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feat(anthropic): add support for "extra body" #266

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Merged
andreynering merged 1 commit into from
Jun 2, 2026
Merged

feat(anthropic): add support for "extra body" #266

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8 changes: 8 additions & 0 deletions providers/anthropic/anthropic.go
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,11 @@ func betaRequestOptions(flags []string) []option.RequestOption {
// by Generate and Stream: user-agent, raw tool injection, and any
// beta API flags.
func buildRequestOptions(call fantasy.Call, rawTools []json.RawMessage, betaFlags []string) []option.RequestOption {
providerOptions := &ProviderOptions{}
if v, ok := call.ProviderOptions[Name]; ok {
providerOptions, _ = v.(*ProviderOptions)
}

reqOpts := callUARequestOptions(call)
if len(rawTools) > 0 {
// Tools are injected as raw JSON rather than via params.Tools
Expand All @@ -50,6 +55,9 @@ func buildRequestOptions(call fantasy.Call, rawTools []json.RawMessage, betaFlag
// this will need updating.
reqOpts = append(reqOpts, option.WithJSONSet("tools", rawTools))
}
for k, v := range providerOptions.ExtraBody {
reqOpts = append(reqOpts, option.WithJSONSet(k, v))
}
if len(betaFlags) > 0 {
reqOpts = append(reqOpts, betaRequestOptions(betaFlags)...)
}
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1 change: 1 addition & 0 deletions providers/anthropic/provider_options.go
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Expand Up @@ -71,6 +71,7 @@ type ProviderOptions struct {
Thinking *ThinkingProviderOption `json:"thinking"`
Effort *Effort `json:"effort"`
DisableParallelToolUse *bool `json:"disable_parallel_tool_use"`
ExtraBody map[string]any `json:"extra_body,omitempty"`
}

// Options implements the ProviderOptions interface.
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