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Get API Surface

get-api-surface
Read-onlyIdempotent

Retrieve exported API symbols for a selected scope to inspect public API surface and accessibility.

Instructions

Returns exported API symbols for a selected scope.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
scopeNoThe search scope.
workspaceNoProvide workspaceId, alias, path, or any combination.
symbolsLimitNoMaximum number of results to return.
includeObsoleteNoWhether obsolete symbols should be included.
minimumAccessibilityNoThe minimum accessibility threshold as Public, Protected, or Internal.Public

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": {
      +            "symbols": {
      +              "description": "The returned exported API symbols.",
      +              "properties": {
      +                "hasMore": {
      +                  "description": "Whether additional items were available beyond this page.",
      +                  "type": "boolean"
      +                },
      +                "items": {
      +                  "description": "Items returned in this page.",
      +                  "items": {
      +                    "properties": {
      +                      "accessibility": {
      +                        "description": "The declared accessibility.",
      +                        "type": "string"
      +                      },
      +                      "isObsolete": {
      +                        "description": "Whether the symbol is marked obsolete.",
      +                        "type": "boolean"
      +                      },
      +                      "symbol": {
      +                        "description": "The exported 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"
      +                        ]
      +                      }
      +                    },
      +                    "required": [
      +                      "accessibility"
      +                    ],
      +                    "type": "object"
      +                  },
      +                  "type": [
      +                    "array",
      +                    "null"
      +                  ]
      +                },
      +                "totalCount": {
      +                  "description": "Complete result count, when available without additional expensive work.",
      +                  "type": [
      +                    "integer",
      +                    "null"
      +                  ]
      +                }
      +              },
      +              "type": "object"
      +            }
      +          },
      +          "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

C2.9/5.0
Behavior2/5

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

Annotations already declare readOnly, idempotent, non-destructive, and non-open-world, so the safety profile is covered. However, the description adds nothing beyond that — no explanation of what 'exported' means, how filtering interacts with minimumAccessibility/includeObsolete, or pagination behavior via symbolsLimit.

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

Conciseness4/5

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

A single front-loaded sentence with no filler. It is efficient, though the extreme brevity is arguably under-specification rather than a virtue for a 5-parameter tool.

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

Completeness3/5

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

An output schema exists, so return values need not be explained, and annotations cover the safety profile. Still, for a tool with nested scope objects and four scope kinds (Solution/Project/Document/Projects), the description does not clarify how the scope selection works, leaving a meaningful gap.

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% and every parameter (scope, workspace, symbolsLimit, includeObsolete, minimumAccessibility) is documented in the schema itself. The description only echoes 'scope' without adding format or semantics beyond what the schema provides, so the baseline 3 applies.

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 ('returns') and resource ('exported API symbols') scoped by a selection. This distinguishes it reasonably from siblings like search-symbols or get-symbol-info, though it never explicitly names an alternative to differentiate itself.

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

Usage Guidelines2/5

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

There is no when-to-use guidance, no prerequisites, and no mention of alternatives among the many symbol-related siblings. The agent must infer from the phrase 'exported API symbols' that this is a surface/catalog query rather than a targeted lookup.

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