feat(gemini): apply default safety settings across request translators

internal/translator/gemini-cli/claude/gemini-cli_claude_request.go

@@ -11,6 +11,7 @@ import (
 	"strings"
 
 	client "github.com/router-for-me/CLIProxyAPI/v6/internal/interfaces"
+	"github.com/router-for-me/CLIProxyAPI/v6/internal/translator/gemini/common"
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
 	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
@@ -173,5 +174,8 @@ func ConvertClaudeRequestToCLI(modelName string, inputRawJSON []byte, _ bool) []
 		out, _ = sjson.Set(out, "request.generationConfig.topK", v.Num)
 	}
 
-	return []byte(out)
+	outBytes := []byte(out)
+	outBytes = common.AttachDefaultSafetySettings(outBytes, "request.safetySettings")
+
+	return outBytes
 }

internal/translator/gemini-cli/gemini/gemini-cli_gemini_request.go

@@ -10,6 +10,7 @@ import (
 	"encoding/json"
 	"fmt"
 
+	"github.com/router-for-me/CLIProxyAPI/v6/internal/translator/gemini/common"
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
 	log "github.com/sirupsen/logrus"
 	"github.com/tidwall/gjson"
@@ -97,7 +98,7 @@ func ConvertGeminiRequestToGeminiCLI(_ string, inputRawJSON []byte, _ bool) []by
 		}
 	}
 
-	return rawJSON
+	return common.AttachDefaultSafetySettings(rawJSON, "request.safetySettings")
 }
 
 // FunctionCallGroup represents a group of function calls and their responses

internal/translator/gemini-cli/openai/chat-completions/gemini-cli_openai_request.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/misc"
+	"github.com/router-for-me/CLIProxyAPI/v6/internal/translator/gemini/common"
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
 	log "github.com/sirupsen/logrus"
 	"github.com/tidwall/gjson"
@@ -308,7 +309,7 @@ func ConvertOpenAIRequestToGeminiCLI(modelName string, inputRawJSON []byte, _ bo
 		}
 	}
 
-	return out
+	return common.AttachDefaultSafetySettings(out, "request.safetySettings")
 }
 
 // itoa converts int to string without strconv import for few usages.

internal/translator/gemini/claude/gemini_claude_request.go

@@ -11,6 +11,7 @@ import (
 	"strings"
 
 	client "github.com/router-for-me/CLIProxyAPI/v6/internal/interfaces"
+	"github.com/router-for-me/CLIProxyAPI/v6/internal/translator/gemini/common"
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
 	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
@@ -166,5 +167,8 @@ func ConvertClaudeRequestToGemini(modelName string, inputRawJSON []byte, _ bool)
 		out, _ = sjson.Set(out, "generationConfig.topK", v.Num)
 	}
 
-	return []byte(out)
+	result := []byte(out)
+	result = common.AttachDefaultSafetySettings(result, "safetySettings")
+
+	return result
 }

internal/translator/gemini/common/safety.go

@@ -0,0 +1,47 @@
+package common
+
+import (
+	"github.com/tidwall/gjson"
+	"github.com/tidwall/sjson"
+)
+
+// DefaultSafetySettings returns the default Gemini safety configuration we attach to requests.
+func DefaultSafetySettings() []map[string]string {
+	return []map[string]string{
+		{
+			"category":  "HARM_CATEGORY_HARASSMENT",
+			"threshold": "OFF",
+		},
+		{
+			"category":  "HARM_CATEGORY_HATE_SPEECH",
+			"threshold": "OFF",
+		},
+		{
+			"category":  "HARM_CATEGORY_SEXUALLY_EXPLICIT",
+			"threshold": "OFF",
+		},
+		{
+			"category":  "HARM_CATEGORY_DANGEROUS_CONTENT",
+			"threshold": "OFF",
+		},
+		{
+			"category":  "HARM_CATEGORY_CIVIC_INTEGRITY",
+			"threshold": "BLOCK_NONE",
+		},
+	}
+}
+
+// AttachDefaultSafetySettings ensures the default safety settings are present when absent.
+// The caller must provide the target JSON path (e.g. "safetySettings" or "request.safetySettings").
+func AttachDefaultSafetySettings(rawJSON []byte, path string) []byte {
+	if gjson.GetBytes(rawJSON, path).Exists() {
+		return rawJSON
+	}
+
+	out, err := sjson.SetBytes(rawJSON, path, DefaultSafetySettings())
+	if err != nil {
+		return rawJSON
+	}
+
+	return out
+}

internal/translator/gemini/gemini-cli/gemini_gemini-cli_request.go

@@ -9,6 +9,7 @@ import (
 	"bytes"
 	"fmt"
 
+	"github.com/router-for-me/CLIProxyAPI/v6/internal/translator/gemini/common"
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
 	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
@@ -45,5 +46,5 @@ func ConvertGeminiCLIRequestToGemini(_ string, inputRawJSON []byte, _ bool) []by
 		}
 	}
 
-	return rawJSON
+	return common.AttachDefaultSafetySettings(rawJSON, "safetySettings")
 }

internal/translator/gemini/gemini/gemini_gemini_request.go

@@ -7,6 +7,7 @@ import (
 	"bytes"
 	"fmt"
 
+	"github.com/router-for-me/CLIProxyAPI/v6/internal/translator/gemini/common"
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
 	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
@@ -19,10 +20,10 @@ import (
 // It keeps the payload otherwise unchanged.
 func ConvertGeminiRequestToGemini(_ string, inputRawJSON []byte, _ bool) []byte {
 	rawJSON := bytes.Clone(inputRawJSON)
-	// Fast path: if no contents field, return as-is
+	// Fast path: if no contents field, only attach safety settings
 	contents := gjson.GetBytes(rawJSON, "contents")
 	if !contents.Exists() {
-		return rawJSON
+		return common.AttachDefaultSafetySettings(rawJSON, "safetySettings")
 	}
 
 	toolsResult := gjson.GetBytes(rawJSON, "tools")
@@ -71,5 +72,7 @@ func ConvertGeminiRequestToGemini(_ string, inputRawJSON []byte, _ bool) []byte
 		return true
 	})
 
+	out = common.AttachDefaultSafetySettings(out, "safetySettings")
+
 	return out
 }

internal/translator/gemini/openai/chat-completions/gemini_openai_request.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/misc"
+	"github.com/router-for-me/CLIProxyAPI/v6/internal/translator/gemini/common"
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
 	log "github.com/sirupsen/logrus"
 	"github.com/tidwall/gjson"
@@ -308,6 +309,8 @@ func ConvertOpenAIRequestToGemini(modelName string, inputRawJSON []byte, _ bool)
 		}
 	}
 
+	out = common.AttachDefaultSafetySettings(out, "safetySettings")
+
 	return out
 }
 

internal/translator/gemini/openai/responses/gemini_openai-responses_request.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"strings"
 
+	"github.com/router-for-me/CLIProxyAPI/v6/internal/translator/gemini/common"
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
 	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
@@ -291,5 +292,7 @@ func ConvertOpenAIResponsesRequestToGemini(modelName string, inputRawJSON []byte
 			}
 		}
 	}
-	return []byte(out)
+	result := []byte(out)
+	result = common.AttachDefaultSafetySettings(result, "safetySettings")
+	return result
 }