feat: add Anthropic Claude message format helpers, fix some types and change names #105
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Add support for Anthropic Claude-style messages as input and output: Input formats now supported: - OpenResponses format (native) - OpenAI Chat Completions format (Message[]) - Anthropic Claude format (ClaudeMessageParam[]) Output methods added/renamed: - getChatMessage() - returns OpenAI chat format (renamed from getMessage) - getClaudeMessage() - returns Anthropic Claude format (new) - getNewChatMessagesStream() - stream chat messages (renamed from getNewMessagesStream) Also includes: - New ClaudeMessage types mirroring Anthropic SDK types - Automatic format detection and conversion - convertToClaudeMessage() helper for response transformation - Updated examples demonstrating all input/output formats - E2E tests for Claude-style message handling BREAKING CHANGE: getMessage() renamed to getChatMessage() BREAKING CHANGE: getNewMessagesStream() renamed to getNewChatMessagesStream() 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
louisgv
reviewed
Dec 16, 2025
louisgv
reviewed
Dec 16, 2025
louisgv
reviewed
Dec 16, 2025
louisgv
reviewed
Dec 16, 2025
louisgv
reviewed
Dec 16, 2025
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This feels a bit weird to me in that we're shoving Anthropic input shape into callModel. Shouldn't we be owning the callModel API shape (?)
Change return type from chat format (AssistantMessage | ToolResponseMessage) to responses format (ResponsesOutputMessage | OpenResponsesFunctionCallOutput). - Add buildResponsesMessageStream() for streaming ResponsesOutputMessage - Add extractResponsesMessageFromResponse() for extracting from response - Update tests to validate new ResponsesOutputMessage shape - Update example and documentation 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
The getChatMessage method doesn't exist on ResponseWrapper. Use getResponse() + toChatMessage() helper instead. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
… into fix-types-and-anthropic-messages
Demonstrates multi-turn conversations using: - ClaudeMessageParam type for Claude-style message format - fromClaudeMessages() to convert to OpenResponses input format - toClaudeMessage() to convert responses back to Claude format 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
The toChatMessage function is exported from chat-compat.js, not sdk.js. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
mattapperson
changed the title
The callModel function now accepts ClaudeMessageParam[] directly and automatically converts them to OpenResponses format using fromClaudeMessages(). This enables passing Claude-style messages without manual conversion: - ClaudeMessageParam[] with string content - ClaudeMessageParam[] with content blocks (text, tool_use, tool_result, image) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
… into fix-types-and-anthropic-messages
subtleGradient
requested changes
Dec 17, 2025
- Add auto-detection of Claude-style messages with content block arrays - Convert Claude content blocks (text, image) to OpenRouter format - Fixes validation errors when passing Claude MessageParam directly to callModel() - Resolves CI test failures for Claude-style messages with content blocks arrays
subtleGradient
approved these changes
Dec 17, 2025
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Summary
ClaudeMessageParam[]) as input tocallModel()getClaudeMessage()output method returning Anthropic-compatible response formatgetMessage()→getChatMessage()andgetNewMessagesStream()→getNewChatMessagesStream()for clarityInput formats now supported:
Message[])ClaudeMessageParam[])New types added:
ClaudeMessage,ClaudeMessageParam,ClaudeContentBlock, and related types mirroring the Anthropic SDK