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Add image support in tool results across all providers

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Tool results now use content blocks and can include both text and images.
All providers (Anthropic, Google, OpenAI Completions, OpenAI Responses)
correctly pass images from tool results to LLMs.

- Update ToolResultMessage type to use content blocks
- Add placeholder text for image-only tool results in Google/Anthropic
- OpenAI providers send tool result + follow-up user message with images
- Fix Anthropic JSON parsing for empty tool arguments
- Add comprehensive tests for image-only and text+image tool results
- Update README with tool result content blocks API
This commit is contained in:
Mario Zechner 2025-11-12 10:45:56 +01:00
parent 9dac37d836
commit 84dcab219b
37 changed files with 720 additions and 544 deletions
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8
packages/ai/test/handoff.test.ts
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@ -55,7 +55,7 @@ const providerContexts = {
role: "toolResult" as const,
toolCallId: "toolu_01abc123",
toolName: "get_weather",
output: "Weather in Tokyo: 18°C, partly cloudy",
content: [{ type: "text", text: "Weather in Tokyo: 18°C, partly cloudy" }],
isError: false,
timestamp: Date.now(),
} satisfies ToolResultMessage,
@ -106,7 +106,7 @@ const providerContexts = {
role: "toolResult" as const,
toolCallId: "call_gemini_123",
toolName: "get_weather",
output: "Weather in Berlin: 22°C, sunny",
content: [{ type: "text", text: "Weather in Berlin: 22°C, sunny" }],
isError: false,
timestamp: Date.now(),
} satisfies ToolResultMessage,
@ -156,7 +156,7 @@ const providerContexts = {
role: "toolResult" as const,
toolCallId: "call_abc123",
toolName: "get_weather",
output: "Weather in London: 15°C, rainy",
content: [{ type: "text", text: "Weather in London: 15°C, rainy" }],
isError: false,
timestamp: Date.now(),
} satisfies ToolResultMessage,
@ -208,7 +208,7 @@ const providerContexts = {
role: "toolResult" as const,
toolCallId: "call_789_item_012", // Match the updated ID format
toolName: "get_weather",
output: "Weather in Sydney: 25°C, clear",
content: [{ type: "text", text: "Weather in Sydney: 25°C, clear" }],
isError: false,
timestamp: Date.now(),
} satisfies ToolResultMessage,