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fix: use Responses-compatible function tool_choice format

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ivanvolt
2026-04-28 16:26:09 +08:00
parent b0a2252ed1
commit 04b2866f65
7 changed files with 150 additions and 16 deletions
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15
backend/internal/pkg/apicompat/responses_to_anthropic_request.go
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@@ -428,7 +428,8 @@ func normalizeAnthropicInputSchema(schema json.RawMessage) json.RawMessage {
// "auto" → {"type":"auto"}
// "required" → {"type":"any"}
// "none" → {"type":"none"}
// {"type":"function","function":{"name":"X"}} → {"type":"tool","name":"X"}
// {"type":"function","name":"X"} → {"type":"tool","name":"X"}
// {"type":"function","function":{"name":"X"}} → {"type":"tool","name":"X"} // legacy
func convertResponsesToAnthropicToolChoice(raw json.RawMessage) (json.RawMessage, error) {
// Try as string first
var s string
@@ -448,14 +449,22 @@ func convertResponsesToAnthropicToolChoice(raw json.RawMessage) (json.RawMessage
// Try as object with type=function
var tc struct {
Type string `json:"type"`
Name string `json:"name"`
Function struct {
Name string `json:"name"`
} `json:"function"`
}
if err := json.Unmarshal(raw, &tc); err == nil && tc.Type == "function" && tc.Function.Name != "" {
if err := json.Unmarshal(raw, &tc); err == nil && tc.Type == "function" {
name := strings.TrimSpace(tc.Name)
if name == "" {
name = strings.TrimSpace(tc.Function.Name)
}
if name == "" {
return raw, nil
}
return json.Marshal(map[string]string{
"type": "tool",
"name": tc.Function.Name,
"name": name,
})
}