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Feat: responses to anthropic #4819

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8654502
feat: direct Responses API to Anthropic Messages converter
clansty May 12, 2026
5507920
feat: transparent custom_tool round-trip and built-in tool stripping …
clansty May 12, 2026
e28c67a
fix: strip freeform hint from custom tool description
clansty May 12, 2026
ae34379
fix: emit event: header on Responses SSE for Claude path
clansty May 12, 2026
ea5f64b
fix: serialize function_call.arguments as JSON string
clansty May 12, 2026
54f11b8
fix: accept echoed custom_tool_call input items in multi-turn
clansty May 12, 2026
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2 changes: 2 additions & 0 deletions dto/claude.go
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,8 @@ type ClaudeMediaMessage struct {
Input any `json:"input,omitempty"`
Content any `json:"content,omitempty"`
ToolUseId string `json:"tool_use_id,omitempty"`
// redacted_thinking
Data string `json:"data,omitempty"`
}

func (c *ClaudeMediaMessage) SetText(s string) {
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52 changes: 29 additions & 23 deletions dto/openai_response.go
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Expand Up @@ -334,20 +334,23 @@ func (o *OpenAIResponsesResponse) GetSize() string {
}

type IncompleteDetails struct {
Reasoning string `json:"reasoning"`
Reason string `json:"reason,omitempty"`
}

type ResponsesOutput struct {
Type string `json:"type"`
ID string `json:"id"`
Status string `json:"status"`
Role string `json:"role"`
Content []ResponsesOutputContent `json:"content"`
Quality string `json:"quality"`
Size string `json:"size"`
CallId string `json:"call_id,omitempty"`
Name string `json:"name,omitempty"`
Arguments json.RawMessage `json:"arguments,omitempty"`
Type string `json:"type"`
ID string `json:"id"`
Status string `json:"status,omitempty"`
Role string `json:"role,omitempty"`
Content []ResponsesOutputContent `json:"content,omitempty"`
Quality string `json:"quality,omitempty"`
Size string `json:"size,omitempty"`
CallId string `json:"call_id,omitempty"`
Name string `json:"name,omitempty"`
Arguments json.RawMessage `json:"arguments,omitempty"`
Input string `json:"input,omitempty"`
Summary []ResponsesReasoningSummaryPart `json:"summary,omitempty"`
EncryptedContent string `json:"encrypted_content,omitempty"`
}

// ArgumentsString returns function call arguments in the string form expected by Chat Completions.
Expand Down Expand Up @@ -388,19 +391,22 @@ const (
ResponsesOutputTypeItemDone = "response.output_item.done"
)

// ResponsesStreamResponse 用于处理 /v1/responses 流式响应
type ResponsesStreamResponse struct {
Type string `json:"type"`
Response *OpenAIResponsesResponse `json:"response,omitempty"`
Delta string `json:"delta,omitempty"`
Item *ResponsesOutput `json:"item,omitempty"`
// - response.function_call_arguments.delta
// - response.function_call_arguments.done
OutputIndex *int `json:"output_index,omitempty"`
ContentIndex *int `json:"content_index,omitempty"`
SummaryIndex *int `json:"summary_index,omitempty"`
ItemID string `json:"item_id,omitempty"`
Part *ResponsesReasoningSummaryPart `json:"part,omitempty"`
Type string `json:"type"`
Response *OpenAIResponsesResponse `json:"response,omitempty"`
Delta string `json:"delta,omitempty"`
Item *ResponsesOutput `json:"item,omitempty"`
OutputIndex *int `json:"output_index,omitempty"`
ContentIndex *int `json:"content_index,omitempty"`
SummaryIndex *int `json:"summary_index,omitempty"`
AnnotationIndex *int `json:"annotation_index,omitempty"`
ItemID string `json:"item_id,omitempty"`
Part any `json:"part,omitempty"`
Text string `json:"text,omitempty"`
Arguments string `json:"arguments,omitempty"`
Input string `json:"input,omitempty"`
Annotation any `json:"annotation,omitempty"`
SequenceNumber int `json:"sequence_number"`
}

// GetOpenAIError 从动态错误类型中提取OpenAIError结构
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9 changes: 7 additions & 2 deletions relay/channel/claude/adaptor.go
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Expand Up @@ -108,8 +108,13 @@ func (a *Adaptor) ConvertEmbeddingRequest(c *gin.Context, info *relaycommon.Rela
}

func (a *Adaptor) ConvertOpenAIResponsesRequest(c *gin.Context, info *relaycommon.RelayInfo, request dto.OpenAIResponsesRequest) (any, error) {
// TODO implement me
return nil, errors.New("not implemented")
claudeReq, customToolNames, err := ConvertResponsesRequestToClaude(&request)
if err != nil {
return nil, err
}
// 无条件覆盖：retry 或 pass-through 路径下，前一次设置的 customToolNames 不应残留污染响应分支。
c.Set(customToolNamesContextKey, customToolNames)
return claudeReq, nil
}

func (a *Adaptor) DoRequest(c *gin.Context, info *relaycommon.RelayInfo, requestBody io.Reader) (any, error) {
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