output_types_table.md

Tool Output Types -- Cross-Provider Inventory

OpenAI (12 output types)

Resource/ItemParam variants (e.g., FunctionToolCallOutputResource, ApplyPatchToolCallOutputItemParam) are the same shape at different API boundaries -- omitted for simplicity.

Wire Type	Role	Family	In MEAI?	Wire output property
FunctionToolCallOutput	output	function	Yes (FunctionResultContent)	output (string)
CodeInterpreterToolCall	call+output	code-interpreter	Yes (CodeInterpreterToolResultContent)	outputs (array of logs/images)
FileSearchToolCall	call+output	file-search	Yes (bare ToolResultContent)	results (array of search results)
WebSearchToolCall	call+output	web-search	Yes (WebSearchToolResultContent)	action.sources (search results)
ImageGenToolCall	call+output	image-gen	Yes (ImageGenerationToolResultContent)	result (base64 image)
MCPToolCall	call+output	mcp	Yes (McpServerToolResultContent)	output / error
ComputerToolCallOutput	output	computer-use	Yes (bare ToolResultContent)	output (screenshot)
CustomToolCallOutput	output	custom	No (not in SDK)	output (string)
ApplyPatchToolCallOutput	output	apply-patch	No (not in SDK)	output (string)
FunctionShellCallOutput	output	function-shell	No (not in SDK)	output (stdout/stderr)
LocalShellToolCallOutput	output	local-shell	No (not in SDK)	output (string)
ToolSearchOutput	output	tool-search	No (not in SDK)	tools (metadata)

Azure Foundry (12 output types)

All outputs use output: anyOf(Object, String, Array) -- opaque BinaryData.

Wire Type	Role	Family	Wire output property
A2AToolCallOutput	output	a2a	output (opaque)
AzureAISearchToolCallOutput	output	azure-ai-search	output (opaque)
AzureFunctionToolCallOutput	output	azure-function	output (opaque)
BingCustomSearchToolCallOutput	output	bing-custom-search	output (opaque)
BingGroundingToolCallOutput	output	bing-grounding	output (opaque)
BrowserAutomationToolCallOutput	output	browser-automation	output (opaque)
FabricDataAgentToolCallOutput	output	fabric-data-agent	output (opaque)
OpenApiToolCallOutput	output	openapi	output (opaque)
SharepointGroundingToolCallOutput	output	sharepoint-grounding	output (opaque)
MemorySearchToolCallItemResource	call+output	memory-search	results (array)
OAuthConsentRequestOutputItem	output	oauth-consent	consent_link (url)
WorkflowActionOutputItem	output	workflow-action	(metadata only)

Anthropic (8 output types)

All results use envelope/payload pattern: the ToolResultBlock has content containing typed child blocks. All types carry a Beta prefix in the current spec.

Wire Type	Role	Family	In MEAI adapter?	Wire output property
RequestToolResultBlock	output	function	Yes (outbound only)	content (array of blocks)
ResponseMCPToolResultBlock	output	mcp	No	content (array of blocks)
ResponseBashCodeExecutionToolResultBlock	output	bash-code-execution	No	content (stdout, stderr)
ResponseCodeExecutionToolResultBlock	output	code-execution	No	content (stdout, stderr)
ResponseTextEditorCodeExecutionToolResultBlock	output	text-editor	No	content (view/edit results)
ResponseToolSearchToolResultBlock	output	tool-search	No	content (tool_references)
ResponseWebFetchToolResultBlock	output	web-fetch	No	content (url, text)
ResponseWebSearchToolResultBlock	output	web-search	No	content (search results)

Gemini (3 output types)

Wire Type	Role	Family	In MEAI adapter?	Wire output property
FunctionResponse	output	function	Outbound only	response (JSON object)
CodeExecutionResult	output	code-execution	Yes (CodeInterpreterToolResultContent)	output (string)
ToolResponse	output	generic-server-tool	No	response (JSON object)