"
+                      },
+                      "start": {
+                        "description": "Zero-based UTF-16 offset.",
+                        "maximum": 2147483647,
+                        "minimum": 0,
+                        "type": "integer"
+                      }
+                    },
+                    "type": [
+                      "object",
+                      "null"
+                    ]
+                  }
+                },
+                "required": [
+                  "snapshot"
+                ],
+                "type": [
+                  "object",
+                  "null"
+                ]
+              },
+              "message": {
+                "description": "The diagnostic message.",
+                "type": "string"
+              },
+              "severity": {
+                "description": "The diagnostic severity.",
+                "enum": [
+                  "Hidden",
+                  "Info",
+                  "Warning",
+                  "Error"
+                ],
+                "type": "string"
+              }
+            },
+            "required": [
+              "id",
+              "message"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "error": {
+          "description": "Structured error details when the invocation failed.",
+          "properties": {
+            "code": {
+              "description": "Stable machine-readable error code.",
+              "type": "string"
+            },
+            "correlationId": {
+              "description": "Correlation identifier for matching the failure to server-side diagnostics, when available.",
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "message": {
+              "description": "Human-readable explanation of the failure.",
+              "type": "string"
+            }
+          },
+          "required": [
+            "code",
+            "message"
+          ],
+          "type": "object"
+        },
+        "ok": {
+          "const": false,
+          "description": "Whether the tool invocation succeeded."
+        },
+        "warnings": {
+          "description": "Non-fatal warnings the agent should consider.",
+          "items": {
+            "$ref": "#/$defs/warningInfo"
+          },
+          "type": "array"
+        }
+      },
+      "required": [
+        "ok",
+        "error"
+      ],
+      "type": "object"
+    },
+    {
+      "properties": {
+        "diagnostics": {
+          "description": "Diagnostics that explain the failed invocation.",
+          "properties": {
+            "detailsAvailable": {
+              "const": true
+            },
+            "detailsTool": {
+              "const": "get-error-details"
+            }
+          },
+          "required": [
+            "detailsAvailable",
+            "detailsTool"
+          ],
+          "type": "object"
+        },
+        "error": {
+          "description": "Structured error details when the invocation failed.",
+          "properties": {
+            "code": {
+              "const": "UnhandledException"
+            },
+            "correlationId": {
+              "format": "uuid",
+              "type": "string"
+            },
+            "message": {
+              "const": "Tool execution failed."
+            }
+          },
+          "required": [
+            "code",
+            "message",
+            "correlationId"
+          ],
+          "type": "object"
+        },
+        "ok": {
+          "const": false,
+          "description": "Whether the tool invocation succeeded."
+        },
+        "reporting": {
+          "description": "Error-reporting workflow available for an unhandled failure.",
+          "properties": {
+            "canPrepare": {
+              "type": "boolean"
+            },
+            "prepareTool": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "state": {
+              "enum": [
+                "Available",
+                "AlwaysApproved",
+                "DisabledByConfiguration",
+                "ApprovalUnavailable"
+              ],
+              "type": "string"
+            }
+          },
+          "required": [
+            "state"
+          ],
+          "type": "object"
+        }
+      },
+      "required": [
+        "ok",
+        "error",
+        "diagnostics"
+      ],
+      "type": "object"
+    }
+  ],
+  "type": "object"
+}
  2. First observedv1.0.2

TDQS

A3.6/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, so the safety profile is covered. The description adds that 'optional inherited or interface members' can be listed, which hints at behavioral scope. However, it doesn't explain what 'declared members' means (fields, methods, properties?), what the output looks like, or any constraints like the membersLimit behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single concise sentence that front-loads the core action and resource. No wasted words, and the mention of optional inclusions is appropriately placed.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With a detailed input schema and an output schema present, the description doesn't need to explain return values. It covers the key behavioral aspect (optional inherited/interface members) and is complete enough for an agent to call the tool correctly, though minor gaps like what 'declared' entails remain.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema fully documents all 6 parameters including nested symbol selectors and the includeInherited/includeExplicitInterface booleans. The description mentions 'optional inherited or interface members' which loosely maps to these parameters, but adds no syntax or format details beyond the schema. Baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb ('Lists') and resource ('declared members') for a 'resolved symbol', which is precise. The description covers the core purpose well, though it doesn't differentiate from siblings like get-symbol-info or get-type-hierarchy in terms of when you'd need members specifically.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage — you need a resolved symbol to get its members — but doesn't explicitly say when to use this vs alternatives like get-type-hierarchy or get-symbol-info. No exclusions or prerequisites are named.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Deploy Server

Other Tools