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Improve thinking/tool signature handling for Claude and Gemini requests

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Prefer cached signatures and avoid injecting dummy thinking blocks; instead remove unsigned thinking blocks and add a skip sentinel for tool calls without a valid signature. Generate stable session IDs from the first user message, apply schema cleaning only for Claude models, and reorder thinking parts so thinking appears first. For Gemini, remove thinking blocks and attach a skip sentinel to function calls. Simplify response handling by passing raw function args through (remove special Bash conversion). Update and add tests to reflect the new behavior.

These changes prevent rejected dummy signatures, improve compatibility with Antigravity’s signature validation, provide more stable session IDs for conversation grouping, and make request/response translation more robust.
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이대희
2025-12-21 15:15:50 +09:00
parent 406a27271a
commit 1e9e4a86a2
7 changed files with 420 additions and 181 deletions
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28
internal/translator/antigravity/gemini/antigravity_gemini_request.go
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@@ -98,16 +98,34 @@ func ConvertGeminiRequestToAntigravity(_ string, inputRawJSON []byte, _ bool) []
}
}
gjson.GetBytes(rawJSON, "request.contents").ForEach(func(key, content gjson.Result) bool {
// Gemini-specific handling: add skip_thought_signature_validator to functionCall parts
// and remove thinking blocks entirely (Gemini doesn't need to preserve them)
const skipSentinel = "skip_thought_signature_validator"
gjson.GetBytes(rawJSON, "request.contents").ForEach(func(contentIdx, content gjson.Result) bool {
if content.Get("role").String() == "model" {
content.Get("parts").ForEach(func(partKey, part gjson.Result) bool {
// First pass: collect indices of thinking parts to remove
var thinkingIndicesToRemove []int64
content.Get("parts").ForEach(func(partIdx, part gjson.Result) bool {
// Mark thinking blocks for removal
if part.Get("thought").Bool() {
thinkingIndicesToRemove = append(thinkingIndicesToRemove, partIdx.Int())
}
// Add skip sentinel to functionCall parts
if part.Get("functionCall").Exists() {
rawJSON, _ = sjson.SetBytes(rawJSON, fmt.Sprintf("request.contents.%d.parts.%d.thoughtSignature", key.Int(), partKey.Int()), "skip_thought_signature_validator")
} else if part.Get("thoughtSignature").Exists() {
rawJSON, _ = sjson.SetBytes(rawJSON, fmt.Sprintf("request.contents.%d.parts.%d.thoughtSignature", key.Int(), partKey.Int()), "skip_thought_signature_validator")
existingSig := part.Get("thoughtSignature").String()
if existingSig == "" || len(existingSig) < 50 {
rawJSON, _ = sjson.SetBytes(rawJSON, fmt.Sprintf("request.contents.%d.parts.%d.thoughtSignature", contentIdx.Int(), partIdx.Int()), skipSentinel)
}
}
return true
})
// Remove thinking blocks in reverse order to preserve indices
for i := len(thinkingIndicesToRemove) - 1; i >= 0; i-- {
idx := thinkingIndicesToRemove[i]
rawJSON, _ = sjson.DeleteBytes(rawJSON, fmt.Sprintf("request.contents.%d.parts.%d", contentIdx.Int(), idx))
}
}
return true
})