From 81b865b89dedb30a7efe98d6b4a4e268f9b99d60 Mon Sep 17 00:00:00 2001 From: ianshaw Date: Sat, 3 Jan 2026 17:09:50 -0800 Subject: [PATCH] =?UTF-8?q?fix(antigravity):=20Claude=20=E6=A8=A1=E5=9E=8B?= =?UTF-8?q?=E9=80=8F=E4=BC=A0=20tool=5Fuse=20=E7=9A=84=20signature?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit - Vertex/Google API 需要完整签名链路 - Claude 模型不再清空 tool_use 的 signature --- backend/internal/pkg/antigravity/request_transformer.go | 7 +++++-- .../internal/pkg/antigravity/request_transformer_test.go | 8 ++++---- 2 files changed, 9 insertions(+), 6 deletions(-) diff --git a/backend/internal/pkg/antigravity/request_transformer.go b/backend/internal/pkg/antigravity/request_transformer.go index d662be0e..0d2f1a00 100644 --- a/backend/internal/pkg/antigravity/request_transformer.go +++ b/backend/internal/pkg/antigravity/request_transformer.go @@ -240,10 +240,13 @@ func buildParts(content json.RawMessage, toolIDToName map[string]string, allowDu ID: block.ID, }, } - // 只有 Gemini 模型使用 dummy signature - // Claude 模型不设置 signature（避免验证问题） + // tool_use 的 signature 处理： + // - Gemini 模型：使用 dummy signature（跳过 thought_signature 校验） + // - Claude 模型：透传上游返回的真实 signature（Vertex/Google 需要完整签名链路） if allowDummyThought { part.ThoughtSignature = dummyThoughtSignature + } else if block.Signature != "" && block.Signature != dummyThoughtSignature { + part.ThoughtSignature = block.Signature } parts = append(parts, part) diff --git a/backend/internal/pkg/antigravity/request_transformer_test.go b/backend/internal/pkg/antigravity/request_transformer_test.go index 31615b58..d3a1d918 100644 --- a/backend/internal/pkg/antigravity/request_transformer_test.go +++ b/backend/internal/pkg/antigravity/request_transformer_test.go @@ -103,7 +103,7 @@ func TestBuildParts_ToolUseSignatureHandling(t *testing.T) { } }) - t.Run("Claude model - no signature for tool_use", func(t *testing.T) { + t.Run("Claude model - preserve valid signature for tool_use", func(t *testing.T) { toolIDToName := make(map[string]string) parts, err := buildParts(json.RawMessage(content), toolIDToName, false) if err != nil { @@ -112,9 +112,9 @@ func TestBuildParts_ToolUseSignatureHandling(t *testing.T) { if len(parts) != 1 || parts[0].FunctionCall == nil { t.Fatalf("expected 1 functionCall part, got %+v", parts) } - // Claude 模型不设置 signature - if parts[0].ThoughtSignature != "" { - t.Fatalf("expected no tool signature for Claude, got %q", parts[0].ThoughtSignature) + // Claude 模型应透传有效的 signature（Vertex/Google 需要完整签名链路） + if parts[0].ThoughtSignature != "sig_tool_abc" { + t.Fatalf("expected preserved tool signature %q, got %q", "sig_tool_abc", parts[0].ThoughtSignature) } }) }