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fix(google-antigravity): persist thought-signature replay across restarts #1434

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b9ec99e
fix(google-antigravity): persist thought-signature replay across rest…
Yuxin-Qiao Aug 10, 2026
863aaf8
fix(google-antigravity): recompute snapshot sizes, flush to latest mu…
Yuxin-Qiao Aug 11, 2026
2bb294b
docs(adapters): describe thoughtSignature values as opaque
Yuxin-Qiao Aug 11, 2026
aa7da3f
fix(google-antigravity): bound flush retry loop; restore console.warn…
Yuxin-Qiao Aug 11, 2026
eabaf27
fix(google-antigravity): persist load-time cleanups, order snapshot c…
Yuxin-Qiao Aug 11, 2026
22d93ab
fix(google-antigravity): collapse duplicate call keys during snapshot…
Yuxin-Qiao Aug 11, 2026
8e17192
test(google-antigravity): verify duplicate-key cleanup at load before…
Yuxin-Qiao Aug 11, 2026
b52932e
test(google-antigravity): assert warning redaction and load-only expi…
Yuxin-Qiao Aug 11, 2026
c9c14e0
test(google-antigravity): cover UTF-8 replay byte limits
Yuxin-Qiao Aug 11, 2026
3dad8a8
fix: bound antigravity replay snapshot flush
Yuxin-Qiao Aug 11, 2026
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3 changes: 2 additions & 1 deletion docs-site/src/content/docs/ja/reference/adapters.md
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Expand Up @@ -74,7 +74,8 @@ HTTP リトライ ループの対象外です。

- システムプロンプト → `systemInstruction`；メッセージ → `contents[]`（assistant → `model`）；ツール →
`functionDeclarations`。data URL 画像 → `inline_data`。
- Gemini が tool-call id を省略すると合成します。Vertex と Antigravity では実際の `thoughtSignature` 値を保存・再利用し、tool-result の継続ターンでも reasoning の連続性を保ちます。
- Gemini が tool-call id を省略すると合成します。Vertex と Antigravity では不透明な `thoughtSignature` 値を保存・再利用し、tool-result の継続ターンでも reasoning の連続性を保ちます。
署名キャッシュは設定ディレクトリにスナップショットされるため、プロキシ再起動後も継続ターンを維持できます。

## `kiro`

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3 changes: 2 additions & 1 deletion docs-site/src/content/docs/ko/reference/adapters.md
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Expand Up @@ -86,8 +86,9 @@ interface ProviderAdapter {

- 시스템 프롬프트 → `systemInstruction`; 메시지 → `contents[]`(assistant → `model`); 툴 →
`functionDeclarations`. data URL 이미지 → `inline_data`.
- Gemini가 tool-call id를 생략하면 합성합니다. Vertex와 Antigravity에서는 실제
- Gemini가 tool-call id를 생략하면 합성합니다. Vertex와 Antigravity에서는 불투명한
`thoughtSignature` 값을 보존하고 재사용해 tool-result 후속 턴에서도 reasoning 연속성을 유지합니다.
서명 캐시는 설정 디렉터리에 스냅샷되므로 프록시 재시작 후에도 후속 턴이 유지됩니다.

## `kiro`

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4 changes: 3 additions & 1 deletion docs-site/src/content/docs/reference/adapters.md
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Expand Up @@ -91,7 +91,9 @@ of the HTTP retry loop.
- System prompt → `systemInstruction`; messages → `contents[]` (assistant → `model`); tools →
`functionDeclarations`. Data-URL images → `inline_data`.
- Tool-call ids are synthesized when Gemini omits them. Vertex and Antigravity preserve and replay
real `thoughtSignature` values so tool-result continuations retain Gemini reasoning continuity.
opaque `thoughtSignature` values so tool-result continuations retain Gemini reasoning continuity.
The signature cache is snapshotted to the config directory, so continuations also survive proxy
restarts.
Comment thread
Yuxin-Qiao marked this conversation as resolved.
- **Inline image output:** when the model is one of the explicit image-capable chat IDs
(`gemini-3.1-flash-image`, `gemini-2.0-flash-preview-image-generation`, or
`gemini-3-pro-image-preview`), the adapter sends `responseModalities: ["TEXT", "IMAGE"]`.
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5 changes: 3 additions & 2 deletions docs-site/src/content/docs/ru/reference/adapters.md
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Expand Up @@ -92,8 +92,9 @@ interface ProviderAdapter {
- Системный промпт → `systemInstruction`; сообщения → `contents[]` (assistant → `model`);
инструменты → `functionDeclarations`. Изображения из data-URL → `inline_data`.
- Идентификаторы вызовов инструментов синтезируются, когда Gemini их опускает. Vertex и Antigravity
сохраняют и повторно передают настоящие значения `thoughtSignature`, чтобы непрерывность
рассуждений сохранялась после возврата результата инструмента.
сохраняют и повторно передают непрозрачные значения `thoughtSignature`, чтобы непрерывность
рассуждений сохранялась после возврата результата инструмента. Кэш подписей сохраняется в каталог
конфигурации, поэтому последующие ходы переживают и перезапуск прокси.

## `kiro`

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5 changes: 3 additions & 2 deletions docs-site/src/content/docs/zh-cn/reference/adapters.md
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Expand Up @@ -80,8 +80,9 @@ interface ProviderAdapter {

- 系统提示词 → `systemInstruction`；消息 → `contents[]`（assistant → `model`）；工具 →
`functionDeclarations`；data URL 图像 → `inline_data`。
- Gemini 省略 tool-call id 时会合成 id。Vertex 与 Antigravity 会保留并重放真实
`thoughtSignature`，使 tool-result 后续 turn 保持 reasoning continuity。
- Gemini 省略 tool-call id 时会合成 id。Vertex 与 Antigravity 会保留并重放不透明
`thoughtSignature`，使 tool-result 后续 turn 保持 reasoning continuity。签名缓存会快照到配置
目录，因此代理重启后后续 turn 仍可继续。

## `kiro`

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